Thanks everyone for the input and suggestions. After getting the batteries started on charging from an external charger and realizing from your input that the disconnect switch must be on to have the converter charge them. Last evening they were showing charged after disconnecting the 110. I put the 110 back on and will let them charge to this weekend and then I will test the voltages like was suggested.
Silly me to believe that disconnecting the batteries didn't really fully disconnect them.
I like the simple device that was suggested so I can fully disconnect the batteries from all potential draws. Also if the batteries are fully dead, the disconnect switch will not work even if plugged into 110.
Hopefully the battery voltage will show good and I will also load test them to be sure.
I am also going to add a Shore connection next to where I park the FR3 so it can remain connected without cords going across the driveway.
Thanks again to all the help and suggestions.