Just one note regarding the “will batteries charge when plugged into 110 with an adapter”.....yes they will charge, but the use/store switch must be in use position; or in my coach the separate coach battery disconnect switch must be on. The best way to know you are charging for sure is to buy yourself a multimeter and measure the voltage on the batteries (both coach and chassis) so that when you think they are charging, they are measuring at least 13.1 volts or higher. This verifies all the charging system components required to keep batteries happy are working. There are lots of RV’ers on the forums that have relay failures or breaker trip situations which prevent normal battery charging, and they may not realize it for a long time.
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