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Updated version of the 2016 Retina MacBook. Model A1534, EMC 3099. Now features faster Kaby Lake processors up to 1.4 GHz Core i7 with Turbo Boost up to 3.6 GHz and up to 50 percent faster SSD, and supports up to twice the memory.

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Replacement battery no longer working

Hi, I replaced the battery in my daughters MacBook with the kit purchased from iFixit, it was working fine until recently, it now will not charge and in system report it is showing battery cycles 0 and needing attention, any assistance with this will be appreciated.

Thanks

Chris

Update (04/24/24)

Hi Dan, I replaced the battery end of Feb 2023, I have attached a screen shot of the CoconutBattery.

Thanks

Chris

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When did you replace the battery? And if you can let’s get a snapshot of CoconutBattery main window so we can see all of the batteries data with the charger plugged in posted here so we can see things too.

Update (04/24/24)

@chrismurley - Ouch! This battery is no good. The NaN errors is due to a bad Microcontroller chip within the battery.

Due to COVID chip availability was tight as some battery makers tried salvaging chips from dead batteries. The QC to check these reused chips was let’s say… not well done.

You need a new battery, you might try getting a replacement from where you bought it if they offer a warranty.

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I know the warranty on iFixit batteries is one year, but despite that it would be worth your time to talk to the iFixit Store personnel about your situation; I agree with Dan that it looks like the BMS (Battery Management System) on your replacement battery looks pretty dead, so there may be something they can do. Best way is to email them at support@ifixit.com.

da

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Chris Murley sarà eternamente grato.
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