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Peter289 Author

Level 1

6 points

MacBook Pro (M1 16") battery still drains to 80% when plugged into wall power.

My MacBook Pro is normally plugged into mains. The battery starts out fully charged but drops to 80% even if connected to wall power. Also the MagSafe cable LED is consistently orange rather than green even when the battery seems to be at 100%.

I'm running Monterey 12.2

Hardware, software or normal behavior? This becomes an issue when I want to take it off wall power to work on battery only.

Peter

MacBook Pro 16″, macOS 12.2

Posted on Feb 6, 2022 9:04 AM

Top-ranking reply

Old Toad

Level 10

210,301 points

Posted on Feb 6, 2022 9:14 AM

You must have "Optimize Battery Charging" enabled as that is part of that feature. Keeping batteries charged to just 80% will maximize the battery life.

See this Apple document: Optimize your battery life

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MacBook Pro (M1 16") battery still drains to 80% when plugged into wall power.

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