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My new Lenovo Yoga 920 battery won't charge to 100%

I recently purchased a new replacement battery for my Yoga 920 (from ifixit) and installed it.


I’ve left it charging for over 12 hours at it reaches at most 74% and never higher. When I discharge it, it shuts down in a bit less than 3 hours. I’ve done so far 3 full charge / discharge cycles but it still never gets up to 100%. The previous battery would only last about 1.5hrs, but it at least reported charging up to 100%.

BatteryInfoView and BatteryMon both report the new battery is not reaching its design capacity (in fact only about 50% of it). Is this a faulty battery? or is there an extra step necessary to get it to fully charge.

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Just to clarify as well, the "Conservation mode" is off, so this isn't the issue.

da

Was the computer shut off while you were charging it?

da

No, it was switched on. I could see it slowly creeping up from 0% to 74%. After the 3rd try, it went to 100% but in BatteryInfoView I see that it's just based on what it considers now to be the "max charge capacity", which is around 42000mA instead of over 70000mA.

da

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Hi @ptursan

Contact ifixit about the problem as you may have got a faulty battery

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Paul T sarà eternamente grato.
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