Bedlam wrote:
What I have not seen posted is the fact that even if you use like chemistry batteries in the camper and truck, the capacity and age of the different batteries also affects charging (in addition to the small gauge trailer plug wiring). When you look at the diesels with dual start batteries, they have to be changed out in matched sets to keep optimal charging and power delivery (discharging). Putting in a DC to DC charger helps overcome these differences.
My two lifePO4 (560ah) will charge at 50 amps until they are almost completely charged with the low internal resistance unlike lead acid or agm.