Have 2017 Thor ACE, battery dead, jumped started and let run for about an hour. Unplugged from 30amp electrical while in RV barn. Few days later went out to Thor and discovered house batteries are dea...
Depending on many things house batteries run down swiftly and it takes several hours to fill 'em back up. Even longer if charging with main engine I have an 80 amp converter it charges both house (originally 220) and Chassis (73 amp hours) So figure 300 amp hours.. Takes six hours to fully charge from 50% house. I now have over 500 AH of house batteries Takes a bit longer.