USB Rechargeable Battery

This AA USB Battery can be recharged simply by inserting it into a USB port. As a result this is a great product for wireless keyboards and mouses. Just uncap the top, plug it in and recharge it.

USB Rechargeable Battery

They take about 5 hours to get 90% charged, which is pretty fast but could be better given the rate at which some electric razors can charge. However, given that it is so convenient to have them and that they are relatively low priced, these are definitely worth the buy.

USB Cell Batteries Plugged In

If you have a lot of items such as a wireless keyboard and mouse that constantly need batteries, this is the best solution for you.