On our way to reservations in puerto penasco mexico, went to get coach in storage and
chassis batteries died The house batteries were fine but would not start engine with boost switch
so jumped started engine with car battery.
drove to sams club to get new chassis batteries installed new batteries with reverse polarity then fixed the connection. drove about 150 miles with generator running and all seemed ok. Alladin showing chassis batteries and house batteries charging parked for the night and discovered the generator was not charging the chassis batteries but was charging the house batteries. Also 12 volt in the coach was registering 12.0 but the house batteries were showing 13.8
and chassis batteries were 12.8. checked the big boy and found 12.7 on one side and 12.18 on the in battery other side. next morning house and chassis batteries both reading 12.5 so started generator and checked house batteries again this time heard the big boy clicking on and off. checked voltage inside coach and readings were jumping from 12.2 to 13.5 then all 12 volt power lost in coach. with generator still running started engine and 12 volt power restored then lost again.
checked all visible blade fuses in battery compartment look good.
should i start replacing big boy, bird not sure what to do next have reservations in puerto penasco mexico.
Any help is appreciated or tech recommendations.
Steve