OP says it was constant 48a for 30 or so minutes then tapered if I got that right (hard to tell) while voltage rose from 13.5 to 14.1
That would be bulk and put 24 or so AH in less something for heat so call it 22AH? Being in bulk is what made me suggest way back that his charger was set to only do the 48a. However I can't match the rest of the numbers up for his size of bank. At 48a he would hit the acceptance rate curve in the mid-80s SOC and with only 22AH done before that, he must have started in the 80s. But the other calculations for 70-88 seem to come out right too.
I don't get it.