Side Post Battery Disconnect Switch, 275A 12V-48V Battery Cut Off Master Isolator, On/Off Power Kill Switch for Car Truck RV Boat Marine

About This

• Stops Battery Drain During Storage: Parasitic draws can drain a battery in weeks. This battery disconnect switch cuts all power with a simple twist. Rated for 275A continuous and 1250A cranking. Keeps your battery ready when you need it.
• Fits Side Post Batteries with 3/8" Terminals: Designed for GM-style side post batteries with 3/8" holes. No adapters or modifications needed. The long bolt design ensures full thread engagement. Installs in under 5 minutes.
• Rugged ABS Housing Lasts for Years: Some plastic housings crack under engine heat or vibration. This kill switch uses rugged ABS construction. Withstands -40°F to 200°F. Resists moisture, dust, and temperature extremes. Works reliably in engine bays and marine environments.
• No More Dead Batteries When You Return: Coming back to a dead battery ruins your trip. This battery cut off switch eliminates parasitic drain completely. Park your boat or RV for months. Come back to a fully charged battery.
• Works on Cars, Boats, RVs, and Trucks: Universal fit for 12V to 48V DC systems. Use on your daily driver, weekend boat, or seasonal RV. Also works on ATVs and campers. One switch protects multiple vehicles.

Overview

• Brand : Yiwview
• Item dimensions L x W x H : 0.1 x 0.1 x 0.1 inches
• Color : black
• Number of Items : 1
• Our marine disconnect switch fights back with
• Tinned copper lugs that shrug off salt creep and humid bilge mist
• Fully sealed internals – moisture can’t sneak in through cracks
• Vibration-lock terminals that stay torqued even at 30-knot wakes
• Don’t wait for the first failure. This shield keeps your circuit alive season after season – because out there, salt spray damage isn’t a nuisance. It’s a hazard.
• Why buy a cut-off that limits your upgrades? Most switches choke at 200A or force you into narrow voltage brackets. Ours gives you 12–48V freedom and a brutal 1250A surge (5 seconds) – so you can add lights, inverters, extra batteries, whatever.
• Crank your RV’s 15,000 BTU A/C while the fridge keeps running – no voltage sag
• Jump-start a dead boat motor without melting the internal contacts
• Fit side-post or top-post – no adapter hunting, no drill bits
• This isn’t just a switch. It’s your license to build out your vehicle without ever swapping the master kill again. Stop settling for “good enough.” Take the full amp headroom – and never look back.
• We build lasting durability into every layer with three layers of defense.
• Park your RV for the winter? Store your boat until spring? That tiny standby current (clock, radio memory, ECU) will flatten your battery in 3 weeks. Then you’re jumping or replacing – wasted time and money.
• Our rotary disconnect gives you one-motion power isolation
• Clockwise → full circuit live (green indicator visible)
• Counter-clockwise → complete break (red mark shows OFF)
• The compact body tucks into tight battery boxes – ATV, motorcycle, ski boat – anywhere. And the printed ON/OFF is big enough to read in dim engine bays.
• No wrench. No fuse pulling. No arc flash. Just a twist – and your battery stays charged for months. Install it in 5 minutes, then forget it until you need it. That’s the convenience of a kill switch done right.