My battery is dead. .
Computer keeps trying to reboot but only stays on for 3 seconds and shuts down. Is this fixable?
MacBook Pro 15″, macOS 10.14
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Hi yinster,
Are you sure it is the battery ?
Did you try the "Related Article" at the top of this page ?
You might want to plug your adapter in to see if that helps.
If the adapter isn't charging your Mac, have a look at this discussion that solved the problem"
https://discussions.apple.com/thread/252354644
If you want to try something else, Apple has a lot of support pages:
If your Mac doesn't start up all the way
https://support.apple.com/en-au/HT204156
You may be able to start up in safe mode:
How to use Safe Mode on your Mac:
https://support.apple.com/en-au/HT201262
Start up your Mac in safe mode:
https://support.apple.com/en-au/guide/mac-help/mh21245/mac
Use Apple Diagnostics to test your Mac
https://support.apple.com/en-au/HT202731
Hope something here works to help you.
All the best