Features: The battery terminals are suitable for 6V/12V battery voltages. Rated current: 100A; Instantaneous current: 300A. Suitable for 15-17mm battery poles. Material: The battery terminals are made of solid copper-zinc alloy, with good electrical conductivity, and can effectively reduce heat generation. With a long service life. Function: Fits the plus and minus poles very well. They are also strong enough to tighten properly. The battery cables can be handled cleanly. Easy to use: A simple twist of the black switch allows you to quickly and safely disconnect the battery. Usage: The 12v battery disconnect switch is suitable for cars, boats, cars, trucks, caravans, motorcycles, motorhomes, etc.