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A battery disconnect switch is a simple device - it disconnects the main power coming from the battery in a vehicle. Easily built into any electrical system, a battery disconnect switch allows for much simpler winter maintenance and storage of your valuable battery. They also serve as a major safety feature that in this day in age is almost always required by nearly every racing sanctioning body, to safely and quickly disconnect power to the car or truck in the event of a wreck on track or technical issues with your car. Don't get shocked - Speedway Motors has your back with a great selection of battery disconnect switches from top manufacturers like Longacre, Painless Wiring, Moroso, Lokar and more!