Shopping Cart

Your cart is empty.

Your cart is empty.

Top Post Car Battery Disconnect Switch, 12-48V Heavy Duty Battery Cut Off Switch for Cars, Boats, RVs, Trucks, Marine - Negative On/Off Kill Switch, Easy Install & Durable Design

Free shipping on orders over $29.99

$15.99

$ 7 .99 $7.99

In Stock

About this item

  • Safely Disconnect & Protect Your Battery: This 12V battery disconnect switch prevents excessive battery drain by safely cutting off power when your vehicle or boat is not in use. It can be used independently or integrated into other electrical circuits for added convenience
  • Versatile Safety Protection: Ideal for 12-48V systems, this switch provides reliable circuit isolation and protection. It’s perfect for cars, boats, RVs, campers, trucks, ATVs, and other electrical equipment
  • Durable & High-Quality Construction: Built with high-grade ABS plastic housing, solid copper studs, and nuts, this switch ensures long-lasting performance. The back cover isolates terminals for enhanced safety and durability
  • High-Performance Specifications: Featuring an on/off design, this switch supports continuous operation at 275A (12V), handles intermittent currents up to 455A, and withstands transient currents of 1250A for reliable performance
  • Easy Compatibility: Designed for 15.5-17 mm negative battery terminals, this switch ensures a secure fit. Avoid using it on terminals outside this size range to prevent disconnection issues



Product Description

This is a 12 volt battery disconnect switch that can withstand very high currents, has a flexible easy to use knob and a long life.

Very easy to install, it can be installed directly without modification, no additional battery cables or lugs are required, it can easily isolate and secure the electrical system.

Pure copper terminals have good conductivity. The shell is made of high quality plastic with good waterproof performance, as well as high temperature and corrosion resistance, good safety performance.

Prevents excessive power drain and safely disconnects the battery when the vehicle or boat is not in use.It is widely used in cars, boats, RVs, campers, travel trailers, trucks, ATVs, and other electrical equipment.

Operation Mode ON-OFF
Current Rating 275 Amps
Operating Voltage 12 Volts
Actuator Type Rotary
Item dimensions L x W x H 5×2×1.8 inches
Circuit Type 2-way

Kal
Reviewed in the United States on February 6, 2025
Had this a couple of months and is working as expected. Just turn the knob and it disconnects the negative terminal of the battery.Just a note to beware of the ramifications of disconnecting the battery. It will clear your radio settings and your car computer settings. Maybe even your car codes. For me this has not been a problem but might be a problem on some other vehicles.I would recommend this product.
nicholas eames
Reviewed in the United States on February 28, 2025
Product as described.Delivered on time.
Devilz
Reviewed in the United States on February 26, 2025
I installed this battery switch on my Mazda Miata due to constantly having a dead battery because we don’t drive it enough, it was easy to install and has a low enough profile that it can still be operated when mounted on to of the battery. Even after multiple engine starts the switch does not get warm. Worth the price and I plan to order more for other uses.
FCasale
Reviewed in the United States on February 20, 2025
Some top terminal batteries have recessed terminals which limits the direction of installation.
A. L. Lindsay
Reviewed in the United States on January 4, 2025
The female end is too small to fit easily over a standard U.S. lead-acid battery post. The male post is too small to properly mount a standard U.S. battery cable female end. When trying to tighten down the battery cable female end, the plastic broke and made the product unusable. However, it did expose the inside where I could see there was only one small contact point that would be made for the transfer of current. It would be totally inadequate for anything more than a few amps draw.
JP
Reviewed in the United States on January 22, 2025
I have an old 4runner which I don't drive very often and the battery used to drain all the time. I got this battery disconnect and now when I go to use the car, I just turn the knob and I can start my car and be on my way. Now, every time you disconnect the battery, the car computer resets but since this is a much older car, it doesn't seem to affect it in any way. Installation was easy even though the way my cables were laid out, I had to bend one of the cables. Overall, it works and does what it's supposed to do.
Tbone
Reviewed in the United States on January 18, 2025
I ordered this ‘Car Battery Switch Disconnect’ to use in my ‘spare’ pickup truck. It doesn’t get driven a whole lot, and the battery sometimes goes dead. I have a similar switch on my motorhome batteries, so I figured this one might be a good option.This ‘Car Battery Switch Disconnect’ is quite large. It’s fits under the hood of my truck with no problem, but I could definitely see an issue getting it to fit underneath the hood of a compact car.This switch does work as intended was easy to hook up. No problem there.But there is one thing I don’t like about this ‘Car Battery Switch Disconnect’…it only turns one way. The switch we have in our motorhome like this turns a full 360 degrees so you have two on positions and two off positions. This one only turns 90 degrees and only had one on/off position. It’s a minor complaint I know.All in all, this ‘Car Battery Switch Disconnect’ works as it should. The quality is ok. It’s just very large. Make sure you have the under-the-hood room before ordering it.
Garry B.
Reviewed in the United States on December 29, 2024
havent installed yet but looks good if something changes I will repost
Recommended Products