Oh nice, it seems the Clara 2E has all the statistics, too.
It looks like v_max is the same (4.2 V), but v_min is not (3.6 instead of 3.5 V). You should change the v_pct divisor from 7000 to 6000.
I do wonder if the Libra 2 reports v_min incorrectly. I've noticed that the charge drops off rapidly below 3.6 V, so perhaps 3.52 V is not the real minimum.