This USB NiMH rechargeable AA battery can be used in normal battery applications and can be recharged simply by plugging into any powered USB port , no charger is needed:

*Charging Charge anywhere from any accessible powered USB.
 *Portability No need for a separate charger or cables when travelling. Built in intelligent USB charger
 
Key Specifications/Special Features of our USB AA battery:
1. Rechargeable NiMH AA size batteries
2. norminal voltage:1.2V
3. typical capacity:1450mAh
4. Can be recharged simply by plugging into a USB port.
5. Can be charged by normal NiMH charger
6. Widely used as common AA battery
7. charge time: about 5  hours via USB port