Battery life on a 2018 Macbook Pro

I have a 2018 Macbook Pro from my place of work and I've noticed that the life while on battery is pretty poor.


This is the device MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports) 2.3Ghz i5 running Big Sur 11.4


When I check the power settings in the sys info this is what I have


Model Information:

 Manufacturer: SWD

 Device Name: bq20z451

 Pack Lot Code: 0

 PCB Lot Code: 0

 Firmware Version: 901

 Hardware Revision: 2

 Cell Revision: 1853

 Charge Information:

 Fully Charged: No

 Charging: No

 Full Charge Capacity (mAh): 4276

 State of Charge (%): 82

 Health Information:

 Cycle Count: 78

 Condition: Normal


The cycle count sounds pretty low from what I've read but the full charge capacity seems really low.


Is this normal or is there something wrong with the battery that needs looking at?

Posted on Aug 3, 2021 5:12 AM

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2 replies

Aug 3, 2021 6:35 AM in response to christof21

As long as condition is stated as "Normal", I wouldn't worry

about it



macOS manages battery health now.


How battery health management helps

The battery health management feature in macOS 10.15.5 

is designed to improve your battery's lifespan by reducing the rate at which it chemically ages.

The feature does this by monitoring your battery's temperature history and its charging patterns.

Based on the measurements that it collects, battery health management may reduce

 your battery's maximum charge when in this mode.

 This happens as needed to ensure that your battery charges to a level that's optimized for your usage

—reducing wear on the battery, and slowing its chemical aging.


 Battery health management also uses the measurements to calculate when your battery needs service.


https://support.apple.com/en-us/HT211094?cid=mc-ols-energy_saver-article_ht211094-macos_ui-04022020

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Battery life on a 2018 Macbook Pro

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