Yeah, I wish I would have found this thread sooner. I got one b/c I thought I needed it. They should say on them: Not intended for car audio use. 4x4 or off road use only!
I am in the middle of a build, I just got all my electrical finished, only to see the rear battery not seem to charge. Although, it is charging, just barely. When running, the front battery is at 14.1 and the rear is 12.8 - That shit just aint gettin it!
I was told that adding a voltage regulator could fix this issue, but I aint spending anymore on it, I'm just gonna do away with the isolator.
If anyone needs one, I have an ALMOST new Stinger 200 amp relay/isolator for sale. I just paid over $60 for it, I'll take $40, plus 10 to ship it! Still have original package, only installed for 24 hrs.