mac turns off when I remove the power cord

applequestioner110 Said:

"mac turns off when I remove the power cord: why my MacBook Pro turns on only when wire-connected to power? It shuts off when power cord is removed"

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Troubleshooting Power:

A. Please Clarify:

• Is it charging?
• Did you install an update?
• Have you had battery issues?
• Has this Mac been serviced recently?
• What were you working on when this happened?

B. Try a New Charger:

If it is charing from an external device, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the Right Power Adapter and Cable for your Mac Notebook - Apple Support

C. A Few Links to Refer to Power:

• If your Mac doesn't Turn On - Apple Support

• About Mac Notebook Batteries - Apple Support

• How to Turn your Mac On or Off - Apple Support

• Charge the MacBook Pro Battery - Apple Support

• If your Mac Battery won't Charge - Apple Support

applequestioner110 Said:

"mac turns off when I remove the power cord: One thing I noticed was: the battery status says "needs service... works normally but can't hold the power". Could be it need a battery replacement? Seems to have replaceable battery. Can I do it or go to some 'Mobile Kangaroo'.. ? Thanks for the help!"

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You are welcome. Thank you for the followup..

Reson fo a New Device:

You are welcome. It seems to me that it may be time for a new battery. Try a different charger. And try a different port. If of no success, then, being almost a decade old-device, I see this as being a good reason to upgrade to a more-recent device.

Getting this Serviced:

Take it to you local AASP (Apple Authorized Service Provider):

1. Go Here: Find Locations - Apple Authorized Reseller
2. Click: Service & Support
3. Enter: your location information
4. See: if there is an AASP nearby
5. Contact: an AASP that shows up, and find out more about the services that they offer to fix the device

applequestioner110 Said:

"mac turns off when I remove the power cord: [...]I believe the problem occurred on an update in Sierra. Then I updated to Catalina, problem didn't go away. [...]Thx. much... I will go to an AASP for the battery By the way, Macbook Pro is also very very slow since this problem started. May be slow speed is also related to weak battery? Hope the AASP resolves it"

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Downgrading:

If it is slow, then downgrading to High-Sierra, may be the ultimate solution. All would be performed manually, if no backup exists.

Restore from a Backup:

Did you create a backup of your Mac prior to updating your Mac? if so, restore from the backup. If not, then take this as a learning experience, knowing to always backup your Mac, prior making any major change to your device, such as an update.