Replaced battery now I cannot log in

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MacBook Pro 15" 配备 Retina 显示屏 2015 年中版

2.2 GHz (Turbo Boost 最高可达 3.4GHz), 2.5 GHz (Turbo Boost 最高可达 3.7GHz), 或者 2.8 GHz (Turbo Boost 最高可达 4.0GHz) 四核 Intel Core i7 处理器，配备 6MB 共享三级缓存。

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Nicholas Bates @nicholasba76182

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发帖于: 2019年4月5日

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Replaced battery now I cannot log in

SO, I replaced a bulging battery yesterday with an Ifixit replacement. It worked great after the replacement, ran the battery all the way down to help condition it and calibrate. After the macbook shut down I put it on the charger and it sat amber for about 4-5 hours. Something seemed off, so I booted it up to look at it and there is a triangle with an exclamation point in the battery. So I reset the SMC, no luck, next I reset the NVRAM, no luck. Ran a diag, says battery needs serviced, the weird thing is I cannot login at all, it gets about 20-25% of the way through the login screen then it reboots and I’m back to square one. I have tried to restart and do ye ol’ cmd+r, nothing, just boot loops. Tried safe boot, no luck. Anyone have any ideas, my guess is a $@$* battery, just weird how it worked fine on the battery after install but when it powered down it seemed to $@$* the bed.

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arbaman @arbaman

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发帖于: 2019年4月6日

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Batteries are a painful topic, if you do a search on the forum questions you’ll see there’s someone having troubles every day, especially with aftermarket batteries. Your Mac runs off charger only too, thus you have an easy testing tool available, just unplug the battery from the board and see what happens. If it’s a battery issue the Mac will boot on its own and allow normal operations as soon as you connect the magsafe charger, in which case just ask for a battery replacement. If the issue is still there..well, let’s hope it’s not there to start with ;)

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I have the same issue, unfortunately this solution didn´t help.

The loading bar after trying to login was constantly getting up to 1/20 before restarting - then I reseted NVRAM and now it goes to 1/5 and then restarts :D.. It´s the same when the battery is unplugged.

I followed this tutorial - MacBook Pro（15英寸，带有Retina显示屏，2015年中旬）电池更换 - do you know where the issue might lie? Is it most likely caused by permanent damage to something or do you think there is still a chance of making it work again?

Thank you very much,

Jan

由 Jan Kršňák 完成的 2021年12月9日

@Jan Kršňák A number of issues may give the same outcome, thus it's hard to diagnose something like what you're experiencing..it may be software with a corrupted system, a faulty SSD or even a logic board problem. Try these hints to start with, so as to to try narrow down the issue: https://support.apple.com/guide/mac-help...

Since this was a battery related question that was already closed, please do create a new one in case you need further help :)

由 arbaman 完成的 2021年12月9日

@arbaman great, thank you very much for your help, I will check it out

由 Jan Kršňák 完成的 2021年12月9日

@Jan Kršňák - If you can get your system running install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see 在已经存在的问题里加入图片 that way we can see what's happening with your battery and charger logic if it's not a software issue.

由 Dan 完成的 2021年12月9日

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I have the same issue, unfortunately this solution didn´t help.

The loading bar after trying to login was constantly getting up to 1/20 before restarting - then I reseted NVRAM and now it goes to 1/5 and then restarts :D.. It´s the same when the battery is unplugged.

I followed this tutorial - MacBook Pro（15英寸，带有Retina显示屏，2015年中旬）电池更换 - do you know where the issue might lie? Is it most likely caused by permanent damage to something or do you think there is still a chance of making it work again?

Thank you very much,

Jan — Jan Kršňák
@Jan Kršňák A number of issues may give the same outcome, thus it's hard to diagnose something like what you're experiencing..it may be software with a corrupted system, a faulty SSD or even a logic board problem. Try these hints to start with, so as to to try narrow down the issue: https://support.apple.com/guide/mac-help...

Since this was a battery related question that was already closed, please do create a new one in case you need further help :) — arbaman
@arbaman great, thank you very much for your help, I will check it out — Jan Kršňák
@Jan Kršňák - If you can get your system running install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see 在已经存在的问题里加入图片 that way we can see what's happening with your battery and charger logic if it's not a software issue. — Dan

MacBook Pro 15" 配备 Retina 显示屏 2015 年中版

Replaced battery now I cannot log in

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