🔌 Cut the power, not the adventure—stay charged, stay ready!
The Top Post Battery Disconnect Switch is a heavy-duty 12V/300A switch designed for negative battery terminals sized 15-17mm. Featuring a compact groove design, flame-retardant ABS housing, and premium brass connectors, it delivers reliable on/off control for cars, trucks, boats, and RVs. With a surge capacity of up to 1000A and compatibility with 12V-48V systems, it extends battery life by preventing power drain and comes with dedicated support and a 1-year limited warranty.
L**.
Make sure it will fit in the given area of your car
Probably works great, but won't fit in the battery space on a '98 Volvo. Additionally, when trying to return it, a free return requires me to go to an official UPS store which, in myh case, the nearest is 50 miles away. Hardly worth the trip.
B**.
Solid feeling, good quality.
Feels like quality. Red knob is very secure, and rotates 90 degrees to Off when needed. I have a car driven only a few times per year, and this switch helps prevent battery drain when the vehicle is in storage.
T**E
Nice switch, might not work with your battery cable.
This is a nice quality switch. The difference between it and most others that look like this is that it has notches in the case that provide a little extra clearance for the battery terminals. The bad news is that the output terminal is smaller than the US standard, so if your battery cable terminal is the old-fashioned kind with a limited amount of tightening, it won't work.
P**N
Marine quality
Works great on my boat
T**D
Don’t buy stuff from china anymore
Kinda of a flimsy thin back plastic plate that I had to repair with super glue.
B**N
Works as described
I have a truck that doesn’t get driven often and so far this has kept the battery from going dead from just sitting. Works as described.
J**G
Worked perfectly!
I painted it back to prevent corrosion. 5 min to install.
D**D
Cutoff
Works great. Easy install. Came as described.
Trustpilot
3 weeks ago
1 month ago
