Battery Voltage:7.4V and battery capacity: 1500mAh, size:2.71*1.49*0.74inch and weight: 3.1oz, light weight and high capability, Low internal resistance Make sure your rc toys battery is same 7.4V and Battery discharger plug is same JST Plug Full charge need about 120 mins,Running time about 8-10 minutes, the battery has max 15C high magnification,ability to charge and discharge quickly. Stable power supply, large capacity provides more playing time Package include 2 pack 7.4V 1500mAh battery pack, 1 pcs USB charger cable,1 pcs balance charger.Can charge 2 battery at same time Rechargeable 7.4V 1500mAh Lithium-ion Battery compatible for HUANQI 957 948 MJX T10 T11 T34RC FT007 RC Car Helicopter Boat Series Product description.