Amazon.com: Remote Battery Disconnect Switch, Upgraded Kill Switch for Car, DC12V 250A Dual Remote Control, Prevent Battery Drain, Anti -Theft, with 2 Keys : Automotive
Amazon.com: Nilight - 90015A Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty : Automotive
12-24V Battery Disconnect Switch Cut Off Power Kill Switch for Car Boat RV+2 Key | eBay
Attwood 14230-3 Single Pole 4-Way Selector Marine Battery Switch - Walmart.com