Small beautiful and perfectly formed. Purchased on a whim destined to become just another gadget I never use, these batteries actually surprised me! I've used them in my camera and my wireless mouse.. never be without rechargable USB batteries again... (via Ben)

They aren't that expensive, and its been told they will last you longer!
Very easy to recharge. (via LifeHacker)

Quick and easy. My car adapter plus computer supplies me with endless AA battery power for trips. Great idea! (via IxBehemoth)

Charge your wireless mouse batteries right own your computer.

I'm a sucker for neat USB gadgets and I'm always in need of batteries. These are perfect

A rechargeable AA battery - only it feeds of your computer through the USB port. Great for travelling. Especially if yours is the stationary variety. (via Treehugger)

Another inexpensive but cool gift for the computer geek in your life. These batteries recharge via the usb on the computer. Have you travelled and needed batteries for your mouse in the middle of the night? Well, here's your answer. $19.

Oh, did I mention it's also good for mother Earth? It's eco-friendly because you'll produce less waste.

this is a great idea its perfect for those times when you're looking around and you cant find any batteries. plus its eco-friendly