So cruising right along and out of the blue there is no charging. The kid is building a lot of heat (40+C) but nothing is going out to the battery. Cycled power a couple of times with the same results. Shows all the parameters but slowly draining the battery. Going to swap out to a different kid and see if that resolves the issue. Last couple of days there has been no record of input to the battery.
I replace beta unit 37 with unit 36 and my system is back in service. Unit 37 appears to be dead by only generation of heat instead of charging.