Ampper Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off)

Easy to install. Small enough to fit any battery. Works well.

I found this item on Amazon last year and thought it would be just what I needed to make disconnecting my NEG battery cable easier when I knew my car was not going to be driven for a while. Once installed, which is very easy, this switch has worked great without any hassle.I am now a repeat buyer and can say that both purchases have been great.We have 2 cars which are not used often and have always disconnected the NEG battery cable from the battery so as to keep the battery charged when the cars are going to sit around for a few weeks or months at a time without being started.In the past, I had no problem removing the NEG battery cable from the battery by loosening the nut. But to do this you need use your tools, and when you do this over and over, sometimes it makes the nut a little sloppy, after a while, I was not really able to tighten everything down as I would like to do, from the repeated loosening and tightening of the bold/nut.Now that I have installed this switch, it makes the process so much easier! First, I don't need any tools, I just pop the hood and turn the switch to red (off) when I'm not going to use the car for a while.When I'm ready to drive again, I pop the hood, and turn the switch to green. (see pictures)One thing to note, once the battery is turned off, you will need to open your car door via the physical key, because the key fob (push button) will no longer work. Since we rarely used the actual key prior to this, we sprayed some graphite power in the key-hole just to keep everything lubricated in there so the key would turn easy.I hope this review helps, I know this item is made in China and some of them have been DOA, but both the ones I ordered have worked great out of the box and held up for months so far.

If you're looking to isolate the positive post, this one won't fit on the positive as it is sized for the slightly smaller negative post. Even though isolating the negative is typical on car disconnects, this ought to be mentioned in the description somewhere as some may be looking, for whatever reason, to isolate the positive side.

My prime mover doesn't have cutoff switch. It works great . No problems of fitting or voltage passing on 2×12 volt batteries . Did great job

24Vの車用に使用しました。以前はねじ込み式のスイッチを使用したのですが、短期間に接触不良で使えなった為、この製品を採用しました。ねじ込み式と違って入/切ははっきりしている所とスペースが小さく済むので簡単に設置できる所がすごく良いです。