Can the 18650 battery pack operate without a BMS?

I am currently building a 4S12P 18650 battery package and am wondering if I can do without BMS. I will just use it to charge, so voltage and current are always monitored through the balance charger.

Yes. An 18650 battery pack can operate without a BMS board, but it’s not recommended.

You can use a balance charger to monitor the current and voltage while charging the 18650 battery pack, but without a BMS for 18650 battery pack, there is no way to monitor the balance of the battery and input while discharging, both of which are important.

MORE: How to determine which BMS can be used in Li-ion bl-5c batteries or Li-ion batteries?


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