Convenience Design Convenient design eliminates the need for retrofitting.Directly connects to the negative terminal of a top post battery without extra cables or lugs. Allows quick and secure isolation of the electrical system. NoteAlways set the switch in the OFF position before disconnecting and connecting the motor to the battery. Performing operations under load may damage the battery switch. Working ParametersSuitable for DC 12-48V systems, features ON/OFF positions. It can operate continuously at a current of 275A at an operating voltage of 12V, withstand an intermittent current of 455A, and a transient current of 1250A. Intended Use Cutting off the connection between the battery and the electrical system when the vehicle and boat are not in use provides good protection against battery loss due to leakage. Offers a safe way to disconnect the battery, making it ideal for cars, RVs, and boats. Compatibility The 2 ends are two 3/8 size screws, suitable for most of the batteries, before selecting the type, please pay attention to the size of the screws to match the terminals. Durable BuildThe body is made of high quality flame retardant ABS material,not afraid of sparks. The metal connection part is made of high-quality brass casting, which is sturdy and durable, with high conductive efficiency and long service life.