Nopopo Rechargeable Urine Powered Battery

[MedusaOblongata]

I don't know if you guys have seen these yet...

The NoPoPo batteries are rechargeable via a variety of liquids, including water and urine, injected into the battery chamber with a pipette. A mixture of magnesium and carbon reacts with the liquid, and produces power up to 500 mAh in the case of an AA-size battery. The batteries come in AA and AAA, and retain their charge for up to 10 years. But they can be recharged only a limited number of times...

More info here, here, here, and here

 

[metlarules]

At least you don't have to worry about people wanting to use your batteries

 

[yekim]

Brings new meaning to being p*ssed off when your light quits working.

 

[Sub_Umbra]

Awhile back I started a thread named, "Cell Phone Dead? Urine Luck!"

Same technology -- I just can't find it.

 

[metlarules]

Who's going to be the first to try them out? I could see someone getting arrested for public urination and trying to explain to a judge that I was just recharging my batteries.

 

[Fallingwater]

Note that urine is only one of the liquids allowed. Handy for emergency situations when having a light or radio that works is more important than the momentary disgust of doing what's necessary; otherwise, you'll probably recharge them with water.

Still, 500 mAh is nothing. And they mention it's only rechargeable a limited number of times... if said number turns out to be less than 6 then there's not much reason to prefer these to standard alkaline AAs (about 3Ah, IIRC).

No word on C ratings, but I don't think they can be counted to deliver much current.

 

[Haz]

Each battery will have their 'unique' chemical properties, none will be created equal

 

[Handlobraesing]

I'll stick with 12+ yr life L91s

Who else thought this?