Tubular low maintanance battery

8/10/2019 Tubular low maintanance battery

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INSTALLATION

&

OPERATION MANUAL

LOW MAINTENANCE LEAD ACID BATTERIES

For NDP, HDP & SPV APPLICATIONS

HBL POWER SYSTEMS LTD.Survey No. 155 / 1 & 156 Part,Sheripally (B) (V), Boothpur (M)

Mahaboob Nagar (D), Andhra Pradesh 509382


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CONTENTS

PAGE

Please read the instructions given in this manual to obtain the optimum(best) performance and life out of Low Maintenance Lead acid batteries.

Precautions pertaining to installation, commissioning and operating ofthese batteries given in various sections of this manual (Followingprecautions) should be strictly followed.

1. INTRODUCTION 01

2. SAFETY PRECAUTIONS 03

3. RECEIVING THE SHIPMENT 03

4. STORAGE 04

5. UNPACKING 05

6. INSTALLATION 05

7. PREFERED FACILITIES FOR TREATMENT/FOR

INSTALLATION & OPERATION OF LOW

MAINTENECE LEAD ACID BATTERIES 08

8. POWER PLANT COMPATIBILITY / SELECTION

OF CHARGER 08

9. CHARGING 10

10. PERFORMANCE OF BATTERIES 18

11. DOS ANDDONTS 24

12. WARRANTY CONDITIONS 25

13. MAINTENANCE 28

14. SPECIAL MAINTENANCE INSTRUCTIONS 31


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Disposal Action

After completion of service life, batteries should not be dumped or

incinerate to environment. Contact HBL for disposal action.

RECYCLE

RETURNL

EAD

Pb


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1.0 INTRODUCTION

HBL backed by its core strength as R&D has been continuouslyupdating its designs with the latest advancements for variousapplications.

Products from HBL have been in use in sectors of Telecom,Industry, Defence, Railways, Aviation and are well designed to meetthe rigorous working conditions.

1.1 SPECIAL FEATURES OF LOW-MAINTENACE CELLS / BATTERIES

Special alloy for grids to minimize water loss & self-discharge.

High impact resistance PPSFM / Rugged Hard rubber containers& covers

Reduced frequency of water topping up.

High charging efficiency

Low self-discharge

Long service life under deep cycle usage.

Low maintenance lead acid cells / batteries consists of Tubularpositive plates, Pasted negative plates and micro porous separatorsassembled in high impact resistance PPSFM / Rugged Hard rubbercontainers and covers. Each cell provided with bolted typeterminals, Micro porous vent plugs and float guides.

1.2 TUBULAR POSITIVE PLATE

Spine grids are made of corrosion resistant Lead alloy and arepressure diecasted. Multi-tubular bags fitted to grids have highoutstanding (better to replace with some other word) characteristicsof porosity, acid resistance, oxidation resistance and high rupture(word "puncture" may be more appropriate) strength. This designof tubular positive plate enable the active material to be retained

within the bags so that shedding is restricted during its service life.

1.3 PASTED NEGATIVE PLATES

Consists of grids with ribbed structure made from lead alloy andhaving pockets, which hold the active material firmly. The active


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1.4 MICROPOROUS SEPARATORS

The separators used have high porosity, low electrical resistancefor ionic flow and high oxidation resistance.

1.5 CONTAINER AND COVERS

The PPSFM / Rugged Hard rubber containers and covers whichhold plate stacks (element groups) are Sturdy, Vibration resistance,High impact strength and Low acid permeability.

1.6 MICROPOROUS VENT PLUGS

Micro porous vent plugs minimize evaporation of water from thecell / battery and the porous structures trap the escaping watervapour and allow only gases to go out.

1.7 FLOAT GUIDES / LEVEL INDICATERS

An acid level-indicating float guide with level marking is located at

the top of each cell for showing the acid level.

HBL Batteries conform to IS 1651:1991 specifications and havebeen tested & approved by Govt Labs such as CECRI, ETDC andERTL. Capacities of these batteries are designated at 10 hrdischarge rate, to an end voltage of 1.85 Volts/cell, at an ambienttemperature of 27C, which is referred to as the nominal capacityof the battery and is expressed in Ampere-hours (Ah).

HBL Batteries are designed to provide trouble free service whenused in accordance with the guidelines & instructions given in thisbooklet.

For further help or clarifications please contact our nearestCustomer Service centres. (Addresses provided at the rear side ofthis manual).

Toll free number 1800-425-2939

material is prepared under controlled conditions with necessaryadditives for an efficient electrical performance of the cell / batteryincluding features of long service life.


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2.0 SAFETY PRECAUTIONS

Only authorized and trained personnel familiar with batteryinstallation, operation and maintenance should be permitted to workon the battery.

Following precautions should be followed for the safety of theoperator and also of the battery system.

Do not touch inter cell connectors or terminals of the batterywithout wearing gloves.

Isolate the battery from the Charger / Load while working on thebattery to avoid sparks.

Use only insulated tools for maintenance of battery to avoid anyaccidental shorting.

Remove metal wristbands, chains, and loose coins from shirt /pockets while working on the battery to avoid any accidentalshorting.

Do not allow metal objects to rest on the battery or fall acrossthe terminals

Do not expose the battery to open flame or sparks.

Do not tamper with cell vent plug.

Ensure that the connections are made as per the GeneralArrangement (G.A) enclosed.

Do not attempt to move the installed battery without removinginter cell/module connectors.

Keep the battery clean and dry.

In case of accidental contact with acid, wash the affected areawith a continuous flow of water for 15 minutes and consult doctorimmediately.

3.0 RECEIVING THE SHIPMENT

Cells / batteries are packed in separate packing boxes.

3.1 Unloading the shipment

Use forklift or portable crane or chain pulley block or any othersuitable material handling equipment


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If unloaded manually, the packing boxes should be handledcarefully. Do not drop on to the ground.

Do not handle more than one box at a time.

3.2 Receiving the shipment

Inspect the packing boxes carefully for any transit damages.

Check the shipment as per the packing list including electrolyteqty. and Sp.gr.

If there is any damage during transportation of short shipmentof any item, then make a detailed Note of it in the delivery receiptbefore you accept the shipment. Inform the same to HBL Powersystems ltd within 15 days so that the insurance claim can bemade and the damaged material can be replaced. Delay ininforming may result in loss of right to reimbursement fordamages.

If transit damages are notified after storage, warranty claimswill not be entertained.

4.0 STORAGE

If the batteries are not to be used immediately, they should be storedin a cool, dry location, protected from direct sunlight and rain. Ifbatteries are to be stored in packed condition, packing boxes shouldbe placed on the floor in the upright position as indicated by thedirection arrows. Do not keep the packing boxes one on top of theother since this may cause damage to the batteries.

4.1 STORAGE PERIOD

HBL batteries are supplied in DRY and UNCHARGED conditionand can be stored for a maximum period of 2 Years under shelter.

It is not recommended to store the batteries after electrolytefilling and initial charging. If stored, because of whatever reason,storage period shall not exceed 3 months @ 27 deg. C.

If storage period exceeds 3 months @ 27 deg. C, then fresheningcharge should be given as detailed in section 9.3.

It is advisable to reduce the storage interval between fresheningcharges, when there is a doubt in estimating the average ambienttemperature during storage.

Ensure that the service record is duly filled in when the batteryis given a freshening charge.


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Note: Frequency of giving equalizing charge shall be increased bytwo times for every 9 to 10 deg. C rise in operating temperature i.e.for every 1.5 months if operating temperature is 36 deg. C.

5.0 UNPACKING

Cells / batteries are packed in wooden packing boxes, which areinternally lined with shock absorbing Materials. Each battery ispacked in a separate packing box. A separate packing casecontaining accessories is provided with every battery bank.

For easy unpacking of batteries without causing damage to thecells / batteries, the following step-by-step instructions have to befollowed.

Cut the metallic strap of the packing box with the help of acutter or a plier.

Slowly turn the packing box over so as to make the packingbox sitting on its side.

With the help of chisel and hammer, open and remove thebottom of packing box.

Slowly turn the packing box so that the packing box is inupright position.

Slowly lift the packing box with the help of side planks providedon the packing box.

6.0 INSTALLATION

Install batteries on the battery stands. After ensuring that, the cellsare in perfect level, tighten the connectors securely as per the G.A.drawing using insulated tools.

Visually check that all connections have been made as per theG.A. drawing. Also check the open circuit voltage (OCV) of all thecells / batteries. Total OCV of the battery bank should be equal to

the sum of individual OCVs of all the cells / batteries.

6.1 CELL ARRANGEMENT

Before assembling, please refer the G.A drawing, for the numberof cells to be stacked and polarities.


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Lift the cells / batteries slowly and place it on the battery stand.

Care should be taken while lifting cells / batteries to avoid

slipping.

6.2 ELECTRICAL CONNECTIONS

6.2.1 Preparation of cell terminals for electrical connections

Surfaces of the terminals should be free from dust, tarnish etc.

They should be removed, if present, with dry cotton cloth. Do not

use abrasive brush or steel brush.

6.2.2 Connector installations

Polarity marks are terminals (moulded on the lid) of each cell. For

easy identification terminals top surface are coloured (Red is for

positive, Blue is for negative)

Assemble the inter cell connections, using insulated tools.

6.2.3 Inter row connections

Connect the rows using inter row flexible connectors fitted with

end cell connectors as per the General Arrangement Drawing.

Note: It is the sole responsibil i ty of the user to check the

connections. All connections should be checked at regular

intervals to ensure that the connections are clean and tight.

Never operate a battery with loose or corroded connections.

While checking connections, disconnect the battery from the

load and the charging equipment, and follow all precautions

outlined above. While installing inter cell connectors, do not

drop the cell connectors on to the terminals

6.3 ELECTROLYTE FILLING AND INITIAL CHARGING

Clean the cells, vent plugs and terminals to remove dust and any

other extraneous materials prior to proceeding for electrolyte filling

and initial charging.


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6.3.1 Preparation of electrolyte

Use battery grade sulphuric acid conforming to IS: 266 (latestissue). Refer to the "Acid mixing" table given below for makingsulphuric acid of desired specific gravity.

Concentrated sulphuric acid shall be added to distilled waterslowly with constant stirring.

While mixing, the acid temperature increases. Allow the acid tocool down to room temperature.

Stirring shall be done while taking acid for Filling

Note: To get the electrolyte of desired specific gravity, concentratedsulphuric acid should not be diluted by adding distilled wateras will lead to accidents (may result in explosion).

6.3.2 Electrolyte filling

Remove the vent plugs and fill with the electrolyte until the floatguide touches the green mark in transparent indicator.

Quantity and specific gravity of electrolyte used for filling of newcells / batteries shall be as specified in the following table:

Note:Above stated specific gravities are applicable for an operating

temperature of 27 deg. C. If, temperature varies from 27deg.

C, electrolyte specific gravity to be used for filling shall be

arrived with the following empirical formula:

S.G.T = S.G 27 / (1+0.00007 x (T-27))

Where

S.G.T = Specific gravity of electrolyte at an operating temperature

of T deg. C

S.G 27 = Specific gravity of electrolyte at 27 deg. C

T = Operating temperature in T deg. C

Type of battery Electrolyte specific gravity Quantity of electrolyte to be filled

NDP series

HDP series

SPV series

1.1800.005@27 deg.C

1.1800.005@27 deg.C

1.2200.005@27 deg.C

Refer the GA drawing

-do-

-do-


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After electrolyte filling, the cells / batteries shall be allowed tobe under rest for 12 to 24 hrs

After completion of the rest period, if level indicator falls belowthe lower level in transparent indicator, it should be adjusted byadding some more electrolyte of same specific gravity used forfilling prior to proceeding for charging.

7.0 PREFERED FACILITIES FOR TREATMENT / FOR

INSTALLATION & OPERATION OF LOW MAINTENECE

LEAD ACID BATTERIES

Battery room shall have adequate ventilation (Preferably inground floor for easy handling of cells / batteries)

Flooring shall be lined with acid resistant tiles

Chargers of appropriate ratings required for initial charging andsubsequent charging with voltage & current selection (ReferSection 8.0 for guidelines related to charger / power plant).

Calibrated Digital ammeter, Digi tal Voltmeter, Digi talThermometer and Hydrometer

Sulphuric acid used for electrolyte preparation shall be of batterygrade and shall conform with the requirements of IS: 266specification (latest issue).

Distilled water used for diluting sulphuric acid (during electrolytepreparation) and topping up for adjusting the electrolyte levelwhile the battery is under operation shall conform with therequirements of IS: 1069 specification (latest issue).

Material handling equipment - Trolleys / Fork lift

Insulated tools (Spanners, L-Handles, Torque wrenches etc.)

Safety tools like Rubber boots, Rubber Apron, Rubber Gloves,Syringe & Spectacles Forced water for cleaning battery.

8.0 POWER PLANT COMPATIBILITY / SELECTION OF

CHARGER

8.1 CONSTANT CURRENT CHARGER

Constant current charger with charge current required for thebatteries have to be selected Based on the:


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Number of Cells / batteries required to be charged per cyclebased on the operation demands

The charger voltage to be considered 3V per cell ( e.g. If thenumber of 2V cells to be charged is 60 nos, the charger to becapable attaining 180 Volts)

Charger current rating 10 to 15 % extra than the current valuesgiven in table in order to avoid operating the charger at full load

Ripple content shall be kept to minimum (Preferably less than3%)

Built in resistive load for discharge can be considered or Loadbanks can be used for discharge

8.2 CONSTANT VOLTAGE / POTENTIAL CHARGER

Constant voltage power plants, which have the following features:

Individual voltage settings in Float, Boost and Equalizingcharging modes

Auto change over facility from Float to Boost and vice versa

Should have temperature compensation circuit (for adjusting thecharge voltage based on battery temperature).

Should have the provision to set the Battery path current limitand it should be adjustable in between 10-20% of Battery Ahcapacity.

Output voltage should be stable with a regulation of + 0.1 Vconsidering the fluctuations in load & mains supply.

Should have calibrated measuring instruments.

Ripple should be less than 3% RMS.

Provision of Low Voltage disconnect/indication/alarm to isolatethe battery

Voltage feed back sensors shall be drawn from:

- For controlling charge voltage: Should be directly taken frombattery terminals.

- For low voltage disconnect: Should be taken from the bus barof the power plant.


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8.3 INSTALLATION OF CHARGER

Charger to be protected against acid attack by providing partition

between battery charging and charger

The distance between the charger and battery under charge to

be kept minimum to avoid loss of energy and proper charging of

cells/batteries

9.0 CHARGING

9.1 INITIAL CHARGING

DC charger having ripple < 3 % of RMS shall only be used for

charging.

Please remove vent plugs and float guide during initial charging,

initial cycling to avoid the container bulging due to the excess

gas generation.

Connect the cables from the battery charger to the end terminals

of the battery system with correct polarity i.e. charger's positive

to battery positive and charger's negative to battery negative.

Measure and record the open circuit voltage (OCV) of all thecells / batteries. Total OCV of the battery should be equal to the

sum of individual OCV's of all the cells / batteries.

For cells / batteries made and supplied with unformed plates:

Measure and record the cell voltages within a maximum period

of 15 minutes after starting the charging. Ensure that, cell /

battery voltages are measured with correct polarity i.e. by

connecting positive probe of multimeter on to cell's/battery's

positive terminal and vice versa.

Check, if there are any cells / batteries connected in series with

reverse polarity. If, observed correct the connections and resume

the charging.

During charging, voltage, specific gravity and electrolyte

temperature of each cell / battery shall be measured and

recorded once in 4 hours until cell / battery voltage reaches up

to 2.40 V/cell and there after for every 1 hour.


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DescriptionNDP series

batteriesHDP series

batteriesSPV seriesbatteries

Starting rate of charging (% ofbattery capacity)

10 % 12 % 10 %

Finishing rate of charging - Cells/ batter ies shall be charged atthis rate after their voltagereached to 2.400 V/cell (% of

battery capacity)

5 % 6 % 5 %

Charge voltage at the end ofcharging - Indicates that the cell/ battery is fully charged

2.60 to 2.70 V/cell

Specific gravity of electrolyte atthe end of charging - Indicatesthat the cell / battery is fullycharged

1.200 +/- 0.0051.240 +/-

0.005

Electrolyte temperature duringformation charge shall notexceed

50C

Charge input (% of batterycapacity)

For cells / batteries made withunformed plates

550 %minimum

660 %minimum

550 %minimum

For cells / batteries made withpartially formed plates

300 % minimum

The cells / batteries are said to be fully charged when cell /battery voltage and specific gravity values remain constant (withminimal variation, Voltage: +/- 0.010 V and Specific gravity +/-0.005) in 3 consecutive hourly readings.

If electrolyte temperature of the cell / battery rises above 50C,charging should be stopped and cells / batteries shall be allowedto be under rest until the electrolyte temperature comes downto 35C there after charging shall be resumed.

Throughout the initial charging, electrolyte level shall bemaintained up to the maximum mark. If electrolyte level fallsbelow the maximum mark it should be adjusted by adding the

electrolyte having specific gravity same as that is used for initialfilling.

At the end of charge, the electrolyte specific gravity shall be adjustedto the value specified in the following table:


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9.2 CATEGORISATION OF APPLICATIONS

Based on duty cycle applications are broadly classified into the

following 3 categories:

9.2.1 Float application

An application is said to be Float, when cells / batteries are

subjected to 3 to 5 discharges (of any DOD - Depth of discharge)

in a span of 1 year. OR Cells / batteries shall be on continuous

charge for a minimum period of 15 days between two successive

discharges (of any DOD - Depth of discharge).

9.2.2 Cyclic application

An application is said to be Cyclic, when cells / batteries are

subjected to more than 1 discharge (of any DOD - Depth of

discharge) in a span of 24 hrs.

9.2.3 Shallow cycling application

An application is said to be Shallow cycling, when cells / batteries

are subjected to prolonged discharges where discharge durations

will be in between 24 hrs to 120 hrs.

Generally these applications fall under Solar Photo Voltaic

applications. These applications also include the conditions like

deep discharging and partial state of charge operation since time

available for recharge is very short and at no point of time battery

attains 100 % state of charge during normal operation.

9.3 FRESHENING CHARGE

If cells/batteries are stored after completion of initial charging / after

certain usage period, freshening charge shall be given for every 3

months (while the cells / batteries are stored at 27 deg. C) as perthe procedure given below:

For cells / batteries used with constant current chargers:

o Charge the cells / batteries at a current of 0.05 C for 6 hrs.


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o Voltage of the cells on charge shall be reaching to 2.600 - 2.700

V at the end of this charging and specific gravities shall be 1.200

+/- 0.005 and 1.240 +/- 0.005 for NDP / HDP and SPV series

batteries respectively.

o If cell voltages & electrolyte specific gravities did not reach to

the values specified, continue to charge the battery at the same

current until voltage & s.g. values are achieved.

For cells / batteries used with constant voltage chargers:

o Charge the cells / batteries at 2.400 V, 0.1 C current limit for 24

hrs.

o Electrolyte specific gravities of the cells / batteries shall be 1.200

+/- 0.005 and 1.240 +/- 0.005 for NDP / HDP and SPV series

batteries respectively.

o If electrolyte specific gravities did not reach to the values

specified, continue to charge the battery with the same voltage

until s.g. values are achieved.

9.4 NORMAL / ROUTINE CHARGING

Recharge the cells at 10 % current for NDP & SPV series cells and

12 % current for HDP series cell until cell voltage reaches to 2.400

V/cell. There after charge the cells at a current half of the initial

value i.e. 5 % for NDP / SPV series cells and 6 % for HDP series

cells until cell voltage reached to 2.600 - 2.700 V/cell.

Normal / routine charging method that is to be adopted for day- to-

day usage is to be selected based on type of application. This can

be done either in Constant current mode or Constant voltage mode.

Since the batteries are of low maintenance type where there is a

provision for compensating the water lost during charging, these

cells / batteries can be charged both in Constant current mode and

Constant voltage / potential mode.

Prior to starting of charging of the battery, ensure that all the

connections (inter cell connections and out put connections) are

firm and tight. This is to avoid possible sparks and melting of

terminals.


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9.4.1 Constant current charging

Charger used for this purpose shall be of constant current typehaving ripple content in output DC less than 3 % of RMS.

The chargers should have provision for adjusting the chargecurrent.

Charging should be done with the following currents:

o Cells / batteries of NDP series: Charge at a current of 10 % of

battery capacity until cell voltage reaches to 2.400 V/cell andthere after at a current of 5 % until cell voltage reached to 2.600- 2.700 V/cell.

o Cells / batteries of HDP series: Charge at a current of 12 % ofbattery capacity until cell voltage reaches to 2.400 V/cell andthere after at a current of 6 % until cell voltage reached to 2.600- 2.700 V/cell.

o Cells / batteries of SPV series: Charge at a current of 5 % ofbattery capacity until cell voltage reaches to 2.600 - 2.700 V/cell.

Note: For all types of batteries, it shall be ensured that input onrecharge shall be minimum 110 % capacity drained inprevious discharge. Also, it is important to charge the batteryimmediately after every discharge and maintain the batteryin fully charged condition.

9.4.2 Constant voltage / potential charging

Charger used for this purpose shall be of constant voltage /potential type having ripple content in output DC less than 3 %of RMS.

The chargers should have provision for adjusting both the chargevoltage and charge current.

Charging should be done with the following voltage & currentsettings:


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Type ofapplication

Type ofcharging

recommended

Recommended charge settings

NDP series HDP series SPV series

Float Float2.15 - 2.20 V/

cell, 10 %current

2.15 - 2.20 V/cell& 12 % current

Notapplicable

Cyclic Boost2.40 V/cell,10 to 20 %

current

2.40 V/cell,12 to 24 %

current

Notapplicable

Shallowcycling Boost Not applicable Not applicable 2.40 V/cell &5 % current

9.5 EQUALIZING CHARGING

9.5.1 Need for giving equalizing charge

Variations among the cells (float voltages, on-load voltages and

electrolyte specific gravities) will increase over a period of time

while they are under usage. To safe guard the cells / batteries

from premature failure and improve system reliability equalizing

charge should be given at regular intervals when any of thefollowing is observed:

When the difference between maximum and minimum float

voltage / on-load voltages (at the end of discharge) of individual

cell voltage is more than 0.100 V.

When the difference between maximum and minimum value

of specific gravities of individual cells is higher than 0.020.

At regular intervals based on type of application under which

batteries are used irrespective of float / on-load voltages and

electrolyte specific gravities of individual cells:

Type of application

Float

Cyclic / Shallow discharge

Frequency of giving equalizing charge

For every 6 months

For every 3 months


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Note:

In case of shallow discharge applications, equalizing chargehelps in raising the charge level of the battery (there byminimizing the effect of PSOC on life of the battery) in additionto minimizing cell-to-cell variations.

If required, equalizing charge shall be given more frequently(than the frequency given in the above table) if variation amongabove-stated parameters of individual cells are crossing thespecified limits.

Equalizing charge shall be started when battery is said to be infully charged condition as per the normal procedure.

9.5.2 Procedure for giving equalizing charge

9.5.2.1 For batteries used with constant current chargers:

a) NDP series:

Charge @ 5 % current until voltages of all cells reaches to 2.600to 2.700 V.

While the battery is under charging, adjust the specific gravityof electrolyte to 1.200 +/- 0.005 by adding distilled water.

Minimum input that is to be given during equalizing charge shall

be 50 % of battery rated capacity.

b) HDP series:

Charge @ 6 % current until voltages of all cells reaches to 2.600to 2.700 V.


Minimum input that is to be given during equalizing charge shallbe 50 % of battery rated capacity

c) SPV series:

Charge @ 5 % current until voltages of all cells reaches to 2.600

to 2.700 V.


Minimum input that is to be given during equalizing charge shallbe 50 % of battery rated capacity


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9.5.2.2 For batteries used with constant voltage / potential chargers:

NDP / HDP series:

Charge @ 2.500 V/cell, 10 % current for a minimum period of16 hrs

SPV series:

Charge @ 2.550 V/cell, 10 % current for a minimum period of16 hrs

9.5.2.3 Conducting a full discharge there by recharge

If there is a provision for discharging all the cells, then this methodalso can be employed.

Discharge the cells @ 10 % current until all cells reaches to1.850 V/cell. Bypass the cells those are reaching to 1.850 Vfaster.

Adjust the electrolyte specific gravity by adding distilled waterto 1.200 +/- 0.005 and 1.240 +/- 0.005 for NDP / HDP and SPVseries cells respectively while the cells are under charging withlow current i.e. in 2nd phase.

Note: Observe for variation in on-load voltages by conducting one

more test discharge @ 10 % load after giving equalling chargewith any of the above-detailed methods. If variations are stillexceeding the acceptable limits, then repeat the equalizingcharge for 2 more times. Even after 3 cycles (total), ifvariations are not falling within the specified limits consultHBL for guidance.

9.6 CHARGING AT MAINTENANCE YARDS

Use constant current battery charger having ripple less than 3 %.The chargers should have provision to adjust the charging current.

Ensure that the all the connections (inter cell & out put cable) are

firm & tight prior to starting the charging of cell/ battery to avoidsparks and melting of terminals.

Cells / batteries shall be charged fully following procedure detailedin above sections. It is important to charge the battery immediatelyafter every discharge and maintain the battery in fully chargedcondition.


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10.0 PERFORMANCE OF BATTERIES

10.1 ACCEPTANCE TEST / CAPACITY TEST AT 10 HOUR RATE

Freshening charge shall be given to the cells/batteries followingthe procedure detailed in Section 9.3 prior to conductingdischarge test

After standing on open circuit for 12 to 24 hours from the time ofcompletion of full charge, the cells / batteries are to be subjectedto capacity test at a constant discharge current of I=0.1 x C10amperes (E.g.: A 200Ah cell shall be discharged at a current of20 Amps). Measure and record the voltage, electrolyte sp.gr. &temperature of each cell at hourly intervals from the beginningof the discharge to end of discharge i.e. until cell voltage reachedto 1.85 V/cell.

Calculate the capacity in Ah delivered by the battery bymultiplying the discharge duration obtained and dischargecurrent. Capacity obtained at test temperature shall be correctedto 27 deg. C by using the following empirical formula:

C27 = CT x (1+ R x (27-T))WhereCT = Obtained capacity at an operating temperature of T deg. CC27 = Capacity corrected to 27 deg. CR = ROD factor - 0.43 for 10 hr discharge rateT = Electrolyte temperature in T deg. C

It is recommended to conduct 2 to 3 charge / discharge cyclesbefore battery is put on operation.

Battery shall be recharged as per the procedure detailed inSection 9.5.2.3.

10.2 EFFECT OF TEMPERATURE

Lead acid battery is an electrochemical device and is sensitive totemperature variations. Higher temperature accelerates chemical

activity and lower temperature slows it down, and hence cells/batteries will give higher capacity and vice versa. Operating athigher temperatures may give higher capacity momentarily but itwill lead to premature failures and there by shortens the life of thebattery. So, for optimum performance and life, it is recommendedto use the battery in environment having temperature close to 27C.


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Discharge rate (Hrs)

ROD factor, R

Discharge rate (Hrs)

ROD factor, R

120 72 48 20 10 8

0.43 0.47

6 5 4 3 2 1

0.54 0.58 0.62 0.68 0.90 0.98

In general battery which is operated in a cool environment(temperatures up to 10C) will last longer than the one which isoperated in hot environment. Low temperature operation will resultin low available output capacity. Temperatures below 10C will alsoreduce the battery life.

Capacity that battery can deliver at different operating temperatures:

Capacity that battery can deliver varies with the operatingtemperature. For estimating the battery capacity at temperaturesother than 27 C, following empirical formula to be used:

Capacity at T, CT = C27 / (1 + (R x (27-T) /100))

WhereCT = Capacity that battery can deliver at a temperature t CC27 = Capacity corrected to 27 deg. CR = Rate of discharge (ROD) factor (Shall be chosen from thetable given below)T = Average room temperature in CRate of discharge (ROD) factors for different rates of discharges:

Note: The above empirical formula is valid for the operatingtemperatures ranging from 15 to 55 C. Contact HBL forinformation on battery capacity at temperatures less than 15.

Temperature correction is not required for the charge voltage (ifused with constant voltage chargers) when operating at 27C. Ifthe operating temperature varies from 27C, charge voltage shallbe increased by 3 mV for every 10C fall in temperature and viceversa.

Applying temperature correction to charge voltage will reduce thegassing levels at higher temperatures there by lower the water loss(topping up frequency will be low) by keeping the battery in fully

charged condition. For further details related to temperaturecorrection factors, contact our nearest branch office.

Exercise caution while operating or storing batteries at very lowtemperatures as there is a possibility of electrolyte freezing.

Temperature compensation will improve the battery service lifewhen strictly followed.


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10.2 MONITORING OF BATTERIES

10.2.1 BATTERY MAINTENANCE

Inspection & record

The cells/batteries should not be subjected to over charge and at

the same time, it should be ensured that they receive full charge

after every discharge. Otherwise, battery would not be a reliable

source of power in case of emergency.

Batteries shall be monitored at regular intervals (monthly, quarterly,

half yearly and annually) in addition to any other attention that the

user may desire to give.

Conducting routine maintenance checks as per the schedule

planned and maintaining the records of both battery and its charging

equipment would help in detecting abnormalities if any so that

necessary corrective / preventive measures can be taken in time

to avoid system failure.

Micro porous vent plugs and level indicators shall always be kept

in place with tight fitting while in service operation to avoid waterloss through evaporation.

Monthly inspection

o Select the pilot cells (one cell for every 6 cells) in a set, which

are considered to represent the characteristics of other cells in

the system. Change the pilot cells every month on rotation basis,

so that all the cells are covered in a year.

o Check the integrity of connections (inter cell connectors and

out put cables). Also, all connections shall be cleaned if dust

accumulation is observed.

o Check for any corroded connectors, if observed clean them

thoroughly and apply petroleum gelly on terminal bolts. In worst

case, replace the corroded components.


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o Record open circuit voltage for pilot cells. Verify state of charge

(SOC) with voltage of pilot cells and take necessary action if

SOC is observed to be low.

o Measure and record the on-load voltages of all the cells (after a

minimum period of 15 min from the time battery is put on

discharge) while the battery is loaded / discharged with site load.

o Check the voltage & current settings on charger, correct if any

deviations are observed.

o Check for any dust accumulation on cell cover, vent plug ifobserved, clean it thoroughly.

o Check the tightness / firmness of vent plug.

o Check for any broken container or cover. Remove and replace

with good one, as it will damage the battery stand.

Half-yearly Inspection

o Verify the monthly inspection reports.

o Check the level of electrolyte of each cell in the system. If any

cell showing the float level above RED MARK or less, top up

with distilled water up to green mark. Record the quantity ofwater topped up to each cell.

o Check the condition of vent plug. Replace if it is broken.

o Check for the proper functioning and accuracy of measuring

instruments (Ammeter and Voltmeter). Replace with calibrated

instruments if not satisfactory.

o Check the open circuit voltage & electrolyte specific gravity of

each cell and ascertain the state of charge of the battery referring

the tables / graphs given below.

o Give equalizing charge as detailed above.

Note: For adjusting the electrolyte levels, distilled water shall only

be added to the cells/batteries but not the normal water /

packaged drinking water.


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Annual Inspection

o Remove the cells from the battery stands and bring them to

battery shop for attention.

o Clean the acid traces if any on out side surface of the cells after

fitting the plugs.

o Follow special maintenance instructions for revival of cells /

batteries suffering from undercharging due to frequent deep

discharges, improper charging and not giving equalizing charge

as and when required.

o Test for capacity at 10 hr discharge rate. If capacity of any cell/

battery is observed to be less than 80 % of rated value, then

subject them to revival exercise. Even after revival, if capacity

is observed to be less than 80% of the rated value, replace them.

o Recharge the battery following the applicable procedure detailed

in Section 9.5.2.3

o Clean all the ventplugs in warm DI water to remove the dust

accumulated on ventplugs.

Inspection

If battery failure or other difficulty is reported, conduct the following

checks and tests in sequence:

o Measure the total voltage of battery on open circuit and under

load. If it is normal, then problem must be with some other

equipment.

o Check all battery connections to ensure that they are clean and

tight.

o Measure and record the voltage of all cells in the system. If,

voltage of all the cells is low, it indicates that the battery is either

deep discharged or it is not receiving sufficient charge due tothe problems with charging equipment. In either cases, recharge

the battery with alternative power plant / charger without any

delay. Locate the cause of deep discharge / undercharge and

take necessary corrective & preventive measures.


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o If voltage of one or more cells is observed to be relatively low,

check for electrolyte level and specific gravity of the same and

adjust if the values are deviating from normal range. Give

equalizing charge following the procedure detailed in Section

9.5 If cells did not improve even after giving equalizing charge,

then replace them.

o The Performance of the batteries shall be monitored during

operation at regular intervals for various parameters detailed

above in order to detect and correct abnormalities, if any.

o Maintain records of all parameters (float voltages, on-load

voltages, electrolyte s.g., etc.) monitored at various intervalsusing the service record formats, and send a copy of the same

to M/s HBL for monitoring the performance of the battery. Failure

to maintain service record will invalidate the warranty of the

battery.

Note: Instruments used for testing shall be duly calibrated and shall

have the accuracy & least count specified below:

Instrument

Digital volt meter / Multimeter

Digital Ammeter / Clamp meterTemperature indicator / Thermometer

Hydrometer

Accuracy

0.5 %

1.0 % 1 deg. C

0.01 points

Least count

1 mV

0.1 A1 deg. C

0.01

10.2.2 State of charge (SOC) of the battery

The state of charge (SOC) for low maintenance lead acid batteriescan be predicted roughly through electrolytes specific gravitymeasurements using the following table

State of charge(SOC)

Electrolyte Specific gravity

NDP series HDP series SPV series100 %

75 %

50 %

25 %

1.200

1.193

1.182

1.160

1.240

1.210

1.170

1.130


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11.0 DO's AND DON'TS

11.1 DO'S

Read this manual carefully before putting the battery on usage

/ working on batteries.

Unload the batteries carefully and place them as recommended.

Store the batteries in a cool and dry location.

When the battery is not in use, keep it in a cool place.

Monitor the charging voltages of the power plant / charger at

regular intervals.

Check the tightness of all electrical connections at monthly

intervals.

After discharge, recharge the battery without much delay (delay

should not be more than 3 hrs).

Maintain service records, which helps in trending / analysing

the battery health while it is under usage.

Clean the dust and dirt at vent plug cover, terminals and

surrounding area with clean and dry cotton / cloth.

Use only flexible copper cables of required size from power plant

/ charger for charging the battery.

Ensure that connections are made with correct polarity while

connecting the battery on to charging. If charged with reverse

connections it acts as a short circuit for the charger and also

cells/batteries will suffer from irreversible damage.

Contact HBL for further help and guidance.


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11.2 DON'TS

Never place the cells nearer to fire.

Do not connect or disconnect any cell without switching off theload & charger.

Do not expose the battery to (hostile) hot environment.

Do not store the Charged batteries for longer periods withoutgiving freshening charge at regular intervals.

Do not short the terminals of the cells / battery.

Do not over-tighten the nuts/bolts while giving connections.

Do not mix batteries of different types or makes. Do not mix low maintenance lead acid cells with VRLA cells or

vice versa.

Do not make intermediate / tap connections from battery.

Do not charge two or more sets of batteries (of same capacities/ different capacit ies / different types / makes) connected inparallel.

Do not connect extra load (over and above specified) on to thebattery.

Never discharge cells below 1.85 V/cell.

Do not add acid during for adjusting the electrolyte level. Onlywater is lost during battery operation, so add only distilled waterto adjust the electrolyte level.

12.0 PRODUCT WARRANTY

12.1 WARRANTY

HBL gives a warranty to the user that the Low maintenance leadacid Batteries are free from defects in material and workmanshipfor a period of 12 months from date of installation or 18 monthsfrom the date of shipment, whichever is earlier. This warranty isapplicable for the cased where battery is operated at 10 hr dischargerate, Depth of discharge < 80 %, 27 deg. C and charged as permanufacturer's recommendations. Warranty period will vary basedon operating conditions of the application (Operating temperature,Depth of discharge, Rate of discharge, Available charge settingsin power plant). Consult HBL for warranty period specific toapplication.


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HBL must be notified immediately upon detection of any defects

and HBL has the authority to inspect any questionable sites. If HBL

determines the batteries to be defective due to material or

workmanship, it will repair or replace them at its own option.

12.2 EXCLUSIONS AND LIMITATIONS

Warranty does not cover physical damage due to the acts of

nature or man, which stress the battery beyond design limits

and exert undesirable influence, which enhance normal wear

and tear.

Warranty will cease if the units are opened or tampered with, or

an attempt is made to repair the battery by any person other

than the manufacturer's authorised representative.

HBL will not be responsible for any work accomplished or

expenses incurred except with expressed written consent from

HBL.

HBL shall not be liable for indirect, incidental or consequential

damages arising out of the sale or relating to the use of thisproduct, and the purchaser assumes responsible for all personal

injury and property damage resulted during handling, possession

or use of the product.

In no event shall the liability of HBL, for any and all claims;

including claims of breech of warranty or negligence, exceed

the purchase price of the product.

The above warranty is in lieu of all other remedies, including

actions. For contract or negligence (incomplete sentence). All

other warranties expressed or implied including but not limited

to the warranties of merchantability and fitness for a particular

purpose are hereby excluded.

User shall not return the batteries to HBL without prior

information.


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12.3 WARRANTY CONDITIONS

The Low Maintenance Lead Acid Batteries are warranted against

material & manufacturing defects for a period of 12 months from

the date of installation or 18 months from the date of dispatch,

whichever is earlier. This warranty limits the purchaser remedy

for the repair or replacement of a defective battery or parts

thereof due to manufacturing defects. The right to determine

whether a battery or cell needs to be repaired / replaced or not

lies with the manufacturer.

Warranty period will vary based on operating conditions of the

application (Operating temperature, Depth of discharge, Rate

of discharge, Available charge settings in power plant). Consult

HBL for warranty period specific to application.

Warranty is null and void for those charged batteries which have

been stored for more than 6 months without giving a freshening

charge or when the cell / battery have been tampered with.

Warranty claims will not be entertained, if the operating

instructions are not strictly adhered to.

Warranty will not be entertained, if an attempt is made to repair

the battery by any person other than the HBL authorized

representative.

Warranty is applicable only for those batteries for which the

Service records are maintained as per the guidelines given in

this booklet.

Warranty will cease for the batteries or cells damaged during

transit unless the local representatives of manufacturer to

informed within 7 days from the date of receipt of the damaged

consignment.

Warranty claims will not be entertained if transit damages are

notified after storage period.

Litigation arising out of any transaction with the company is

subjected solely to Hyderabad jurisdiction.


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13.0 MAINTENANCE

13.1 CHECK LIST

Check RequirementImpact if not followed /

maintained

Accumulation of dust &acid spillages on Cell /Battery surface

Cell / Battery surface shall bekept clean, dry and tidy

Self-discharge will be higher in casebattery is under storage. Acts as apath for leakage voltage there bychances of getting electrical shockin high voltage systems

Condition of container

and sealing compound

There shall be no cracks in

cel l / bat tery container / sealing compound.

Having cracks in container / sealing

compound may lead to acidleakages / spillage, which in turnresults in performance degradationand untidy environment.

Integr i ty of a l lconnect ions in thebat tery system andcleanl iness of theterminals

All connections (inter cell andout put) shall tight and firm.Terminals shall be cleanedand coated with petroleumgelly.

Presence of loose connections willlead to sparking. Not cleaning theterminals / applying petroleum gellymay lead to corrosion.

Venting holes of the ventplugs

Shall be clean and there shallbe no blockings

Deterioration of cell condition and inworst case it may lead to cell /battery explosion

28

13.2 GUIDE LINES FOR TOPPING UP WITH DI / DM WATER DURINGSERVICE OPERATION

HBL's low maintenance lead acid batteries require periodic topping

up on a reduced scale compared to conventional lead acid batteries.

Each cell of the battery is provided with electrolyte level indicators,

which serves as a visual aid for knowing the level of electrolyte

inside the cell. Markings are provided on top of transparent tube

with Green and Red to indicate the electrolyte level.

The float travels inside the transparent tube showing the level of

electrolyte. Micro porous vent plugs are provided in each cell to

minimize water loss, which allows only gasses to escape.

Lead acid battery looses water due to over charging (which drives

the battery into heavy gassing mode due higher electrolysis) and

through evaporation when battery is operated at higher

temperatures.


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The loss of water in HBL's low maintenance lead battery was

ascertained through extensive tests. Results indicate that topping

up is required ONCE IN > 6 MONTHS while it is continuously over

charged @ 2.400 V/cell and 50 deg. C. In actual operating

conditions, such continuous over charging will not be present (the

batteries under goes charge / discharge cycles) as and hence the

topping up frequency will be further low.

Above explanation on reasons for water loss & how it is being

reduced in our design may not be required for the user. We shall

detail on when & how to top up.

HBL recommends to top up with distilled water once in 6 months or

whenever the float guide reaches close to RED MARK in order to

avoid to increase in specific gravity of electrolyte due to evaporation

of water, which will affect the life of the battery.

Prior to topping up with distilled water, charge status of cells shall

be verified with by voltage and specific gravity measurements.

Measure and record the voltage & s.g. values prior to topping up.

Topping up is to be done while the battery is in fully charged

condition. Indication for battery being in fully charged condition is

as follows:

For batteries used with constant current chargers: Cell voltage

on charge shall be in the range of 2.600 - 2.700 V/cell.

For batteries used with constant voltage chargers: Current drawn

by the battery shall be stabilised at low current and variation in

3 hourly readings shall be less than 5 %.

While the battery is in fully charged condition, electrolyte specific

gravity will reach to the maximum possible value and under this

condition add distilled water until the float guide in level indicator

touches the GEEN / MAXIMUM mark.

After topping up with distilled water, cells shall be overcharged for

minimum 6 hrs to enable proper mixing of electrolyte through

gassing there after electrolyte specific gravity shall be measured

and recorded. Measured s.g. Shall be in the range specified for

each type of battery.


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13.3 SYMPTOMS OF BATTERY FAILURE, PROBABLE CAUSESAND REMEDIES

Symptom Probable causesCorrective / Preventive

actionsElectrolyte speci f ic gravi ty isincreasing in less time span while

the batteries are on float charge

- F loat charge voltage set is high- Error in measuring instruments

(Voltmeter)

- Adjust the charge voltage tothe specified value.

- Correct the voltmeter's error if

any

Progressive decline in value of

specific gravity while the battery ison float charge

- Float charge voltage set is low

- Error in measuring instruments(Voltmeter)

- Adjust the charge voltage to

the specified value.- Correct the voltmeter's error if

any

Cell getting discharged - Leakage paths must be present

due to dust accumulation /

electrolyte spillage or leakage.

- Cell / battery surface shall becleaned with (Na2Co3) washingsoda thoroughly to eliminate

leakage paths.Rapid fall in on-load voltage of cell

/ batter y during discharge

- Loose connection or corroded

terminals must be present which

causes higher voltage drop

- Make all connections firm and

tight

- Clean corroded terminal partswith dilute alkaline solution and

water there after with dry cloth

and apply petroleum jelly

Electrolyte level is falling below the

minimum level within a short period

- Leakage of electrolyte through

cracked container

- Higher water loss due to

charging at higher float voltage

- If cracks are present on battery

container where leakage cannot

be arrested, replace the

container / battery- Adjust the charge voltage to

the specified value and correct

voltmeter's error if any

Low open circuit voltage and lowcapacity in spite of giving full

charge, Low electrolyte specific

gravity

- Cell / battery must be sufferingfrom undercharging

- Cell / battery must be suffering

from internal shorts

- Conduct the revival activityfollowing the guidelines detailed

in Section 14.0 -

If problem continue to existeven after conducting revivalactivity replace the cell.

Excessive gassing - Cells / batteries must be on

charging at higher voltage that

the specified.- Sulphat ion due to low

electrolyte level / frequent deep

discharges / under- Topping up with di luted

sulphuric acid to adjust the

electrolyte level.

- Adjust the charge voltage to

the specified value and correct

voltmeter's error if any- Adjust the electrolyte level and

conduct revival activity to solve

the sulphation problem.- To adjust the electrolyte level,

topping up shall be done with

distilled water but not dilutedsulphuric acid.

Electrolyte is overflowing from the

cell / battery

- Electrolyte level must be above

the maximum level

- Adjust the electrolyte level

such that it doesn't go above

maximum mark

Reverse polarity in cel ls - Cel l / batt ery must have grownweaker because of not giving

equalizing charge at regular

intervals.- Cel ls / batter ies must be

subjected to f requent deep

discharges.

- Equalizing charge shall begiven at regular intervals

following the guidelines given in

Section 9.5- Conduct the revival activity

following the guidelines detailed

in Section 14.0. If there is noimprovement, replace the cell /

battery.

30


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14.0 SPECIAL MAINTENANCE INSTRUCTIONS

14.1 REVIVING CELLS WITH LOW VOLTAGE & LOW SPECIFICGRAVITY

One among the reasons for low voltage and low specific gravityis improper and initial charging. User shall follow the instructionsgiven by the supplier for initial filling of electrolyte and charging.Even after complete duration of charge, if any cell voltage isshowing less than 2.550 V, such cells should not be put intoservice and it shall be informed to the supplier.

During service, if cell open circuit voltage is found less than1.980 V, then discharge the cell at C10 rate till end cell voltageof 1.850 V (for NDP / HDP / SPV series batteries) / 1.850 V (forSPV series batteries) and then recharge following the guidelinesgiven in Section 9.5.2.3.

After completion of normal charging, equalizing charge shall begiven following the guidelines given in Section 9.5

If the cell does not give rated capacity in 10 hr discharge test, itshall be repeated for one more cycle.

It shall be ensured that specific gravity of electrolyte falls in tothe normal range at the end of charging. If deviations are

observed it shall be adjusted by adding distilled water.

In spite of completing the above exercise, if voltage of few cellsis still low, then they shall be boost charged with cell boosters.If improvement is not observed, they shall be replaced.

If cells are stored for more than one month in fully chargedcondition then freshening charge shall be given following theprocedure given in Section 9.3.

14.2 REVIVING A DEAD CELL

This happens when plates are heavily sulphated. It may be due to

continuous undercharging or storing the cells in dischargedcondition for prolonged periods.

Drain out the electrolyte from the cell.

Fill the cell/battery with distilled water and allow the cells /batteries to be under rest for 2 to 4 hours.


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Charge the cell with a current 5 % of rated capacity until cellvoltage reaches to 2.300 - 2.400 V/cell. Please be noted that,

voltage will not increase further as the electrolyte is weak (more

diluted / less specific gravity).

Dump the electrolyte completely after completion of above

charging and fill with the fresh electrolyte having gravity specific

to each type of battery pertaining to 100 % state of charge (for

NDP / HDP series cells / batteries - 1.200 +/- 0.005 and for SPV

series cells / batteries - 1.240 +/- 0.005).

Charge the battery following the procedure detailed in Section

9.5.2 Check the specific gravity of electrolyte at the end of

charging and adjust it to the value specified above (if SG is lowadd the electrolyte of 1.400 specific gravity and if it is high add

distilled water) and continue charging for two hours to enable

proper mixing of electrolyte.

Conduct C10 discharge, if cell does not give desired capacity

(minimum capacity that battery shall deliver to put into service

is 80 % of rated value) cell/battery shall be discarded.

14.3 REVIVAL OF A CELL THAT HAS ATTAINED REVERSE

POLARITY

This happens when the battery is discharged deeply below ZEROvolts. If such deep discharge occurs repeatedly / number of times

battery will attain reverse polarity (show negative voltage). These

batteries should be taken out for revival action immediately. Any

delay will reduce the possibility of revival.

Following remedial actions are recommended for revival of cells /

batteries suffering from reverse polarity:

Drain out the electrolyte from the cell/battery.

Rinse the cell/battery with distilled water for 3 to 5 times and

shall be dried.

Fill the cell with distilled water and allow the cells / batteries to

be under rest for 2 to 4 hours.

Follow the procedure detailed in the above section / Section

14.2.

Consult HBL for clarifications & guidance.


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SPECIFIC GRAVITY CORRECTION CHART

Specific Gravity Correction factors:

For every 1C above 27C subtract 0.0007 from the value recordedin the hydrometer. For every 1C below 27C, add 0.0007 from thevalue recorded in the hydrometer. The following is an examplehow the correction factor is applied.

Temperature Hydrometer Correction Corrected of acid Reading Factor Sp.Gr 37C 1.25 -0.007 1.243 27C 1.25 0.0 1.250

17C 1.25 +0.007 1.257

Electrolyte Preparation:

Battery Grade sulphuric acid is usually available in 1.800 or 1.400Sp.gr. concentration. To change the sp.gr. to another value , it isnecessary to mix it slowly with distilled water, to obtain the desiredspecific gravity.

Caution:

1. Store sulphuric acid only in plastic or lead containers.

2. Add acid slowly to DI water while mixing, especially when usinghigh gravity acid. Never add water to acid.

3. Always wear goggles, rubber gloves and apron while handlingacid. Be extremely not to spill or splash acid.

ACID MIXING CHART

When Mixing By Volume(Litre) Using 1.800 Acid

When mixing By Volume(Litre) Using 1.400 Acid Desired Specific

gravity at 27CDistilled Water Required toone part acid

Distilled Water Requiredto one part acid

2.802.903.003.093.173.353.55

3.683.804.305.00

0.450.530.600.640.670.750.82

0.860.901.101.41

1.2801.2701.2601.2551.2501.2401.230

1.2241.2201.2001.180

33


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CUSTOMER SERVICE CENTRES

Sl.

No.Branch Address Tel. No. Fax No. Remarks

34

HBL Power Systems Ltd.,Pallath House, Naroth Road,

Thammanam (Post),Palarivattam, Cochin.

0484-2334007,

9388694890- ServiceCochin5

HBL Power Systems Ltd.,

E-7/30, Ashoka Society, Arera

Colony, Bhopal-462016 (M.P.)09329787676 - ServiceBhopal2


No.44, Central Street, Shivaji

nagar, Banglore - 560 001.080-41130303 080-41130306 ServiceBanglore1

HBL Power Systems Ltd.,Indiranagar, 1st street,

Mujundaturam road,Coimbatore - 641 036.

9444985576 - ServiceCoimbatore4

HBL Power Systems Ltd.,Survey No. New No.21, Old

No.7/2, Srivas Building, KellysRoad, Kilpauk, Chennai-10

044-42970300

(10 Lines),

32969870

044-4290333 ServiceChennai3

6 Delhi-1


Plot No.248, Patpergunj

Industrial area, Delhi-110 092

011-22161210,

22160062 011-42141129 Service

HBL Power Systems Ltd.,B-192, GIDC, Electronic Zone,

Sector-25, Gandhinagar,Gujarat - 382 025.

982451488 - ServiceGujarat7


Block - A, Kubera Towers,

Thirumal Gherry, Secunderabad.

040-32921532,

32464972

040-27795419 ServiceHyderabad9


No.141, Chalukya Nagar, Gadag

Rd, Hubli - 580 023.9900138296 - ServiceHubli8

HBL Power Systems Ltd.,Nindar mod, Sikar road,

Harmada, Jaipur - 302 013.(Rajasthan)

0141-3223455,

09314884881- ServiceJaipur10

HBL Power Systems Ltd.,9/32, Suryodaya Colony,

Ranapratap marg,Lucknow-226 001.

0522-3257206,

09335912383 0522-3017509 ServiceLucknow12


BD-79, Sector 1, Salt Lake City,

Kolkatta-64.033-23218060 - ServiceKolkatta11

HBL Power Systems Ltd.,C-49, (Opp.Ranbaxy), Phase-III,Industrial Area, Mohali, Punjab -

160 059.

0176-232239,

09316875903- ServicePunjab15

HBL Power Systems Ltd.,Vellai Pillaiar, Koil street, NearSubhiksha stores, S.S.Colony,

Madurai - 625 010.

9444985567 - ServiceMadurai13

HBL Power Systems Ltd.,Akshay park, Shop no.39, 40, NearSantosh mangal, Opp. Seva vikaskaryalay

bank ltd, Thergaon, Pune-411 033.

9372495970 - ServicePune16

HBL Power Systems Ltd.,Adit i, F2-A5, 3rd Floor, Sector-9,

Near Shabri Hotel, Vashi,Mumbai-400 703.

022-27895576 022-27895576 ServiceMumbai14


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Documents

Tubular low maintanance battery