The Sony NP-FV100 rechargeable InfoLITHIUM™ battery offers much longer recording times than batteries supplied with camcorders, high capacity 6.8 V / 26.5 Wh / 3,900 mAh, fast recharging with optional AC adapter / charger AC-VQV10, ActiFORCE technology for higher-performance batteries. The FV100 has a higher capacity, shorter recharging time and faster, more accurate indication of remaining capacity.