Pee-powered battery unveiled...
4th September 2007
By James Sherwood
The trouble with batteries is that there never seems to be a power socket in sight when you want to charge them up. Thankfully, one manufacturer has developed a battery that should be slightly easier to recharge, thanks to its ability to run off a variety of liquids, including water and urine.
Dubbed NoPoPo, the battery has been developed by the Japanese company Aqua Power System and comes in standard AA and AAA formats. Although, larger capacities for use as auxiliary power supplies have been rumoured.
The AA and AAA batteries can be recharged with a variety of liquids, inserted into the chamber via a pipette and the basic principle is that a mixture of magnesium and carbon reacts when mixed with a liquid to produce, in the case of the AA battery, up to 500 milliamp-hours (mAh) of life. This puts them on a p
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