1. More Convenient: The wireless remote control allows you not to open the hood every time to turn off the power, just press the remote control button then your car power system is disconnected. 2. Battery Protection: The battery cut off switch plays an important role in extending the service life of battery, it effectively prevents the battery from draining while it is not used. 3. Space Saving: Our battery switch do not have many complicated wires, eliminating the troublesome of cable tangling, and its size is rather small, so it won't occupy much space. 4. Low Energy Consuming: The power consumption of this switch is 5mA in standby and about 3W in operation, so this product is energy consumption friendly. 5. Convenient to operate: The battery disconnect switch kit comes with two copper plates, two metal clamps, and two copper nuts, it means you could install it easily in both positive or negative side. Item Type: Remote Battery Disconnect Switch Battery Model: CR2016 ( one battery for each remote switch, shipped with built in battery ) Battery Capacity: 75mAh Working Voltage: DC11-15V Rated Current: 250A Starting Current: 450A ( less than ten seconds ) Standby Current: 0.005A Instructions: Working Voltage: The 12V and 24V remote control power off switches cannot be mixed. 12V is selected for one battery vehicle, and the corresponding voltage switch shall be selected for most cars, small trucks, agricultural vehicles etc. How to Use: 1: The thin red wire is connected to the positive pole of the battery, and the thin black wire is connected to the negative pole of the battery, these 2 wires supply power to the switch, which consumes little power. 2: The 2 large terminals on the relay switch are the main switch. One incoming line and one outgoing line, regardless of the order, are on