Standard Capacity :3.7v 650mAh 2.40Wh. Fit for all kinds of helicopter models SYMA X5C X5A X5SC X5SW RC Drone. Battery Size ： 8.5mm(thick) ×25mm(width) × 40mm(length). Each Cell weight :16 g. 4.Built-in protection circuitPCB for prevent over charging or over discharging.
