Nimrod 7.4 Volt (2 Cells) 1300 mAh / 25 C Lipo Battery Charging current (max.): 1.3 A Discharge current (max.): 32.5 A Watthour: 9.6 Wh Dimension: 130x21x12.5 mm Weight: 70 g Shipping weight: 80 g Fits Stock tube & Front Had Guard / Grip. Can only be charged with a Lipo charger.