Being fairly new to rving I am having a problem diagnosing a problem I have.
I have a 1988 Southwind that I am trying to determine why the house batteries are not charging. I thought that the house batteries were bad, only 15 months old Group 27, while on a trip when the generator quit while running down the road. Not knowing what was wrong I replaced the batteries. They only lasted about 7 days of traveling before the new batteries were mostly dead.
I checked the voltage at the battery isolator relays and the voltage coming from the alternator was 14v but the out put was only 11v, which is the volatge of the house batteries. Should I be looking at the battery isolators that are controlled by the isolator. I have attached a file with what the wriing looks like.I hate throwing money at the problem so any help is appreciated.