These are pretty cool. I almost want to get some.

http://www.usbcell.com/

 

Cool idea.... But.. $20, 2 batteries = no thanks.

 

Agreed, not sure id need that much, or want that much use out of em for $20

 

I would say they would be good for xbox controllers but it's easier just to get a rechargable pack. hmm, that is a neat idea though.

 

way way way too expensive for just 2 AA's, when you can get rechargables for cheaper.

 

Cool idea. Would be good for a wireless mouse or something if you travel.

 

The prices on those have dropped since they came out, they were around $30-35 and they think you'll pay for it instead of having to keep buying batteries when they die (good for 360 controllers which eat batteries for breakfast)

 

I paid 40 bucks for 8 2300 Mah NiMh AA batteries and a 15min charger about 3 years ago... the batteries are all still perfect and last longer than any regular AA battery.. my point...

$20 for 2 batteries is a huge rip-off.

 

costly but freaking sweet concept

 

thats pretty cool. Maybe one for my wireless mouse, would be nice.