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The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

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Battery has failed prematurely

I purchased a Macbook Air replacement battery from iFixit in July 2019 and calibrated it according to the instructions after installing it myself.

In less than a year the battery started dying when showing 95% or more charge. I wrote to iFixit to report the problem, but they made no recommendations and didn’t offer to replace it.

I’m now at the point of getting a new computer, but would still like to be able to use this one on the battery without having to get another new battery. Is there any chance that I can revive this battery? Is there any chance that iFixit might replace it under warranty at this late point?

I’m a little steamed at them because I payed twice what I could have elsewhere, believing that I’d be getting a good product. My wife ordered a battery from the cheapest place on eBay and has had no such problems with hers. Thank you.

Update (12/14/2021)

I've got Coconut battery and have looked at it. Here it is for your viewing enjoyment. Last night I left a youtube video streaming to try and drain the battery. When I restarted it this morning it was only down to 77% - I would expect it to drain to near zero.

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Ответ на этот вопрос У меня та же проблема

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Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question

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it might not be a battery problem, if you have a multimeter, try measuring the voltage of the cells when the battery is discharged and when it is charged.

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The battery it’s self looks what I would expect for an almost four year old battery.

I’m suspecting your charger and/or charging logic has the issue. Are you using the original charger that came with the system? Is the cord damaged in any way? Is both MagSafe contact surfaces clean and not damaged?

You may need to find someone local to check the charging logic comparator logic as it sets the charge rate.

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Nickolas Hein будет вечно благодарен.
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