Manual button can turn off; 120 seconds off, magnetic hold relay. It can effectively protect and extend the service life of the car battery. [ Easy to install ] The power off switch adopts a negative connection to ensure stable performance.
eBay
CG 12-48V On/Off Battery Disconnect Switch 275A Side Post Battery Power Cut Master Switch Disconnect Isolator for Car, RV & Boat
Aliexpress UK
1 Pcs Car Battery Isolator. (Battery Negative Column within 15-17mm). Connect the red wire to the positive pole of battery ，black wire to the negative pole of battery. Do not connect the positive and negative poles in reverse, or the motherboard may be burned.
eBay
CG On/Off Marine 275A Battery Disconnect Switch Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Boat
Aliexpress UK
1 Pcs Car Battery Isolator. (Battery Negative Column within 15-17mm). Connect the red wire to the positive pole of battery, black wire to the negative pole of battery. Do not connect the positive and negative poles in reverse, or the motherboard may be burned.
eBay
12-48V Car Isolator Disconnect Rotary Switch 275A On/Off Battery Power Cut Master Switch Disconnect Isolator for Car RV Boat
Aliexpress UK
This car battery disconnect switch can master kill your vehicle system power, extend and protect the battery and engine life. 1 x Car Battery Disconnect Switch. -With higher working current and instantaneous current, this disconnect switch is safer and more active.
eBay
CG On/Off 275A Top Post Battery Disconnect Switch 12-48V Waterproof Heavy-Duty Marine Battery Switch for Car Vehicle RV and Boat
Aliexpress UK
Disconnect Switches can solve the power consumption caused by such problems, and can extend the battery power and service life of cars. Battery disconnect switch rated current: 240A. It can effectively protect and prolong the life of car battery.
eBay
CG 275A On/Off Marine Battery Cut Off Switch Master 12-48V Waterproof Battery Disconnect Switch for Car Vehicle RV and Boat
Aliexpress UK
This car battery disconnect switch can master kill your vehicle system power, extend and protect the battery and engine life. With higher working current and instantaneous current, this disconnect switch is safer and more active.
eBay
12-48V Top Post Battery Kill Switch 275A On/Off Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV Boat
Aliexpress UK
Battery disconnect switch rated current: 240A. Disconnect Switches can solve the power consumption caused by such problems, and can extend the battery power and service life of cars. It can effectively protect and prolong the life of car battery.
eBay
300A Truck Car Battery Power Switch, Fixed Key Disconnect Isolator Circuit Breaker Main Switch Master Cut Off Kill Switch Key
Aliexpress UK
12V Battery Disconnect Rotary Switch Cut On/Off Set for Car SUV RV Marine Boat. Widely used for Car, Marine, Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery banks and other 0-48V Devices. 7, Used for DC 12 - 48V systems to isolate and secure the electrical system.
eBay
2 Position on/Off Battery Disconnect Switch Heavy-Duty 12-48V Battery Isolator Waterproof Brass Power Cut Master Isolator
Aliexpress UK