Nilight Remote Battery Disconnect Switch 12V 250A Car Anti-Theft Kill Switches Upgrade Prevent Power Drain with Wireless Remote Control Relay Fobs Black Negative Cable for Auto Truck RV Boat

<p><b>Product description</b></p><p><b>Nilight Remote Battery Disconnect Switch</b></p><p><b>Remote Control 12V 250A Car Anti-Theft Kill Switches</b></p><ul><li><b>Electrical Parameters:</b><ul><li>Volts: 12V (compatible with 11-15V voltage range, adapting to normal fluctuations in vehicle battery voltage during charging or use)</li><li>Working Current: 250A (high-current rating, meeting the power demands of heavy-duty vehicles and high-power accessories like winches or large LED light bars)</li></ul></li><li><b>Temperature Adaptability:</b> Working Temperature: 40℃-85℃, able to withstand extreme environments such as high-temperature engine compartments in summer and low-temperature winters, ensuring stable operation in diverse climates.</li><li><b>Material Composition:</b> Adopts a nylon flame-retardant shell (prevents fire risks from overheating or short circuits) with a pure copper inner core; the internal coil is also made of pure copper—balancing safety, durability, and excellent electrical conductivity.</li><li><b>Complete Package Includes:</b> 1 × 250 amp car battery isolator, 2 × remote controls, 1 × red insulating sleeve (for safe wiring and anti-electric shock), 1 × metal clamp (for secure vehicle mounting), 2 × flat copper sheets (enhances current transmission), 1 × terminal block (simplifies wire connection), 1 × install copper pillar (aids in stable installation), 1 × black negative cable wire (provides dedicated grounding wire for circuit completion).</li></ul> <p><b>Product Features<br></b></p><ul><li><b>Wireless Remote Control Convenience:</b> Features a wireless remote control design, equipped with two pre-paired remote fobs—no extra pairing steps are needed, and they can be used right out of the box. The remote control has an effective range of up to 164 feet, allowing users to operate the switch from a distance (e.g., disconnecting the battery without approaching the vehicle), which is flexible and practical for daily use.</li><li><b>Heavy-Duty Current &amp; Voltage Performance:</b> Built for 12V heavy-duty scenarios with a 250A rated current—higher than standard switches, effectively improving reliability when powering high-demand equipment. It is widely suitable for 12V vehicles including cars, trucks, RVs, and boats, adapting to both daily commuting and off-road/nautical use.</li><li><b>High-Conductivity Copper Core &amp; Coil:</b> The pure copper inner core and internal pure copper coil minimize current loss during transmission, ensuring efficient power supply and avoiding overheating caused by poor conductivity. The nylon flame-retardant shell further protects internal components from external impact and high temperatures, extending the product’s service life.</li><li><b>Dual Practical Functions: Anti-Drain &amp; Anti-Theft:</b><ul><li>Anti-drain: When the vehicle is idle for a long time, the switch can disconnect the battery to prevent power loss from the vehicle’s standby electronics (e.g., car stereos, alarm systems), avoiding the trouble of a dead battery.</li><li>Anti-theft: Acts as an anti-theft "kill switch"—cutting off the battery power via remote control disables the vehicle’s startup system, significantly reducing the risk of theft and enhancing vehicle security.</li></ul></li></ul>

• Product Specification: Rating for 250A 12V,heavy duty design remote control switch, effectively enhances the reliability when use.Perfect for Various Automotive vehicles such as cars, trucks, boats, RVs etc
• Remote control: This battery disconnect switch comes with two paired wireless remote control keys, the remote control can be controlled within 164 feet, reducing the risk of theft. It is also convenient to maximize the storage of car battery power, effectively protect and extend the service life, press the remote control when the vehicle or boat is not in use, disconnect the battery in time and safely to avoid battery exhaustion
• Effortless Installation:The negative line of the power-off switch has been preconnected,fix the battery clip to the negative pole of the battery, and connect the red wire to the positive pole of the battery
• Superior Quality: This relay consists of nylon flame retardant shell with pure copper inner core. High quality material is durable and has the characteristics of heat resistance, corrosion resistance and strong electric conductivity.Internal use of pure copper coil, conductive performance is strong, low loss rate
• Package Includes: 1 × 250 amp car battery isolator,2 x remote controls,1 x red insulating sleeve,1 x metal clamp,2 x flat copper sheet,1 × terminal block,1 × install copper pillar,1 × black negative cable wire