USB Charging Batteries?

Next time you need some batteries, be sure to check out these rechargeable batteries. You never have to worry about finding that dreaded charging base. Simply plug them into any USB port and they instantly charge. Let me know what you guys think in the comments below. Link to them directly below:

Best Buy: (AA) http://www.bestbuy.com/site/eco-cell-usb-cell-rechargeable-aa-batteries-4-pack-white-green/4471800.p?id=1219751164157&skuId=4471800

(AAA): http://www.bestbuy.com/site/eco-cell-usb-cell-rechargeable-aaa-batteries-4-pack-white-green/4472100.p?id=1219751168653&skuId=4472100

Видео USB Charging Batteries? канала MexTechGuy