Heavy-Duty 12V 240A Remote Battery Disconnect Kill Switch (Side Mount)

Modern trucks are loaded with electronics. When you add aftermarket accessories like light bars, winches, air suspension systems, or heavy-duty audio components, parasitic battery drain becomes a serious issue. This heavy-duty 12V 240A Remote Battery Disconnect Switch eliminates dead batteries while doubling as the ultimate anti-theft security measure for your rig.

Engineered with a massive 240-amp continuous rating, this electromagnetic relay easily handles the heavy starting demands of large V8 engines and high-draw electrical systems. With the push of a button on the included wireless key fob, you can completely isolate your battery from the vehicle's electrical system from up to 300 feet away. Whether you are parking your truck in a high-theft area, storing it for the winter, or just want to guarantee your aftermarket accessories don't leave you stranded with a dead battery, this side-mount kill switch is an essential upgrade.

Key Features

• Wireless Remote Operation: Includes long-range remote key fobs that allow you to cut or restore vehicle power automatically without ever having to pop the hood.

• High-Amp Capacity: Built with a heavy-duty internal electromagnetic solenoid rated for 240 Amps continuous and capable of handling intense starting surges without melting or failing.

• Ultimate Anti-Theft: By completely severing the battery connection, it disables the starter, ignition, and fuel pump—rendering hot-wiring impossible and stopping thieves in their tracks.

• Prevents Parasitic Drain: Completely isolates the battery, guaranteeing that dashcams, aftermarket alarms, or faulty wiring won't drain your voltage while the truck is parked.

• Side-Post Design: Specifically configured for GM-style side-terminal batteries (and universal side-post applications), allowing for a clean, direct bolt-on installation without cutting factory battery cables.

Technical Specifications

Recommended Applications

Universal fitment for vehicles utilizing a 12V side-post battery terminal configuration.

• Chevrolet & GMC Trucks: Silverado 1500/2500/3500, Sierra 1500/2500/3500 (Ideal for generations with side-mount battery configurations).

• SUVs: Tahoe, Suburban, Yukon, Escalade.

• Custom Builds: Off-road vehicles, overland rigs, and work trucks equipped with high-draw aftermarket accessories, winches, and auxiliary lighting.

About this item

• Easy Installation: Side mounting offers more installation options than previous mounting methods, power shut off switch uses a negative connection to ensure stable performance. The anti-reverse connection and accidental contact design ensures safety of use and prevents damage to the vehicle and battery due to improper operation. Please remember to switch off the power supply before installation

• Heavy Duty: Kill switch rated current: 240A, rated voltage: 12V, standby power consumption: 1mA, power-off threshold: 11.8V±0.2V, cranking rating: 1000A for 30 seconds

• Magnetic Latching Function: This Battery disconnect switch for car uses a new type of relay that controls circuit disconnection and cut-off by magnetic principle, with a standby current of 1mA, which is more energy-saving

• Automatic Cut Off: If the voltage is lower than 11.8V, the remote kill switch will automatically cut off the power supply after 120s to save electricity. If the voltage is higher than 13.3V, the remote control will be disabled to prevent accidental action to shut off the power while driving, and the power supply can only be controlled by the button on the switch

• Protect the Battery: Using this 12V car battery kill switch can avoid hidden extra power consumption due to long-term parking, aging of electronic devices, line aging, forgetting to turn off the light, etc. It can effectively protect and prolong the life of car battery. It can effectively protect and prolong the life of car battery