question

@Inam Your post has no details, and your graphs have no reference. A pointless, empty, nonsense post.

If you want to learn about Li batteries and cell balancing, you could spend a couple of hours looking at Victron's Lithium Smart Battery Manual.

Starting Here would be a good starting point. But read the appropriate sections.

hi, no one can answer your question due to lack of information. what we can see that you charge one hour, followed by discharging for one hour and so on.

this says nothing about balancing. if done right you use an active balancer above 3.45V cell voltage for a sufficient long period before discharging again.

so two things:

- above 3.45V. we cannot identify if this happens from your screenshot

- for a sufficient amount of time. this depends on your battery:

-- type and performance of the internal balancer

-- contact and wiring resistences between the cells

-- resistences within the cells

-- how far have the cells drifted off from eachother

-- …

none of these things we can identify from your informations

what you can do:

charge your battery to 3.45V per cell

have a look to the BMS data

if cell diff voltage is 100mV or bigger your balance strategy is very poor

if lower than 30mV it is excellent