1. Operating specifications: Rated current of battery disconnector: 240A, rated voltage: 12V, standby power consumption: 3mA, shutoff threshold: 11.8V ± 0.2V, instantaneous current: 500A. 2. Automatically shut off battery: When the voltage drops below 11.8V, the remote control switch will automatically turn off after 120 seconds to save power. If the voltage exceeds 13.5V, the remote control function will be disabled to prevent accidental power failure while driving, and the switch can only be operated manually. 3. PROTECT THE BATTERY: This auto disconnect switch for car battery prevents battery drain caused by prolonged parking, aging circuits, or forgetting to turn off lights. It effectively safeguards the car battery and extends its service life. 4. Wide application: This automatic shutoff switch is compatible with most 12V vehicles, including cars, boats, RVs, trailers, trucks, ATVs, UTVs, and motorcycles with displacement under 4.0L. Negative terminal sizes: 913mm and 1517mm (not suitable for vehicles with small terminal posts).