The sad thing is the modern RV is meant for the masses. This means it's plugged in all the time. Plugged into your house, charged by your truck while in transit, plugged into the mobile apartment complex power pole.
Is your converter charger a WFCO by any chance? Best thing you could do for a boondocker is the
Trimetric battery monitor.
Want to understand deep cycle batteries and how to properly charge them?
http://www.solar-electric.com/deep-c...ttery-faq.html Maybe you already know this, if so it's info for others.
In the interim if you have a volt meter what is the voltage at the battery terminals when you go on the generator? You might also want to get a clamp on DC amp meter like the one in the attachment and see what current is actually getting to the batteries. In short with a battery at 60% SOC (state of charge) you should see a voltage under charge start out in the low 13's and steadily climb to the low 14's over an hour or so. During this time you should see amp flow close to what your converter charger is capable of. If your converter charger is a WFCO this will not happen.
I mounted a
PD9245C 6 foot from my batteries and connected it with custom 6 gauge cables from
Genuinedealz. I turn off the built in converter's circuit breaker and plug this bad boy straight into the generator. Progressive Dynamics has some good info on how long it takes to charge a battery at different voltages.
Jeff