HIGH COMPATIBILITY: The 100A 12V battery disconnect switch is ideal for cutting off and isolating the DC 12-24V electrical system when a vehicle or boat is not in use, to ensure safety. The 12v battery disconnect switch is universal for cars, ATVs, marine boats, campers, caravans, travel trailers, trucks, buses, motorcycles, etc. EXTEND BATTERY LIFE: The battery disconnect switch is designed for 12-24VDC (MAX 32VDC) electrical networks, degree Continuous: 100A 32V DC Max, Intermittent: 150A, Starting Power: 500A 5 seconds. This battery circuit breaker can be used alone or interlocked with another circuit breaker to minimize battery loss and effectively prevent current leakage. ON-OFF SWITCH WITH REMOVABLE ROTARY BUTTON: Our battery isolator comes with a clear switch label to mark the ON and OFF positions. ON = power switch, OFF = stop switch. OUT = Remove the red button for insulation or safety purposes. Child-friendly and cannot be accidentally opened by children. Also very effective