Batteries

motor homes are always the hardest to do, while the LiFePO4 batteries are very appealing for the house batteries you do not want them for the starting battery.  this creates a mixed battery chemistry in the motorhome and the easiest way to deal with it is to remove the charging line from the house batteries and put a dc to dc charger at the house batteries that has the power supplied from the charging line, or directly from the starting battery if you want to run a new power line for a larger amperage dc to dc charger.  also look for one with a ignition sense.  this makes it so it won't pull power from the starting batter unless the engine is running so it also acts as a battery isolator.