Description
Bluetooth Kill Switch — Smart Battery Disconnect for Any 12V Vehicle
Take full control of your vehicle's power with this 250A Bluetooth battery kill switch. Whether you're securing a parked work truck, preventing parasitic drain on an RV, or adding an anti-theft layer to your weekend cruiser — one tap on your phone cuts all battery power instantly. Universal 12V fit, no drilling, no permanent modifications.
Key Features
📱 Bluetooth App Control — Connect via smartphone (iOS & Android) to toggle battery power ON/OFF from up to 30ft away. No need to pop the hood or reach under the dash.
⚡ 250A Continuous / 500A Peak — Handles high-current applications including diesel trucks with dual batteries, RV house banks, and heavy equipment. Solid copper contacts ensure minimal voltage drop.
🔧 2-Wire Install in 15 Minutes — Red to battery positive, black to battery negative, tighten the copper bus bar. No cutting factory wiring. Includes all mounting hardware.
🛡️ Dual Purpose: Kill Switch + Anti-Theft — Works as both a battery maintenance disconnect (prevent dead batteries during storage) and a hidden anti-theft system (fuel pump kill capable).
🌧️ IP65 Weatherproof — Mount Anywhere — Sealed housing rated for engine bay heat, undercarriage spray, and outdoor exposure. Fits tight spaces with compact 3.5" x 2.5" footprint.
What's Included
| 1 × |
250A Bluetooth Kill Switch Module |
| 2 × |
Copper Bus Bar Strips |
| 2 × |
Copper Connection Wires |
| 1 × |
Metal Mounting Clamp |
| 1 × |
Copper Nuts Set |
| 1 × |
User Manual |
Specifications
| Voltage |
12V DC |
| Continuous Current |
250A |
| Peak Current |
500A (≤5 sec) |
| Control Method |
Bluetooth 4.0+ (iOS & Android App) |
| Range |
Up to 30ft / 10m (open air) |
| Waterproof Rating |
IP65 |
| Dimensions |
3.5" × 2.5" × 1.2" |
| Compatibility |
All 12V negative-ground vehicles — Car, Truck, SUV, RV, UTV, ATV, Boat, Generator |
Why Choose iFJF
iFJF Direct is an IATF 16949 certified auto parts manufacturer with 3,000+ verified Amazon reviews and a 4.9★ rating. Every kill switch is QC tested before shipping. Backed by 30-day hassle-free returns and responsive US-based support — not a faceless dropshipper.
Frequently Asked Questions
Q: Will this work on my diesel truck with dual batteries?
A: Yes. The 250A continuous / 500A peak rating handles diesel trucks with dual battery setups. Connect it to the main battery negative terminal to disconnect both batteries through the chassis ground. Works on Ford Powerstroke, Ram Cummins, GM Duramax, and all 12V diesel platforms.
Q: Can I use this as a fuel pump kill switch?
A: Yes. Wire the switch in-line with your fuel pump power circuit instead of the main battery. When the switch is OFF via the app, the fuel pump won't prime — even if someone has your keys. Great hidden anti-theft layer.
Q: What happens if my phone dies or I lose Bluetooth connection?
A: The switch stays in its last-set state. If it was ON, your vehicle functions normally. If it was OFF, it stays OFF. We recommend pairing with a second phone as backup. No physical key override is needed for daily use.
Q: Does this drain the battery when parked?
A: The Bluetooth module draws ~5mA in standby — less than your car's clock. Over a month of sitting, it drains under 4Ah. For long-term storage (3+ months), we recommend a battery maintainer regardless of whether this switch is installed.
Q: Is this legal for on-road use?
A: Yes. Battery disconnect switches are standard equipment on many commercial vehicles, race cars, and RVs. This is a convenience & security device — it does not modify emissions or safety systems.
Q: What's the difference between this 250A model and the 120A version?
A: The 250A model uses thicker copper bus bars and a higher-rated relay, making it suitable for diesel engines, vehicles with high-compression starters, and dual-battery systems. The 120A model is adequate for most gas cars and small UTVs. If your starter draws over 120A (common on V8 trucks and diesels), choose this 250A model.
Q: Can I control multiple switches from one phone?
A: Yes. The app supports pairing with up to 8 switches. Ideal for fleet vehicles, RV battery banks (starter vs house), or a garage full of toys.
Q: What's your warranty?
A: 30-day no-questions-asked returns + 1-year warranty against manufacturing defects. Contact support@ifjf.net with your order number.
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