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Rev

Yes I see that last full capacity dropped, however I attempted calibration ten times since I noticed that, both with and without OS running to no avail. I once flushed it down to 0% even laptop was not able to turn on then charged. Still stuck at 90%.
– user529094
Commented Dec 3, 2015 at 7:06
That's normal. It is unlikely that you will reach 100% again as your battery capacity has dropped by almost 22%. You should however, refrain from performing battery calibration very frequently and try not to drain your battery down to 10% or less as I recall reading something about that being harmful to your battery life.
– Vinayak
Commented Dec 3, 2015 at 7:11
Certain Lenovo computers have software that cuts off power to the battery at 60% charge and maintains that battery level (even with the notebook powered off), which apparently increases battery life. You could do this manually but I can only imagine what an inconvenience that'd be. I am unaware of any software programs that can achieve the same effect on other computers.
– Vinayak
Commented Dec 3, 2015 at 7:17
I understand that battery itself will not return back to 2200mAh 100%. Just confused with hardware indicator - will it consider new 1700mAh capacity as 100% and how to teach it.
– user529094
Commented Dec 3, 2015 at 7:20
Batteries age over time and a 22% drop in battery capacity for one that's been used over 2 years is not surprising. It's nothing that you need to worry about though. Not until battery wear guess up to 50% or more.
– Vinayak
Commented Dec 3, 2015 at 7:21

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