Specifications: Product Name: RC Car Battery Battery Capacity: 7.4V 3800mAh Battery:7.4V 3800mAh LiPo Battery Discharge rate: 30C Test idle running time: 25 minutes Battery Size:90*38*20±3mm Working temperature load: 0 ~ 45 °C Discharge working temperature :(-20 ~ 60 °C) Storage temperature :(-20 ~ 35 °C) Battery Weight:142g Scope of Application: For Wltoys 144001/144010/124017/124019/124018/12428 RC Car.