High Compatibility: The 12V 100A battery disconnect switch is ideal for disconnecting and isolating 12-24V DC electrical systems when the vehicle or boat is not in use, ensuring safety. The 12V battery disconnect switch is universal for cars, ATVs, boats, RVs, caravans, travel trailers, trucks, buses, motorcycles, etc. Extends Battery Life: This battery disconnect switch is specifically designed for 12-24V DC systems (up to 32V DC). Continuous rated current: max 100A 32V DC; intermittent rated current: 150A; cranking current: 500A for 5 seconds. This battery disconnect switch can be used alone or interlocked with other switches to minimize battery discharge and effectively prevent power leakage. Removable Knob Switch: Our 12V battery disconnect switch is equipped with clear labels to indicate the switch position. \"ON\" means on/closed, \"OFF\" means off/open. The \"OFF\" position indicates that the red knob is removed to safely isolate or protect. Child-friendly design, difficult for them to accidentally open. It is also an effective anti-theft device! Exceptional Durability: This waterproof 12V disconnect switch features durable brass terminals with high conductivity, a robust ABS housing, and a PBT switch knob that is resistant to high temperatures. The brass nuts and washers are tin-plated and have flame-retardant properties. This 12V disconnect switch is also equipped with a waterproof cover on top for better protection. Easy to Install: The built-in 12V car battery disconnect switch can be installed in 15 minutes – ready to use! Mounting hole: 29 mm; bolt diameter: M6. The 12V car battery disconnect switch is ideal for easily disconnecting the battery during long-term parking to ensure safety or perform maintenance work, while saving energy.