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Old 08-28-2017, 03:38 AM   #1
Seevee's Avatar
City: st pete
Country: usa
Vessel Model: 400 Mainship
Join Date: Sep 2016
Posts: 2,246
Combiner or Isolator


Looking for some advise on what is better, and isolator or combiner.

On my 40ft Mainship, I have a isolator downstream of the output on the engine alternator. Voltage going in is fine, voltage out on one leg is poor and the other leg is good. Suspect a failed isolator and will replace.

The combiner won't have the slight voltage drop that the isolator has, but are there other advantages or disadvantages?

One side note: I can't figure out what the good side of the isolator is charging. It's not charging the house, starter battery or generator battery. Volts measured on the batteries. Ideas?
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