Fuze Battery One Piece Adapter Plugs are a great option for a standard battery adapter plug. These one piece plugs offer less resistance, a cleaner installation and can carry more current. If you are using an adapter to connect a battery to your ESC, this is a must have. Adapter features EC3 Male to Traxxas Female connections. NOTE: This adapter is not compatible with Traxxas iD connectors and is not recommended for charging applications.