These 400mAh AAA batteries simply plug into any powered USB port to be recharged. They're a brilliant idea for battery operated PC input devices such as a mouse or keyboard. A Micro B USB cable is required for recharging.
For More info on Charging Batteries.
|Type of battery||AAA|
|Battery Chemical Composition||Nickel Metal Hydride (Ni-MH)|
|Amp Hour Rating||400mAh|