Optimized Battery Charging on a Mac: what it does and when to turn it off
How Optimized Battery Charging decides when to stop at 80 percent, where to turn it on or off on a Mac, and why it sometimes seems not to work.
What does Optimized Battery Charging do on a Mac?
It delays charging past 80 percent when your routine shows the Mac will stay plugged in for a while, then completes the charge before you usually unplug. Less time at full charge means slower battery wear.
How do I turn Optimized Battery Charging on or off?
System Settings, Battery, click the info button beside Battery Health, and switch Optimized Battery Charging. To skip it once, use Charge to Full Now in the battery menu instead.
Why is Optimized Battery Charging not working?
It needs a pattern to learn. With an irregular schedule, frequent travel or Location Services off for system services, it may never hold at 80 percent. That is the feature waiting for a routine, not a fault.
If the Mac seems stuck at 80 percent, see why a MacBook stops charging at 80%.
Common questions
Should I use Optimized Battery Charging on my MacBook?
Yes, if the Mac spends long hours plugged in. It slows battery wear and you can still charge to full when needed.
Why does my Mac charge to 100% even with optimized charging on?
It has not learned a routine yet, or your schedule changes too much. It holds at 80 percent only when it expects you to stay plugged in.