The Delta rate(mv) is different with every charger. It's all about trials. Start with 3mv per-cell(3mv / c) and do a test run for run-time.
I have the MRC Super Brain 977 and Graupner Polaron 1400. They all can peak-charge the batteries at/with a different mv rate.
Last edited by GuyIsDamGood; 02-04-2017 at 05:16 AM.