Features: Item: HV 1S Crazepony Lipo Battery Rate: 30C Dimension: 54mm * 12mm * 5.6mm Weight: 5.6g/per unit Capacity: 230mAh in standardvoltage, 250mAh in high voltage The connector plug: Micro jst 1.25 AKA Molex1.25 , Pico , mCX This battery is lighter than the usual 230mah battery, and can be charged to either standard voltage (4.2v, 230mah) or high voltage (4.35v, 250ish mah). This is newly developed chemistry for a longer lifetime and safer charging situation. This battery will give you higher rpms (more power) and a considerably longer flight time. High density with great safety fits Blade Inductrix, Blade Nano QX, Nano CPX, Blade mCX, Blade mCX2, UMX Radian, Champ, UMX T-28,Night Vapor, UMX Corsair, Whipit, Sport Cub S etc -------------------------------------------------------- Package Including 4 * 230mAh HV 1S Lipo Battery 30C 3.8V