Melasta 7.2V 5000mAh Ni-MH High Power Battery Packs with Tamiya Discharge Connector for RC Racing Cars Boat Aircraft MELASTA battery, the first choice of car powertrain for most top Formula SAE Racing Teams in the world since 2012 up to date! Super NI-MH technology: No cell memory effect. Compatible with: popular standard 7.2V RC cars which with Tamiya connector. Standard Dimension: 1372.5*47.65*24.44mm /5.380.098*1.88*0.86inch. Warranty: 35- DAY return policy and 1 Year warranty.