Check the listing for details. 12-48V Battery Power Cut Master Switch Disconnect Isolator for Car RV (On/Off). Condition: New. Listed at 17.99 USD. ABS INSULATED MATERIAL: Wattcycle battery switch is made of ABS insulated material, which is durable and ensures safety during use, the back cover prevents the circuit from short-circuiting, and the top is designed with a waterproof cover for better protection of the battery wiring. EASY OPERATION: The on/off position of the marine battery switch is clearly labelled in colour. Switch open = power to closed circuit (green), switch closed = no power to cut circuit (red) COMPATIBLE WITH A WIDE RANGE OF BATTERY SYSTEMS: Suitable for 12-48V voltages to isolate and protect electrical systems, with a DC 12V continuous current of 275 A. The 12V battery switch can be used on its own or locked together with other switches to minimise battery loss and effectively prevent leakage.