hwy17
Anti-Solar Enthusiast
I'm trying to better grasp the passive balancing concept. I think I've got that it occurs by placing tiny resistive loads on individual cells.
I know that passive balancing is only advisable above a certain voltage level, where it can accurately reflect differences in cell SOC's.
What I'm wondering is if it can only occur in a total pack SOC charging state, i.e. while you are running up from 80% to 100% pack SOC.
Or, can you be floating at near 100% SOC, with say 14/16 cells not receiving any charge because the charge current is negated by the balance load, and only the 2/16 cells are receiving a net charge.
More simply, is passive balancing a window of opportunity during the runup or is it a continuous process that can go on indefinitely at the top of the charge until all cells are topped up?
I know that passive balancing is only advisable above a certain voltage level, where it can accurately reflect differences in cell SOC's.
What I'm wondering is if it can only occur in a total pack SOC charging state, i.e. while you are running up from 80% to 100% pack SOC.
Or, can you be floating at near 100% SOC, with say 14/16 cells not receiving any charge because the charge current is negated by the balance load, and only the 2/16 cells are receiving a net charge.
More simply, is passive balancing a window of opportunity during the runup or is it a continuous process that can go on indefinitely at the top of the charge until all cells are topped up?