This ARRMA IC5 Loop Connector allows the use of a 4S or 6S LiPo battery pack in your ARRMA vehicle. It should be connected to one of the ESC-to-battery plugs when using a single 4S or 6S battery. The IC5 connector provides a reliable, efficient connection between the ESC and battery. Supplied assembled and ready to use. Includes: 1 x IC5 Loop Connector.