Automatic Cut Off Battery: If the voltage is lower than 11.8V, the remote kill switch will automatically cut off the power supply after 120s to save electricity, if the voltage is higher than 13.2V, the remote control will be disabled to prevent accidental action to shut off the power while driving, and the power supply can only be controlled by the button on the switch. Protecting Automotive Battery: Using this car battery switch can avoid power consumption due to long-term parking, good point of electronic equipment, line aging, forgetting to turn off the light, etc. It can effectively protect and prolong the life of car battery. Specifications: Battery disconnect switch rated current: 240A, rated voltage: 12V, standby power consumption: 3mA, power-off threshold: 11.8V0.2V, instantaneous current: 500A. Magnetic Latching Function: This car battery disconnect switch uses a new type of relay that controls circuit disconnection and cut-off by magnetic principle, with a standby current of 3mA, which is more energy-saving. Widely Applications: This battery disconnect switch suit for most 12V car, boat, Rv, trailer, trucks, ATV, UTV, motorcycle, vehicles with displacement less than 4.0; Negative pole: 9-13 mm and 15-17mm, not fit for small pile head vehicles.