Thread: Low cost BMS
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Old 02-28-2013, 05:55 PM   #98 (permalink)
harlequin2
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Yah, they all seem to lack a basic understanding!
I re-iterate: If you balance your cells before installing them into your battery, a 1/2 A balancer is adequate to keep them that way, certainly for all the sizes commonly used by the home EV converter.
I balanced all mine with an individual cell charger made from an old 5 V/ 20 A computer power supply modified to put out 3.6 V instead of 5 V. Might take a while if you have a few hundred cells!
Also, weber and coulomb on the AEVA balanced theirs with only 1/2 A just by leaving the charger in balancing mode for a few days - they have about 220 cells.
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