Originally Posted by sgtlm17
Yup finished testing. When engine running house batteries charge. Engine off plugged Into to shore power only house batteries charge. I will probably do something to keep chassis battery up. Battery tender, Trik-L-Start, etc.
Do you have a Ford or Chevy chassis? I can't tell from the photo in your tag. If you have a MB chassis, ignore my comment below.
How long did you wait to read the voltage at the chassis battery after the plugging in the shore line? Our 2011 Sunseeker has an Intellitec BCC, which does not connect the coach batteries to the chassis battery until the coach system is above 13.1 volts for more than 2.5 minutes. I think FR changed suppliers, so yours may work differently, but the concept should be the same. If the coach batteries are low, it may take a while for the system to rise above 13.1 volts. If you don't have documents on your BCC, look on line for it to find out the voltages and timing for yours.
By the way