Originally Posted by Carl n Susan
The 13.n Volts is the converter output to charge the batteries. You can look at the Charge Wizard LED to get an indication of the charge phase the converter is in but I haven't found that to be to dependable.
Let it do its thing for a few days, then disconnect the shore power (or converter), let the batteries rest for 30 minutes or more, and then check the voltage at the InCommand panel.
I did the test suggested by Carl…
Unplugged from shore power this morning
Checked InCommand voltage 2 hrs later - 12.4 volts
Checked InCommand at 6 hrs - 12.4 volts
Maybe it’s not totally gone to battery heaven yet. I bought these batteries from Sams about a year ago (1-23-2022) and they have an 18 month warranty…so I suppose I will get a minimal amount in trade from Sams - but they rarely have group 27 AGMs in stock. I really don’t want to go back to lead acid marine batteries but they do have Duracell Group 27s in stock for $99.
Looking for recommendations for other brands of AGMs
Never have considered 6 volt batteries - are they all the same? Will 2 x 6 volts = same as two 12 volt? I need some schooling’.
Update on the Cummins Onan P4500i. I found some videos on the choke motor coming unplugged. Took my case off and mine was plugged in. I charged the battery and it did fire up and run, but it surged really bad. Performed the easy low speed carb jet clean but it still surged. I dropped it off at the Cummins Service Center in Austin this morning so they can get it running right.