melasta 7.4V 2500mAh Li-po High Power Battery Packs Tamiya Discharge Connector RC Racing Cars MELASTA Polymer cells, the first choice of car powertrain for most top Formula SAE Racing Teams in the world since 2012 up to date! Lipo technology :No cell memory effect. Compatible with: popular standard 7.4V RC cars which with Tamiya connector. Standard Dimension: 136.75*46.41*25.16mm/5.38*1.83*0.99inch. Warranty: 35- DAY return policy and 1 Year warranty.