AAA or AA Battery Rechargeable USB Type-C Li-Ion 1.5V 1100mWh 3400mWh 4255mWh
Capacity:AA:3400mWh / AAA:1100mWh. For AA / AAA Battery. Size: AAA/AA. if you Order 4x AA Batteries . You willGet 4x AABatteries Only. Outstanding design. In the long run, it is more economical than using ordinary batteries.