Side Post Battery Master Disconnect Switch
Key features
- •BEWARE CHEAP CHINESE KNOCKOFFS!!!
- •Simple twist of a knob provides a convenient way to quickly disconnect and reconnect power from an automotive battery.
- •Clean, solid, low profile connection to GM side post batteries.
- •Simple to disconnect your battery to work on your vehicle or the knob can be removed to prevent theft.
- •Tested to exceed a continuous 200 amp load.
BrandGAMA Electronics
CategoryBattery Switches
Side Post Battery Master Disconnect Switch
List Price: $25.10$22.59DEALYou Save: $2.51 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.1
out of 5
Based on 10 reviews
5★
40%
4★
30%
3★
10%
2★
10%
1★
10%
Works as advertised on GM-style side terminal batteries.
Fauster•August 30, 2017
Fits perfectly on a 2003 Buick Regal. Followed the instructions using only the supplied hardware and the switch works as advertised. My 90 year old father-in-law had his licence revoked but insists on keeping his car. This will prevent the slow but steady battery drain and should be enough of a deterrent to keep him from trying to drive the car when we're not around. The roads should be slightly safer now!
not meant for the stupid Dodge Stratus '05 (car now for sale)
JAW058•July 28, 2017
I'm sure it would have worked if a parasitic drain was the only problem the stupid Dodge 05 Stratus sedan had, but the post didn't quite fit properly under the wheel-well and it actually started to bend at the plastic area (middle) because the cables were situated in such an awkward design that there was no easy way to install. I would have returned it but now it was a little 'used' and it wasn't the fault of the manufacturer. Just the stupid folks who thought up the idea to put a battery in the Dodge Stratus under the wheel-well so that anytime you need to change the battery you have to first take off the tire and then pull off the plastic covering the front of the wheel area (which was mutilated by the folks who did it the first time thus now totally off). (car now for sale)
It's junk!!! Don't trust it!!!
Billy Bob•July 10, 2017
This disconnect is junk! I decided to buy American and spend three times what I could've gotten the same switch for because I figured it would be better quality. Wrong assumption!. The crimps fell apart, the switch fell apart, very poorly made! I had to zip tie the switch together, to get my winch wired, until I can find a decent replacement product,. I did use the switch only because i I needed to hook up the winch. And only choose to use it after I rebuilt it to We're it was safe to use. . But believe me. For a electrical component. Do not trust this disconnect.
Almost Perfect - Bought for 2000 Dodge Stratus
Israel Hernandez•July 5, 2017
This is perfect. I have a parasitic drain in my 2000 Dodge Stratus that I haven't been able to find, so I installed this. I definitely recommend using two zip ties to hold the switch together (as someone mentioned in another review). Place them as tight as possible on both sides of the knob. If you don't, the plastic and metal pieces can become separated and the knob won't be able to meet the thread on the other side.
Well-built, made in the USA
JRB•May 4, 2017
I really wanted this to work on my 2003 Chev Silverado 2500HD Duramax. However, the stock bolt on the battery cable is too short to pass through the cable connector and this disconnect switch mounting hole. There was no way the bolt would even start to thread into the battery terminal. So, unless your stock battery cable bolt is long enough--or you can source a longer bolt--this simply isn't going to fit.
It appears to be very well made. The design is interesting though, in that it's just a threaded knob that disconnects the two sides of the switch, effectively disconnecting the ground when you loosen it far enough. The problem is, the instructions tell you it's only necessary to turn the knob counter-clockwise 1/4 turn to disconnect the negative side of the battery. I used a meter to test continuity from one side of the switch to the other, and found that I had to turn it at least one full turn (if not more), to get a solid disconnect.
It appears to be very well made. The design is interesting though, in that it's just a threaded knob that disconnects the two sides of the switch, effectively disconnecting the ground when you loosen it far enough. The problem is, the instructions tell you it's only necessary to turn the knob counter-clockwise 1/4 turn to disconnect the negative side of the battery. I used a meter to test continuity from one side of the switch to the other, and found that I had to turn it at least one full turn (if not more), to get a solid disconnect.
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