clg82 wrote:
Anyone else with some input from my previous findings in my last post?
Pretty sure that is a single stage maintenance converter/charger. Puts about about 13.6 or 13.8 volts. Not ideal if you are trying to charge quickly. A few companies make replacement "guts" for that, in the $200.00+ dollar range. Lots of threads on this forum about 3-stage chargers and their pros/cons and reality of what a 3-stage charger really is.
I myself, had almost the same converter in my new/used 5th wheel and replaced it with a 3-stage charger with Bulk/absorption/maintenance. While out camping, I prefer to hit my batteries with a bulk charge of 14.4-14.8 volts until about 90% charged; as opposed to a 13.6V maintenance charge when I need it charged quickly.
Also sounds like your batteries might be done. Need to pull them out and try to get them properly charged and see if they are any good. I don't think your current converter/charger will be able to get them charged back up; whether they are good or not.