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All Blue Smart charger datasheets and manuals are saying the charger is suitable for Li-Ion batteries. I don't understand: Any Li-Ion battery in 3S configuration would be 3 x 4.2V = 12.6V Maximum. Any of the Li-Ion voltages (13.2/13.5/14.2) on the charger would damage the battery. How can this be?
LifePo4 would be OK with 14.2 V max and 13.5V float charge. But that is a different chemistry
4.2V is seriously high. You would be aiming lower and have more in series. targeting somewhere from 3.4 to 3.7V.
You can add a custom charge regime for 3 series Li battery.
Yes, but those (3.4/3.7) are the max voltages for LifePo4. With Li-Ion usually 3.4V would be only ~50% charged. For a battery build of 18650 Li-ION for example: https://www.nkon.nl/sk/k/30q.pdf. As far as I know, most Li-Ion batteries have 4.2V as 100% SOC.
My point is that for Li-Ion you would need a different charger. For 4S it would need to be max 16.8 Volts and 3S would need to be max 12.6 volts. LifePo4 would be fine with this charger, but it is stated as suitable for Li-Ion....
