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How to Install The Battery Isolator
Mount the isolator relay onto the linear purge valve mounting tab of the dual battery tray or fabricate a flat surface to mount the isolator relay
Connect the long red battery jumper to the positive of the main battery and use socket wrench and terminal on the isolator relay
Connect the short red battery jumper to terminal two on the isolator relay and connect the switch-isolator relay wire with big ring terminal to terminal two on the isolator relay
Connect the switch-isolator relay wire with the small ring terminal to the positive terminal on the isolator relay
Connect the isolator relay ground wire to the negative terminal on the isolator relay using 8mm socket wrench and ground within the engine bay
Finished. Perfect for any applicatoin with multiple batteries that need to be isolated including Marine, Mobile Audio, Off-Road, Power Sports, and more.
JOHN A.
2025-08-31 16:16:59
Performed extremely well. No buzzzing or poor connection. Extremely well built and has been working issue free for over 6 months! Instalation can be a bit difficult due to size and weight. Not really a problem.
Customer
2025-08-27 16:02:26
This product works well. It is somewhat difficult to mount. The contact points are a little too close together. These deficiencies are understandable given its low cost and small size.
Rich M.
2025-08-24 13:09:17
The power cut off was effective and worked as described. The item shipped fast and was packed well. My only issue is that the installation instructions were not very good, however with a few minutes of online research you can get what you need.
WN
2025-08-09 11:11:46
Used this to replace the charging solenoid on my diesel motorhome. Originally used a White-Rodgers OEM relay and it only lasted about 18 months. This has been going strong since 2020 and I use my motorhome about 10 months out of the year with lots of miles.
Carson H. Nelson
2025-07-21 17:52:29
Its not a fluke, mine died after 3 months as well. Outside of my return window and out 40 bucks. Shes a turd and doesn't switch anymore
David Sandoval
2025-06-12 10:12:36
Good durability
Angel Eduardo Rodriguez Jauregui
2025-06-04 11:41:03
Excellent!! 100% what I needed
Dave Kulina
2025-05-23 10:07:48
I added extra batteries to run a truck camper without killing my main battery and this works great. Simple to install and i have no had any problems in the pay few months and i use it every single day
Bob
2025-05-14 17:14:28
As described
Zeus
2025-04-01 14:28:29
used as battery isolator in rv,does not get hot like a cheaper model i used to use,very decent quality and heavy built ,pleasantly surprised being a made in china item
Customer
2025-02-01 09:18:13
Package was ripped and then re taped. No big deal. However when I opened it, it seems as if I got a return. Looks like it was already mounted and used. Last but not least there are no markings for positive and ground. Over all not happy nor satisfied
Alexandre b.
2025-01-23 10:12:23
Tres bonne qualité. Fonctionne très bien apres 5000km . Je le recommande
Bruno T.
2025-01-19 12:32:04
Screw for 12 V triggering came loose from inside. Fortunately internal contact is still working. Otherwise the coil was good for scrap. So be gentle while screwing, product is fragile.
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