Originally Posted by Whynot
Today I tried to turn on the battery and nothing... I drove the RV as it has the underhood thing.. still nothing. I connected to shore power .. still noting so now what? I believe it is a 100W AGM battery unt=der the chassy. Please help as I wanted to take the RV from Santa Barbara to Fort Bliss to see my son.
Is this a lithium battery unit with the single AGM battery?
If so, and the AGM is dead, there will be no voltage seen by the UHG or the shore power, so they won't initiate charging.
You can hook up another battery parallel to the AGM to get charging started, use an old school fixed voltage battery charger, or even jump the coach battery from the vehicle or another vehicle. Once there is voltage on the battery from a source, the UHG and shore power should both start charging. Probably easiest to use the shore charger first to get some charge in the AGM once you get it initiallized, and once you have some charge run the engine or go for a drive to make sure the UHG also starts up to finish the charging.