Godox VB18 DC 11.1V 2000mAh 22Wh Lithium-ion Li-ion Battery for Ving V850 V860C V860N Flash Speedlite Extra power for your digital video camera/ camcorder High capacity and rechargeable Li-ion battery with premium cell Dimensions: (2.2 x 2.28 x 0.94)" / (5.6 x 5.8 x 2.4) cm(L x W x H) Full Power Flashes: 650 times on V850 Charging Time: Approx. 2.5 hours with AC charger; 4 hours with car charger