1Product Information: Boat battery switch continuous current is 300A, operating voltage is 12V?48V, safe and reliable to use. 2Wide Application: Battery power cut master switch is ideal for Rv, travel trailer, marine, boat, camper, truck, Atv, Utv, etc. 3Function: Battery Switch with On and Off position acts as a power cut off, eliminating any power drain from the battery pack and disconnect the batteries safely when the vehicle or boat is not in use. 4Performance: Upgraded design allows switching between battery banks without power interruption. Stable performance and high reliability. 5Installation Detail: This battery switch can be safely mounted on gasoline powered boats, the chassis design allows for surface, front panel or rear panel mounting.