6V 1600 mAh NiMH Receiver Battery PackHigh quality 6.0 V, 1600 mAh battery pack made of 5 x 2/3 A size NiMH cells. Rapidly charges up and long cycle life.Recharging up to 1000 times. ShapeSide by Side TrapezoidConnectorHitec connectorWeight130g Dimension 50 x 30 x 30mm