i have some new cells leftover from my e-moped battery n used ones. (32700 lfp)
i want to build a pack using IR and Capacity. (will be used in solar powerwall at shed n 8s park for portable powerpack)
i fully charged cells n waited 6 months then voltage check.
and made a excel sheet then distribute them using excel based repakr. (i made one before 24s5p)

i highlighted ones below 3v n [some cells will go to ewaste w no voltage]
the ones with 7~ IR will go to 16s; 21~will go to 8s pack.

------G series G001-G126 13yellow H01-50 3yellow 126-13+50-3=160 cells 16s10p pack
------H51-124 1yellow so 73 cells >can be 8s9p pack

a-Is there anything else should i consider?
b-or i should use all cells except ones without voltage? (i ll use active balancer BMS w 600mA balance current)

Thanks for help.

2025-08-10 lfp Cell IR Capacity.xlsx

1 hour ago, occuplus said:

i have some new cells leftover from my e-moped battery n used ones. (32700 lfp)
i want to build a pack using IR and Capacity. (will be used in solar powerwall at shed n 8s park for portable powerpack)
i fully charged cells n waited 6 months then voltage check.
and made a excel sheet then distribute them using excel based repakr. (i made one before 24s5p)

i highlighted ones below 3v n [some cells will go to ewaste w no voltage]
the ones with 7~ IR will go to 16s; 21~will go to 8s pack.

------G series G001-G126 13yellow H01-50 3yellow 126-13+50-3=160 cells 16s10p pack
------H51-124 1yellow so 73 cells >can be 8s9p pack

a-Is there anything else should i consider?
b-or i should use all cells except ones without voltage? (i ll use active balancer BMS w 600mA balance current)

Thanks for help.

2025-08-10 lfp Cell IR Capacity.xlsx

I have no experience with these cells but personally I would want to use the good cells. Those that self discharged to lower than 3.1V I would dump as they would discharge the good cells all the time during balancing.

Just my 2c.