The Dynamite 7.4v 32000mAh 2S LiPo Receiver Battery is ideal for the Team Losi Racing 8IGHT-X. Specifications: Type: Receiver Pack Capacity: 3200mAh Voltage: 7.4V Connector Type: JST-XH Cell Size: 3.7V Number of Cells: 2 Configuration: 2S1P Length: 2.76 in (70mm) Width: 1.5 in (38mm) Height: 0.77 in (19.5mm) Application: Surface (specifically for 8IGHT-X)