MacBook Air crashes even though it should still have battery power

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Level 1

4 points

MacBook Air crashes even though it should still have battery power

My MacBook Air (M1, 2020, Sequoia 15.4) shuts down randomly when unplugged. The battery level is irrelevant, sometimes it shuts down as if the battery is empty when it should have 60 or sometimes even 80 per cent. When I then plug the Mac in, it restarts and shows about 10 per cent battery. This problem does not occur when the Mac is connected to the power supply.

This problem is similar to the following problems from Apple Discussions:

I already tried the solutions suggested in these discussions. But as these discussions haven't yet made an EtreCheck, I've done it now. Can anyone interpret the report?

Thanks in advance :)

MacBook Air 13″

Posted on Apr 14, 2025 4:17 AM

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Answer 1

Noxmain Author

Level 1

4 points

Apr 19, 2025 2:39 AM in response to John Galt

Yes, my battery is showing its age. But it is only at 900 cycles, and Apple's battery website says it should still have 80% capacity after 1000 cycles.

The main problem is not that the battery is draining fast, but that the Mac is crashing when it should have 80% (sometimes over 90%) left. And I often get the Driver IOUserServer error message mentioned in the linked discussions! So I guess it is not (only) a battery problem...

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Answer 2

John Galt

Level 10

150,884 points

Apr 14, 2025 4:44 AM in response to Noxmain

Battery failure - Your battery is reporting that it needs to be serviced.

A Mac with a defective battery will not operate properly. Have Apple replace it: Mac Repair and Service - Apple Support

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MacBook Air crashes even though it should still have battery power