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Top Post Battery Disconnect Switch, 12-48V Heavy-Duty Battery Kill Switch for Cars, RVs, Boats and Vehicles (Negative, On/Off)

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$13.99

$ 7 .99 $7.99

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About this item

  • ON/OFF CONTROL: With a 275A continuous current rating and up to 1200A instantaneous current, this switch is compatible with 12-48V systems. It’s good for cars, RVs, boats and other vehicles
  • PREVENT POWER DRAIN: Disconnecting your battery when not in use helps prevent power drain and extends battery life. This switch is perfect for vehicles and boats in storage or seasonal use, offering a safe and efficient way to manage power
  • CONVENIENT INSTALLATION: This battery disconnect switch is designed for quick and easy installation, connecting directly to the top post battery negative terminal without the need for additional cables or modifications. Its design ensures secure isolation of your electrical system, making it perfect for beginners and DIY enthusiasts
  • HEAVY-DUTY CONSTRUCTION: This battery switch is made of high-temperature resistant ABS material and brass connectors for long life. Its sturdy construction ensures safety and reliability, protecting your battery from accidental short circuits
  • FITS STANDARD TOP POST BATTERIES: Specifically designed for standard top post batteries with 15-17mm negative terminals, this switch ensures a secure fit. Always verify your battery terminal size before installation to ensure compatibility and avoid connection issues



Product Description

battery disconnect switch
battery disconnect switch 12v

battery disconnect

The switch is rotary operated for long life.

battery disconnect switch 12v

Compatible, lockable and combinable with other switches.

battery cut off switch 12v

Made of high-temperature resistant ABS material, it is easy and safe to use.

car battery disconnect switch

Adam Wampler
Reviewed in the United States on March 3, 2025
This has been an impressive disconnect switch so far. It's pretty much universal for any battery/cable setup that uses standard round terminals. It takes just a few minutes to install and works just fine.All you've got to do is unfasten your negative cable from your negative battery terminal and install this switch between your cable and battery. Once it's on and tightened all you need to do is turn the switch to disconnect/reconnect the current. As long as the internal mechanism in the switch dial doesn't prematurely wear out after a few years I think this is an excellent product for the price.
Jay
Reviewed in the United States on March 16, 2025
Feels pretty robust and does work.Installation is pretty easy and the price is good.This will help me from head batteries over the storage season.Will update if any thing changes!
Sally Lockhart
Reviewed in the United States on March 13, 2025
Not a badly constructed switch, but pretty worthless as the terminals don't fit US standard battery posts, they're too small. The "female" won't fit over any of my battery terminals and the "male" is so small the battery connectors can't close securely on it.
Quality First
Reviewed in the United States on February 28, 2025
This is a nice battery disconnect. It's not too big and bulky but easy to grab on and twist. It seems to do a good job of breaking the connection and connecting again no question of whether you have it on or off. It is easy to install as long as you have some extra room by your battery. I am using this on farm equipment so it works good for that I'm not sure if it would fit in a tight spot under a hood.
Drachen
Reviewed in the United States on February 27, 2025
Useful for vehicle batteries that tend to sit for longer periods of time between uses. Prevents any usual low current drain that will drain the battery quicker than a complete disconnect.Its inline shape works well when there is no need for a pivot point to fit in a tight compartment. No pivot point to come loose or corrode. Remove battery cable, connect to switch, and connect switch to the battery terminal. Easily turn switch knob to on or off position as needed.Being used in a RV tow vehicle where the vehicle sits for periods of time between camping trips is working well. I find fully charging the battery prior to disconnect helps prolong holding a charge. How long depends on a lot of factors and you will lose any device's memory that relies on the battery, like the clock and station settings on a stereo. Eventually the batter will discharge on its own, disconnect just helps prolong how long that takes.
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