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Old 08-04-19, 08:43 PM   #13
NiHaoMike
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Just build a dual comparator circuit with one output to trigger around 3.15V and another around 3.45V. That will give an easy indication of low and high charge. If you want more accuracy, you'll have to use a BMS with that feature which is hard to find for one cell LiFePO4.
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