Will a BMS balance cells if the pack is not fully charged?

[robocam]

If a lithium ion battery can endure a greater number of cycles if charged only to 80%, will the BMS still balance the pack if it's not charged to a certain voltage?

For example, if this pack is only charged to 80%, will its BMS balance the cells?

http://lunacycle.com/batteries/packs/triangle-52v-samsung-26f-20ah/

I'm wondering if the BMS balances only at the end of a 100% charge or if it continuously balances as the battery is being charged.

 

[eee291]

Most likely no, most of the BMS's on the market balance only when a cell has reached it's cutoff voltage, witch in turn activates a little resistor that will drain the cell down a little like and then reactivate the charging process and continue doing this untill all cells are balanced.



only a smart BMS,cell balancer or a smart charger like the imax and whaat not, can balance cells regardless of their SOC

 

[dogman dan]

If the RC chargers like the IMax b6 can balance the pack at less than full, (without charging) I never found that feature in the menus. I just found balance charge, but you can select the lilo setting, and charge and balance at 4v.

I think devices like the cell medic can though.

A typical bms for a bike pack NO, it will only balance it when full. If you want to practice a lower than full charge most of the time, you will have to either balance it manually, like discharge high cells with a light bulb, or just occasionally charge to full when you want to balance it. Little harm to cells to charge full as long as you don't store them that way a long time. So balance, then ride asap. The ride can be just around the block a few times, to burn on a few %.

 

[aroundqube]

https://endless-sphere.com/forums/viewtopic.php?f=14&t=75505