Curt Liljeberg, Chad Kreye, Lisa Harris and Cortnie
Goodrich
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A cell phone that never needs recharging might sound too good
to be true, but Nokia says it's developing technology that could
draw enough power from ambient radio waves to keep a cell-phone
handset topped up.
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Ambient electromagnetic radiationemitted from Wi-Fi
transmitters, cell-phone antennas, TV masts, and other sourcescould
be converted into enough electrical current to keep a battery
topped up.
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Advantages to new technology No need for power cord to charge
phone Elimination of multiple cords to charge multiple phones Ease
of charging, no need to be at electrical outlet No need for AC/DC
adapters
Disadvantages of New Technology Less efficient than using power
cord Metal objects can obstruct charging Battery back-up needed if
leaving power port zone Limited distance of charging
capability
