The wireless 12V car battery disconnect switch (Model 1) is an anti-theft and battery preservation system designed to remotely kill a vehicle’s power system via a latching relay. It is specifically used to prevent power drain during long-term storage and to deter theft.
Key Specifications
Operating Voltage: 12V DC (Work range: 11V–15V).
Current Capacity: Typically rated for 200A continuous current, with some models handling a starting current up to 360A for <10 seconds.
Standby Consumption: Extremely low, often as low as 0.005A (5mA), which is significantly less than most modern car electronics.
Remote Range: Up to 160 feet (48 meters).
Safety Feature: The magnetic latching relay remains in its previous state even if power is interrupted, ensuring the circuit doesn’t accidentally flip.
Practical Benefits
Preservation: Prolongs battery life by 2–3 times by eliminating parasitic drain from clocks, alarms, or older wiring.
Convenience: Allows you to isolate the battery from the driver’s seat or outside the vehicle without opening the hood.
Anti-Theft: Effectively “kills” the vehicle, making it impossible to start without the remote.
Installation Overview
The device is usually installed on the negative terminal to ensure stability.
Red Wire: Connect to the battery’s positive pole.
Black Wire: Connect to the battery’s negative pole.
Main Terminals: Connect the relay in-line with the main battery cable (one incoming, one outgoing).
Note: Disconnecting the battery may reset modern car features like radio presets, clock settings, and mirror adjustments.
Would you like a more detailed wiring diagram or specific compatibility check for your vehicle model?




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