Also fuse is ok
Did you try to clear PF already?
Go to reset tab choose BQ9000 and press Clear Errors
Post screenshot from log to verify.
Yes I did, again I do that but results are same
On the first screenshot cells had 39mv imballance.
On second screenshot cells already have 88mv imballance they are self discharging and must be replaced. Battery will never work normally like this and right now it makes no sense to unlock it since it will be relocked by the chip after a few cycles, maybe even on the first cycle.
Actually before sending screenshot, I did charge the cells externally. Now cells are in rest stage, you knows better after disconnecting external power source cells balance their power after losing some voltages to normal stage. If I have wrong thought guide me accordingly
Yes, after disconnecting external power supply cells voltages tend to drop but NOT to balance. So each cell should lose same amount of charge and voltage difference across the cells should be approximately the same in turn. But in your case some cells tend to lose more charge then the others. It is a sign of abnormal selfdischarge rate.
Let the battery in relaxed state overnight and then paste updated BatInfo page picture to evaluate imbalance.
By the way, what were initial cells voltages when you received this battery ?..
On the first screenshot cells had 39mv imballance.
On second screenshot cells already have 88mv imballance they are self discharging and must be replaced. Battery will never work normally like this and right now it makes no sense to unlock it since it will be relocked by the chip after a few cycles, maybe even on the first cycle.
cycle count also increased from 10 to 105. never experienced such thing.
@djibattworkshop Somehow near 2.8v this imbalance present earlier and I charge them on same rate (charge in series), the imbalance remain present. I was waiting that after unlocking, I will charge the battety with batt BMS so that it will balance them itself ater reaching 100%
@bnbplus about cycle count its scary for me I have received battery from customer when I detect with nlba its acts like real one bq30z55 chip unseal done successful but clearing error and updating parameters give error, after physical examination of chip it was Chinese one.
Before opening the Lenovo battery I was only checking that is that real bq9000 by removing last digit of cycle count 105 to 10, first screenshot was uploaded before reversal of real cycle count. Hopefully you will understand
its acts like real one bq30z55 chip
Lenovo not uses bq30z55
unseal done successful
bq9000 could not be unsealed using bq30z55 plugin
after physical examination of chip it was Chinese one
Paste picture of Chinese chip
Dear it was dell battery and I was only sharing my worst experience that how Chinese chips act like, when bq9000 (Lenovo battery) not unlocked I have doubt that it could be also Chinese chip and confirm it via changing one battery parameter like cycle count before opening battery, my believe is that only original one allows to change parameters not fake one.
@djibattworkshop is there any other method to verify the chip originality before opening? Because opening is useless and time consuming for fake chips.
that how Chinese chips act like,
So this Chinese chip is detected like bq30z55 ?..
Could you please connect that battery to NLBA1 and paste BatInfo picture ?..
is there any other method to verify the chip originality
Yes, always refer Chip Name Detected over Smbus in Static area on BatInfo page.
And chip in Lenovo battery was properly detected, even firmware vendor was detected correctly.
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