The Fantom Pro Series HV Shorty 2S LiPo 130C Battery allows the user to charge the battery to 4.35 volts per cell. This Provides more voltage and capacity compared to standard LiPo batteries. NOTE: Only ROAR legal when charged up to 4.22 volts per cell. To obtain high voltage a charger capable of charging to 4.35 volts per cell is required. Features: LiHV chemistry 5mm Bullet Connectors Detailed instruction sheet ROAR Approved Specifications: Capacity at 7.6v: 4200mAh Capacity at 7.4v: 3850mAh Watts: 31.92Wh Nominal Voltage: 7.6v C-Rate: 130C (continuous) Dimensions: 93x47x18.5mm (LxWxH) Weight: 155 grams average Connector Type: 5mm Bullet Balance Connector: 2mm Bullet Includes: (1) 2S 4200mAh LiPo-HV battery (2) 5mm bullet connectors (1) 2mm bullet connector (2) Silicone safety plugs (1) Charging adapter