NIKON EN-EL20 7.2V 850MAH Brand Empire Scientific Voltage 7.2 Volts Item Dimensions LxWxH 1.98 x 1.21 x 0.55 inches Item Weight 0.2 Pounds Capacity 850 Milliampere Hour (mAh) About this item 7.2V 850mAh Lithium-Ion