Based on this image, and the data logger, I know the battery attained 14.4V at around 19 minutes. Here at 20 minutes, with the voltage now held steady at 14.4V (green constant voltage light on) we can see that the charge current has already dropped from 42A to 41.5A or a .5A reduction in accepted charge current into the battery.


If we assume that bulk was 100% efficient, and we will for round numbers, the energy returned to the battery at .4C during bulk charging looks like this:


42A X .32 Hours = 13.44 Ah


If we know the battery had 47.15 Ah left in it, at 49.3% SOC then:


47.15Ah + 13.44Ah = 60.59 Ah stored in the battery


60.59 Ah as a % of 95.69 Ah (tested capacity) = 63.3% SOC


If you're paying attention this battery, when charged at .4C from 49.3% SOC, stayed in BULK/CC for 19 minutes and entered ABSORPTION/CV charging, where current begins declining, at 63.3% SOC.


This clearly shows how charge current affects the SOC transition point from bulk to absorption charging.