Just had surgery for Spinal Stenoisis in Feb.
Have a great doctor in Nashville. Operated on in the morning and home same day. Was up walking an hour after surgery.
Only you can tell when it is time to get it fixed the right way.
Not knowing make and model MH.
But some MH's the powe fird has to be plugged into the generator outlet to work. Same cord you plug into shire power conn. Look for a matching plug conn. In where cord is stored.
Your chassis battery only charges off the engine. Unless a device like TrikLStart was added.
The house(coach) battery's charge as stated. They will charge faster when driving fish the road.
Make sure you have you battery disconn. Switch on.