I have been reading all I can about replacing lead acid batteries in my 2020. 2401w. I saw your list of replacement items and see I would only need the batteries themselves and the LiBIM since my current PD4060 has the lithium switch on it. BattleBorn however is telling me not to use the LiBIM because it will over tax my alternator and I should remove the LiBIM and use a DC to DC charger 40A version. Have you ever seen crazy high charge amps when you start the motorhome with low BB batteries?