Product description Voltage - 7.4 V Capacity - 1300 mAh Number of cells - 2Connector type - XT60Type of balancer - JST-XHRDischarge current - 30C Length - 69.5 mm Width - 34 mm Heigth - 14.5 mm Weigth - 79 g Gens Ace Soaring Series batteries are designed for helicopters and aircraft. They provide stable power and will perform well even in harsh environments. Safety manual Do not discharge below 3.0V per cell. Charge only with a microprocessor-based charger in lithium polymer pack charging mode.Do not short-circuit the poles, do not puncture, do not expose to direct sunlight, store away from flammable objects, dispose of in specially prepared containers.