4 Simple Li-Ion Battery Charger Circuits - Using LM317 ...
2021-2-14u2002·u2002Stage#3: As the current drops, it reaches its lowest level which is lower than 3% of the cell's Ah rating.. Once this happens, the input supply is switched OFF and the cell is allowed to settle down for another 1 hour. After one hour the cell voltage indicates the real State-Of-Charge or the SoC of the cell. The SoC of a cell or battery is the optimal charge level which it has …
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