12V Remote Battery Disconnect Switch – 240A Automatic Power Shut-Off for Cars, Trucks, Boats, RVs

A high-performance battery kill switch engineered to protect your battery, prevent unexpected drain, and give you full remote control over your vehicle’s power. Designed for reliable long-term use, automatic voltage protection, and quick installation on any 12V system.

Why Choose This Remote Battery Disconnect Switch?

• Protects your battery from drain caused by long-term parking, aging wiring, or forgetting lights/devices on.

• Automatic voltage cut-off prevents deep discharge and extends battery lifespan.

• Remote-controlled shut-off gives instant power disconnection without lifting the hood.

• Energy-saving magnetic latching relay consumes only 3mA standby current.

• Improves safety by preventing accidental activation while driving (remote lockout above 13.2V).

• Fast and simple installation on the negative pole for stable performance.

• High-load capability with 240A rated current and 500A peak tolerance.

• Universal compatibility for cars, trucks, RVs, boats, ATVs, UTVs, motorcycles (12V systems, displacement < 4.0).

Key Features & Benefits

Automatic Voltage Protection

• Cuts power automatically when voltage drops below 11.8V ±0.2V to prevent deep discharge.

• Triggers after 120 seconds, allowing the system to stabilize before shutoff.

• Ensures your vehicle always starts, even after long storage.

Remote-Controlled Power Shut-Off

• Instantly disconnect power from a distance — ideal for security, storage, and battery maintenance.

• Prevents unauthorized use and reduces the risk of electrical fires caused by faulty circuits.

Magnetic Latching Technology (3mA Standby)

• Uses a modern magnetic relay for ultra-low energy consumption.

• Maintains stable performance and prevents unnecessary battery drain.

Anti-False Contact Safety Design

• Remote function is disabled above 13.2V to avoid accidental shutoff while driving.

• Power can only be restored manually from the switch button at high voltage — a built-in safety safeguard.

Extend Battery Life

Ideal for preventing power loss due to:

• Long-term parking

• Aging electrical components

• Parasitic drain from onboard electronics

• Forgetting lights or accessories on

Reduces wear, protects battery health, and cuts replacement costs.

Perfect For

• Car owners parking for extended periods

• RVs and boats with multiple onboard electronics

• Work trucks and machinery needing reliable power isolation

• Off-road vehicles (ATV/UTV) stored seasonally

• Anyone wanting a simple, effective anti-theft and battery protection solution

How to Use

1. Turn off vehicle power before installation.

2. Mount the switch on the negative terminal (supported sizes: 9–13 mm and 15–17 mm).

3. Connect wiring following included instructions.

4. Test by igniting the vehicle and using the remote control to cut and restore power.

5. For high-voltage conditions (above 13.2V), use the manual button on the switch for safety.

Product Details

• Rated Voltage: 12V

• Rated Current: 240A

• Instantaneous Peak Current: 500A

• Standby Current: 3mA

• Automatic Cut-Off Threshold: 11.8V ±0.2V

• Remote Lockout Threshold: >13.2V

• Operating Temperature: 30°C to 90°C

• Connection: Negative terminal

• Compatibility: Cars, trucks, boats, RVs, trailers, ATVs, UTVs, motorcycles (displacement < 4.0)

What’s Included

• 1 × Remote Battery Disconnect Switch (12V, 240A)

• 1 × Remote control unit

• Installation accessories

• User instructions