Quote:
Originally Posted by jhklhume
Have 2012 Tiffin Allegro bus. Chassis batteries run down while plugged in to 50 amp service.
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Not all coaches are wired to charge the chassis batteries from the converter, and those that are may have a faulty device (like an echo charger). There are always parasitic drains on the chassis batteries and if not being maintained by the converter, they will die. How old are your chassis batteries?
Some with specific knowledge of the Allegro Bus will narrow this down for you, soon.