Macbook Pro automatically shuts down in Calibration Mode #257

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adam · 2025-12-30T02:19:59+01:00

adam commented

2025-12-30 02:19:59 +01:00

Originally created by @FaeAuditore on GitHub (Sep 23, 2021).

There is something wrong with the battery health of my MacBook Pro (15-inch, 2016, Big Sur 11.5.2) . Sometimes even if the value on battery is around 25%, Mac will automatically shuts down. Then I tried the Calibration Mode in AlDente Pro, my Mac still shuts down in the process of discharging. It seems that the Calibration Mode cannot complete on my Mac. Is there any solution? Thanks.

Originally created by @FaeAuditore on GitHub (Sep 23, 2021). There is something wrong with the battery health of my MacBook Pro (15-inch, 2016, Big Sur 11.5.2) . Sometimes even if the value on battery is around 25%, Mac will automatically shuts down. Then I tried the Calibration Mode in AlDente Pro, my Mac still shuts down in the process of discharging. It seems that the Calibration Mode cannot complete on my Mac. Is there any solution? Thanks.

adam closed this issue

2025-12-30 02:19:59 +01:00

adam commented

2025-12-30 02:20:00 +01:00

@MatthiasKerbl commented on GitHub (Sep 25, 2021):

Hi @FaeAuditore,

it sounds like your battery calibration is disturbed.
Try to manually discharge and charge your battery multiple times until you can discharge your MacBook to 0% again.

Cheers,
Matthias

@MatthiasKerbl commented on GitHub (Sep 25, 2021): Hi @FaeAuditore, it sounds like your battery calibration is disturbed. Try to manually discharge and charge your battery multiple times until you can discharge your MacBook to 0% again. Cheers, Matthias

adam commented

2025-12-30 02:20:00 +01:00

@FaeAuditore commented on GitHub (Sep 27, 2021):

Thank you very much, @MatthiasKerbl . I will have a try:)

@FaeAuditore commented on GitHub (Sep 27, 2021): Thank you very much, @MatthiasKerbl . I will have a try:)

adam commented

2025-12-30 02:20:00 +01:00

@cheack commented on GitHub (Oct 19, 2021):

Hi @MatthiasKerbl,
How many times do I need to do a discharge/charge cycle? I've already done it five or six times, but my mac still shuts down at 50%. After charging to 100%, I leave it on charge for 1-2 hours, then unplug it, but the charge shows 100% for 1-2 hours, only after that it starts to decrease.

@FaeAuditore, were you able to discharge your battery?

@cheack commented on GitHub (Oct 19, 2021): Hi @MatthiasKerbl, How many times do I need to do a discharge/charge cycle? I've already done it five or six times, but my mac still shuts down at 50%. After charging to 100%, I leave it on charge for 1-2 hours, then unplug it, but the charge shows 100% for 1-2 hours, only after that it starts to decrease. @FaeAuditore, were you able to discharge your battery?

adam commented

2025-12-30 02:20:01 +01:00

@MatthiasKerbl commented on GitHub (Oct 21, 2021):

Hi @MatthiasKerbl, How many times do I need to do a discharge/charge cycle? I've already done it five or six times, but my mac still shuts down at 50%. After charging to 100%, I leave it on charge for 1-2 hours, then unplug it, but the charge shows 100% for 1-2 hours, only after that it starts to decrease.

@FaeAuditore, were you able to discharge your battery?

Hi @cheack,

It differs from MacBook to MacBook but it if did not get better after discharging and charging 10 times, the problem might not be a miscalibrated battery management system but an aged or defective battery instead.

Cheers,
Matthias

@MatthiasKerbl commented on GitHub (Oct 21, 2021): > Hi @MatthiasKerbl, How many times do I need to do a discharge/charge cycle? I've already done it five or six times, but my mac still shuts down at 50%. After charging to 100%, I leave it on charge for 1-2 hours, then unplug it, but the charge shows 100% for 1-2 hours, only after that it starts to decrease. > > @FaeAuditore, were you able to discharge your battery? Hi @cheack, It differs from MacBook to MacBook but it if did not get better after discharging and charging 10 times, the problem might not be a miscalibrated battery management system but an aged or defective battery instead. Cheers, Matthias

adam commented

2025-12-30 02:20:01 +01:00

@cheack commented on GitHub (Oct 22, 2021):

@MatthiasKerbl, I tried several more times to discharge the macbook, but without success. Then I left it on the charger for the whole day (8 hours), and only after that it started discharging immediately after taking it off the charger. Perhaps all of this happened because I hadn't calibrated my battery in almost a month.

By the way, what's the best (right) way to calibrate the battery - charge to 100, then discharge to 0 and immediately set the limit? Or discharge to 0, then back to 100, then back to 0 and only then set the limit?
Thanks.

@cheack commented on GitHub (Oct 22, 2021): @MatthiasKerbl, I tried several more times to discharge the macbook, but without success. Then I left it on the charger for the whole day (8 hours), and only after that it started discharging immediately after taking it off the charger. Perhaps all of this happened because I hadn't calibrated my battery in almost a month. By the way, what's the best (right) way to calibrate the battery - charge to 100, then discharge to 0 and immediately set the limit? Or discharge to 0, then back to 100, then back to 0 and only then set the limit? Thanks.

adam commented

2025-12-30 02:20:01 +01:00

@MatthiasKerbl commented on GitHub (Oct 22, 2021):

@MatthiasKerbl, I tried several more times to discharge the macbook, but without success. Then I left it on the charger for the whole day (8 hours), and only after that it started discharging immediately after taking it off the charger. Perhaps all of this happened because I hadn't calibrated my battery in almost a month.

By the way, what's the best (right) way to calibrate the battery - charge to 100, then discharge to 0 and immediately set the limit? Or discharge to 0, then back to 100, then back to 0 and only then set the limit? Thanks.

We are still not 100% sure what the best strategy for calibrating your MacBooks battery is. However, charging at least once from 0-100%, staying at 100% for a couple of hours, and discharging at least once from 100-0% should work for most people and should be done every two weeks or so, depending on your usage.
Our paid version AlDente Pro has a feature called "Calibration Mode" built in to do the calibration automatically.

Cheers,
Matthias

@MatthiasKerbl commented on GitHub (Oct 22, 2021): > @MatthiasKerbl, I tried several more times to discharge the macbook, but without success. Then I left it on the charger for the whole day (8 hours), and only after that it started discharging immediately after taking it off the charger. Perhaps all of this happened because I hadn't calibrated my battery in almost a month. > > By the way, what's the best (right) way to calibrate the battery - charge to 100, then discharge to 0 and immediately set the limit? Or discharge to 0, then back to 100, then back to 0 and only then set the limit? Thanks. We are still not 100% sure what the best strategy for calibrating your MacBooks battery is. However, charging at least once from 0-100%, staying at 100% for a couple of hours, and discharging at least once from 100-0% should work for most people and should be done every two weeks or so, depending on your usage. Our paid version AlDente Pro has a feature called "Calibration Mode" built in to do the calibration automatically. Cheers, Matthias

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Reference: starred/AlDente-Battery_Care_and_Monitoring#257