I have discovered that the Itasca Navion's have the same issue with the Chassis battery not being charged when connected to shore power or while running the generator. I have a couple of questions (and thanks for your help as always).
1. I've located the Solenoid and Battery Mode compartment that is beneath the passenger seat, would it be possible to install an Echo Charger without having to remove the passenger seat? The access panel seems sort of small (roughly 5" x 8").
2. I have Varta batteries beneath the driver's foot area of the floor, is it safe to trickle charge these with a battery tender without removing them from the vehicle? (There is a place in the engine compartment where jump starting or trickle charging can be done, but else where in the manual it says to only use approved chargers if charging the batteries while still in place.)
Lastly, the Varta batteries do not seem to have water fill caps, does anybody know if these batteries are not intended for addition of water?
Thanks, sorry for the basic questions, but I like to ask you all before I call the local Freightliner shop where Sprinters are sold....