Not correct. Using BMS is vital. Balance charging does nothing. There is always human error and there are plenty of examples on endless sphere. Dont compare cheap chinese pcm’s with proper bms systems.
You dont need high balancing current. If the cells are fresh and from reliable source. E.G. nissan leaf has bms with 60ma balancing current on 65AH cell and its sufficient.
Here is a link to some proper bms:
https://www.energusps.com/shop/product/tiny-bms-s516-150a-750a-36
8 Likes