[86loco]

I have been having problems recently with my three interior 8D deep cycle acid batteries. They charge 3 ways:

1.With the bus running with the 350 amp generator.

2. Running the 12.5kw gen-set.

3. Plugging into the house current.

With the bus running it charges at about 13.6 but with house or gen-set it only charges at 12.4 so it won't give it a full charge. I have a 75 amp charger. Any ideas for this problem? Thanks.