[JRTJH]

IRV2,

You MIGHT need new batteries, and you may not. It depends on whether they can be "saved and recharged" or whether the depth of discharge was so great that they were damaged beyond repair/recharging.

I'd first check to make sure that your OEM battery cutoff switch is ON. The converter will not charge your batteries if that switch is turned off. Next, check to be sure your converter output is correct. With the batteries removed from the circuit, you should have 13.6 VDC on the battery cables when connected to shore power. You may have blown a fuse on the converter that is preventing current to reach the batteries.

If the battery cutoff switch is ON, there is 13.6 VDC at the battery cables and the batteries won't hold a charge, then I'd remove them, take them to a battery dealer and have them load tested.

Depending on what you find, hopefully, one of the above "conditions" will fix your problem.

Let us know what you find and good luck.