I have 6 X 100 amh LiFe from Battleborn. Connected to 945 W solar by the Victron MPPT 250/85 solar controller.
With average usage of little to 6 amps the batteries slowly drain as little time is spent in absorb and more in float.
Previous question was solved with heavier cable. I show only a 0.3 V difference between the controller and actual battery V with 2 AWG cable not more than 2 m.
The preset is on LiFe with absorb at 14.2 V and float at 13.5
Any suggestions are appreciated