The Plazma NiMH range is the ideal match for all HPI kits that require a durable and reliable Nickel-Metal Hydride battery cell. Use this battery pack in any of the Micro RS4 vehicles. Specifications: Voltage: 6.0V Capacity: 1200mAh Battery Type: NiMH 5-Cell Micro RS4 Pack Cell Size: AA Dimensions: 74 x 55 x 15.5mm Connector: Micro