Should i balance lifepo4 cells or not

[workbox]

I bought 4, 280Ah grade A LiFePO4 cells for a 12V battery pack. I put everything together, fully charged, discharged, and charged again.

The cell voltage difference during discharge stays at 0.001 all the way to the bottom.

Should I have to balance the cells?

 

[Supervstech]

When you charged them, did you get all cells up to 3.65V

 

[workbox]

When you charged them, did you get all cells up to 3.65V

No. Do you think after balancing all cells would get to 3.65v and if yes for how long?

 

[sunshine_eggo]

I bought 4, 280Ah grade A LiFePO4 cells for a 12V battery pack. I put everything together, fully charged, discharged, and charged again.

With BMS?
Charge to what voltage?
Did you pull full capacity?

The cell voltage difference during discharge stays at 0.001 all the way to the bottom.

Even imbalanced cells will show this behavior. The voltage curve is so flat, there is little deviation with noteworthy differences in SoC. Voltage only represents "balance" when above 3.40V. "Runner" behavior can be evident with SoC deviations as small as 0.1%.

Should I have to balance the cells?

If you can charge/discharge as needed without BMS triggering protection, nope.