I couldn't figure out "How" a BMS works but read this
The BMS will burn up excess current to the cells which are fully charged, allowing the remaining cells to get topped off. Eventually, this results in a perfectly top balanced pack.
So that figures! but can someone give me an idiots guide to a question regarding my G-Wiz (leads) it charges & when fully charged it runs! occasionally it equalises.
Whats the difference between charging & equalising?
If I converted to lithium do the same principles apply? as I know a BMS is an absolute must with them!