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Battery problem after updating to Big Sur on MacBook Pro 13" 2017

Hi all,

after updating to Big Sour (11.2.2) my battery doesn't work well: system says "Service reccomended" and indicate 7h for a full charge starting from 82%.


Battery cycle count is 85. Anyone has same problem? Is possible to resolve?


Thank you

MacBook Pro 13″, macOS 11.2

Posted on Mar 2, 2021 1:24 AM

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Question marked as Best reply

Posted on Mar 2, 2021 2:23 AM

Since the SMC Reset did not produce a positive effect and still getting Service Battery - make a Time Machine Backu asap and have Apple Authorized Repair Dealer or Apple Store evaluate the battery

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3 replies

Mar 2, 2021 1:55 AM in response to Luis Sequeira1

Hi, thank you for your reply. I tried to resetting SMC but nothing happen, system still reccomended service... these are battery info taken from system information, if they can be useful.


Battery Information:


 Model Information:

 Manufacturer: DSY

 Device Name: bq20z451

 Pack Lot Code: 0

 PCB Lot Code: 0

 Firmware Version: 901

 Hardware Revision: 1

 Cell Revision: 3666

 Charge Information:

 Fully Charged: No

 Charging: Yes

 Full Charge Capacity (mAh): 3474

 State of Charge (%): 100

 Health Information:

 Cycle Count: 89

 Condition: Service Recommended


Battery problem after updating to Big Sur on MacBook Pro 13" 2017

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