Effective ProtectionEasy one-button operation, you can completely cut off the battery power of the car or boat, which can avoid the battery being discharged for a long time, effectively prolonging the service life of the battery and reducing the frequency and cost of replacing the battery Upgrade DesignThe battery disconnect switch housing is made of ABS material, which has good waterproofing and durability to prevent short circuits. Compared to others, our battery cut-off switch is made of tinned copper studs and nuts with good conductivity and corrosion resistance Package IncludedThe package includes 1 battery switch, 4 stainless steel mounting screws and a manual, which can help you install the battery cut off switch more conveniently. If you have any questions,please contact us via email. We are always here to support you Wide ApplicationThis battery shut off switch is suitable for DC 12 - 48V system to isolate and secure the electrical system, can stand alone or be locked together with other switches. It is widely used for Car, Marine, Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery banks and other electrical equipment's switch Ideal Power SwitchThis 12V battery disconnect switch features two positions, ON/OFF, with a rating of 275A continuous (1hr), 455A intermittent (5 min), and 1250A cranking (10 sec). Stud size: 2x3/8" (10mm)