Standard Capacity :3.7v 650mAh 2.40Wh. Fit for all kinds of helicopter models JJRC H11C H11D RC FPV Drone. Battery Size : 8mm(thick) × 25mm(width) × 40mm(length). Each Cell weight :16 g. 4.Built-in protection circuitPCB for prevent over charging or over discharging.
eBay