Specifications: Compatiable for:Wltoys 12401 12402 12403 12404,Specially designed manufactured for your high-quality RC devices. Battery volts：7.4V, Battery capacity: 1500mAh Charge Plug: JST-XH,Discharge Plug: T Connector Charging Time:About 150 mins,Fast charge and discharge rate for your requirements. Using time: 8-10 minutes,Easy to install and convenient to use. Size :2.76*1.38*0.59in / 7*3.5*1.5cm Weight：3.35oz / 95g Quantity: 2 pcs without battery charger, if you aren't absolutely satisfied, returned it within 30 days for a full refund.