Oh my story on Converter failure.. SUnday of course (not chance of getting a repalcement) so off to Auto Zone for a very nice Deltran Battery tender DELUX. this unit does 2-3 amps in tender mode. 20 amps in BOOST and 70 if you need a jump start.. Wi-Fi remote from an app when it decides to connect.
That took 24 hours to bring the batteries back up to full (I have a lot of battery)
Then the next day it was off to Teknosha, MI (The T/A Truck stop overnight) and the morning after off to Marshall (A couple townships north) to the PD factory where I got a new factory Refurb. Back to The T/A and hooked it up. Finished the install some time later in South Carolina Working great still as I type.