Tenergy High Capacity 9.6V 4200mAh Nickel Metal Hydride Battery Pack. Made with 8xSc 4200mAh high capacity and high power NiMH Batteries. Advanced NiMH battery technology, no battery memory effect. Easy operation, battery can be charged anytime without the need to fully discharge. Builtwith 16 AWG silicone wire andstandard Tamiya Connector. Specially design for stock or mod spring, classic Army SA RPK-7 airsoft gun. Longer running time and easy operation than original NiCd battery pack. 6 months warranty.Specifications Voltage9.6V Maixmum Discharge Rate40amps Connector TypeStandard Tamiya. Dimensions:Height 0.94″; Width 3.50″; Length 3.62″ Weight1lb 1.6Oz.