This is the Great Planes ElectriFly 8-cell 9.6V 1800mAh NiMH Battery.FEATURES: Rectangular shaped shrink-wrapped and pre-assembled1800mAh 4/5 Sub C size cellsPre-attached Black 2-pin connectorINCLUDES: One Great Planes ElectriFly 8-cell 9.6V 1800mAh NiMH BatteryREQUIRES: Charger capable of charging Nickel Metal Hydride batteries. Chargewith a NiMH-compatible Quick Charger, or at 250mA for 10-12 hours.Suitable Chargers: ElectriFly Peak 400 (GPMM3001), Triton2 (GPMM3153)SPECS: Cell Size: 4/5 sub CLength: 5.25" (133mm) Length of lead: 2" 14AWG wireWidth: 1.81" (46mm)Height: .67" (17mm)Weight: 260 grams (9.17oz.)