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NoPoPo - Pee-powered battery launched

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 par with existing zinc-carbon AA batteries; however, existing alkaline batteries have a longer life of between 1700 and 3000 mAh.

It's rumoured the batteries retain their charge for up to 10 years, but they can be recharged only a limited number of times. Itís also thought they could be slightly less harmful for the environment than existing battery compounds, because they can run off more, ahem, natural substances.

Unfortunately, the NoPoPo batteries are on sale only in Japan at the moment and a European release date or price has not yet been mentioned.

Dipped in a plastic cup full of water is a NoPoPo (Non Pollution Power) battery that works on water!

NoPoPo batteries work by adding a few drops of water - or any liquid for that matter, you can even use urine, according the literature - into a patented, self-sealing battery. Inside, a mix of carbon and magnesium react with the liquid and produces power - said to be around 500mAh in the case of an AA-size battery. What's more, the eager representative was keen to state, extra power can be added by refilling the battery; just open the trouser zip and let fly!

Already on sale in Japan and with an estimated shelf-life of 10 years, a pack of two AA batteries costs around a fiver. Worth it for the novelty value if nothing else?

This latest battery concept marks the most recent in a series of new battery-power designs. Earlier this month, boffins at Sony unveiled a battery design based on sugar, which it claimed could generate enough power to run an MP3 player.

In May, Australian researchers from the University of Queensland even teamed up with beer-brewer Fosterís to power up a battery by brewing waste.

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Added: Sep-5-2007 
By: n3t1z3n_k4n3
News, Other
Tags: NoPoPo, Pee-powered battery, Aqua Power System
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