House battery voltage under draw?
I have a new (to me motor home) and an upgrade from my old one. In my old RV, I had to check the house battery voltage manually. With the new rv, I have a switch on the wall. However, when I check t...
Forum Discussion
theoldwizard1 wrote:pianotuna wrote:
Hi tommymsw,
The batteries have never been fully charged. They need to get to 14.8 volts. Driving for 9 or 10 hours for a few days might get the job done.
It is almost impossible to fully charge a house battery bank by simply driving, especially if they are deep discharge batteries ! This has been discussed many times before.
The only way to get a 100% charge on a deep discharge battery bank is by using a top quality multi-stage charger and depending on their state of charge, it could take more than one day.
This very much depends on the RV. For a trailer, it's true that it's hard to fully charge the house battery bank by driving, at least without major upgrades to the systems. For a motorhome, on the other hand, it's not at all uncommon to be able to reliably fully charge the house bank while driving. I know mine does a quite decent job over a day's journeying, and I haven't done anything to improve it over the factory setup.
