[floydr]

Math: 159.4 divided by 3.35 equals 47.56 cell. If increased my total cell count from 45 up to 48;
that would be right in the safety zone of it being theoretically impossible to overcharge a pack of balanced cells,

you should be safe with 46/7 cells 159.4/46/47= (46)3.465V/(47)3.391V a cell you could rig a relay to shut of the charger when it switches to float stage.
Later floyd