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Review on ๐Ÿ”‹ Ampper Battery Switch: Efficient 12-48V Battery Cut Master for Car, Vehicle, RV & Boat (On/Off) by Christopher Gonzalez

Revainrating 5 out of 5

Defeat pesky energy vampires with this sturdy switch.

You can spend hours or lots of money trying to find every power vampire in your van. I spent two seasons where my battery was completely dead whenever I returned to my RV, despite my best attempts to turn them all off. Then, after the second season, my battery stopped charging. My RV dealer suggested a switch and after some research I went with it. There are other cheaper and simpler options, but I wanted something comfortable, safe, and durable. This switch really fits. It is very well made and is made of high quality plastic. The switch feels very solid, it's easy to see if it's on or off. Firstly, there are no instructions for this switch, they are mostly here on this page. You will need an extra battery cable for installation. This switch has no polarity, but the manufacturer recommends installing this switch on the ground (negative) side of the battery as it is safer. This makes sense as any owner's manual or mechanic will tell you to connect the positive terminal first, then the negative terminal when installing the battery. When removing one, first remove the negative and then the positive. That's what you do when you flip this switch to the negative side. It took a while but I managed to find a 2 gauge black battery wire that worked for me. : https://amzn.to/2VGcEJg. This switch requires a 3/8" connection and if you are installing it in a home or boat your battery will likely require a 3/8" connection as well. Keep this in mind as there are also cables with 5/16" spade lugs (used on motorcycles and other smaller vehicles) either on both ends or on one end. The 18 inch length was the perfect size for me as it allowed enough slack for movement. cover the box lightly. The kit includes four hex bolts, nuts and a bottom cover. What is not clearly shown is that each of the four side panels are removable, allowing you to choose the one that works best for your application. Through trial and error I figured out the correct size drill bit to drill the mounting holes. I decided to install this switch on top of the battery box. I started by placing a bare switch (bottom plate removed) on top of the lid and marking each hole to drill. Using a 5/16" drill bit, I drilled each hole. I then removed the panel opposite the "on" indicator as I wanted the "on" side to the front and the wires to the back. I pinned mine I then made sure the switch was in the off position and connected it to my RV's ground wire (negative) On my RV this wire is white and you can clearly see it's on the Frame is connected to ground and made sure my switch was still in the off position and connected the other end of my extra wire to the negative battery post.You won't see any sparks when the switch is off.I replaced the bottom cap to have extra weather protection as the bolts protrude slightly beyond that. I tightened the cap bolts using the standard hex sprocket that came with my kit, so I used a drill/screwdriver and held di e nut in the cover with a ratchet. After that you can put the cover back on the battery. x and try. Some photos from the manufacturer show the switch being installed INSIDE the battery compartment. There is no template for this, so you need to figure out the size of the hole for the switch. It's probably more weatherproof and although I have Rotozip (you can also use a hole saw drill bit if you're the right size) I wasn't sure I had enough room with my battery and thought it was overkill. Also attach it to the top of the cover so the cables exit at the bottom. However, I figured this method would be more likely to get water in if pushed off the road or off my truck tires. So I figured the top cables coming out the back would be the best option. You could probably use silicone to seal it if you want, I can do that, but that's probably overkill too. IN USE This switch is easy to use, flip the switch on and your RV will provide power, you will also need it to charge the battery when your RV or tow vehicle is connected to power. I turn it on when I get back to my RV. Once you put your RV into short- or long-term storage, turn it off and your days of looking for power vampires or going back to a dead battery are over. I hope my new battery will last more than two seasons.

Pros
  • Happy so far
Cons
  • I'll write back later