Thread: Low cost BMS
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Old 02-28-2013, 05:34 PM   #96 (permalink)
harlequin2
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I'm sure they do that, but its not right to claim a balance current of 1.5 A, is it?
Also, I found that when balancing is turned on, there is a significant voltage drop along the connecting traces/wires and this affects the cell voltage reading unless you take care to separate the tracks carrying that current from the voltage sensing path. Their connecting wire to the +ve terminal shares both and will result in erroneous readings - unless they only measure the cell voltage while the pwm is in the off state.
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