Yosemite Sam1 wrote:
I understand that modern RVs are not equipped to go on battery charging minder mode that will prevent overcharging even if connected to shore power for long.
It's the opposite. The converters in older rigs (like pre-2000) can boil the batteries. Newer converters will go to a float charge. I keep mine plugged in 24x7 and I'm on my 5th season with a pair of deep cycle Wal*Mart batteries and an updated converter. The batteries are fine.
Depending on the rig, it may not keep your starting (chassis) battery charged. If not, a Trik-l-Start or equivalent will borrow the charging from your house converter to keep your chassis battery charged as well.
