BestforU&reg; Upgraded 11.1V 2800MAH 30C Battery for Cheerson CX-20 RC Quadcopter Remote Control Toys Parts Compatible with Cheerson CX-20 RC Quadcopter Voltage: 11.1V . Volume: 2800mAh (Manufacturer rated) . Charging time:120mins Weight: 203g . Dimensions: 9.5*4*25.5cm