USB rechargeable batteries : One of the major contributors to toxic waste is the alkaline batteries that we dump annually. To avert and avoid such harmful waste that contributes to global warming, we can use these unique sets of USBCell rechargeable batteries.
These batteries look and act exactly the same as the normal AA batteries that we use in numerous devices across our homes and offices. The positive end of these batteries can be opened to reveal the USB plug which can be connected to any USB outlet for charging. Once charged, all you need to do is to just close the cap and insert into the device you want to use them in.
Another great feature is that these batteries can also be charged with a standard NiMH charger. USB charging time for these batteries is about 5 hours and you can buy a pair for about $18.