Originally Posted by 73shark
Doesn't the alternator charge the house batteries anymore?
It should, if the BIM allows it to happen. I had my Interstate at the dealer for some repairs, and they left the house systems energized while it was parked. The house system got depleted all the way down to 9.9 volts. Naturally, that caused the BIM to separate the house and chassis systems.
I was able to plug into shore power for about half an hour and got the house batteries up to about 12.3v (65% charge) before I had to head back home to beat some nasty weather. That was still too low for the BIM to re-integrate the house and chassis systems, and so no charging at all from the alternator on the drive home, despite being on the road for over an hour.
I've been using the Interstate as my daily driver every day since then, and the alternator still
isn't charging the house batteries. But the good news is, my solar panel is
charging them, albeit slowly. The rate of charge has gone up about 5% each cloudy day, and 10% each sunny say, and stands at about 90% as of yesterday.