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ThinkPad A22m battery recondioning after battery rebuild

R30/R40, A30/A31, G40/G50 and Z60/Z61 Series. NOT for AMD-Ryzen.
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kfzhu1229
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ThinkPad A22m battery recondioning after battery rebuild

#1 Post by kfzhu1229 » Mon Dec 11, 2023 5:57 pm

So currently I have a blink of death ThinkPad A21m and a fully working and pristine 15" A22m after replacing its original SXGA+ screen (vertical lines) with an identical one (ITSX93C). I took the dying battery from the A21m and rebuilt it with spare 6 cells from a 6 months old aftermarket Pavilion/Compaq battery pack that I harvested its BMS from (I have a 9 cell HP original pack with working cells but dead BMS).
The rebuild was successful that the battery charges and discharges normally (up to 12.5V and down to around 10.3V). I did hot swapping without disconnecting power at any time, so I didn't even need to jump start the BMS to get it to start working. But I am having issue going through the reconditioning process to get the battery meter to decrease its wear count.
Since there's no automatic reconditioning process on A2x/A3x, I followed the guides from the help page by first fully charging it to 100%, and then use the all timers off option and drain it down and then recharge. It discharges and recharges normally, but the capacity count is not increasing from the 2.7Wh, Yellow it's thinking.
The Amber LED starts flashing about 10 seconds after unplugging the charger even though the battery percentage is at 97% and then it decreases evenly down to 6% where it would stay there for about 2 hours or so before dipping further to 3%. It is worth mentioning I was trying this before I rebuilt the CMOS battery so could the date of the battery cycles make it not work?
Is there any easier way to make the capacity count go up?
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