Advanced NiMH battery technology, no battery memory effect.Easy operation, battery can be charged anytime without the need to fully discharge.Specially design for Airsoft guns for power intensity and long running time.6 months warranty.Technical SpecificationsVoltage10.8VBatteries:9 NiMH Sub C matched cellsMaximum Discharge Rate40AConnector Type:Standard Male Tamiya with 14 AWG wires.DimensionsWidth 1.85";Thickness 0.95"; Length 8"Weight:1.2 Lb.