6800 mAh 7.2 V Ni-MH rechargeable 10 years of use Super Power type and brand battery Diameter 135mm Height 48mm Charge and discharge times Up to 1000 time Battery capacity 6800 Mah Standard voltage 7.2 V Lifespan 10 years Features: 1. High capacity, small size, Light weight 2. Stable discharge voltage 3. High continuous discharge rate 4. Internal resistance 5. Pollution, Long cycle life