Why Is My MacBook Not Charging Past 80%? – Easy Fixes!
MacBook Air and Pro with Apple silicon chips are extremely power efficient. It gives more than 18 hours of battery life on a single charge. But, some MacBook users reported their device charging stuck at 80%.
So, why does your MacBook isn’t charging past 80? Apple introduced Optimised Battery Charging features in macOS Big Sur to extend the overall lifespan of lithium-ion batteries. When Optimised Battery Charging is enabled, your MacBook will read your usage and charging pattern and pause charging when the battery recharges at 80%. This will extend your battery lifespan.
Because Li-Ion batteries lose their power-holding capacity when fully charged. So, this is not a fault; it’s a feature to extend your battery health.
Yes, you heard it right!
It’s a feature that Apple introduced in macOS Big Sur. Apple says it- Optimised Battery Charging.
It is designed to extend the lifespan of your MacBook’s battery by learning your daily charging routine.
All MacBooks running on macOS Big Sur or later have Optimised Battery Charging enabled by default.
If you’re traveling somewhere, you can overwrite this from macOS battery settings. This guide will demonstrate how to force your MacBook to charge 100%.
Also Read: How To Fix MacBook Pro Not Charging
- 1 Why Is My MacBook Not Charging Past 80?
- 2 How To Force Your MacBook To Charge Fully?
- 3 How do I check the battery health on my MacBook?
- 4 When should I replace the MacBook battery?
- 5 Should I shut down my Mac every night?
- 6 Conclusion
Why Is My MacBook Not Charging Past 80?
Your MacBook battery is not charging 100% because Optimised Battery Charging is enabled. This feature is available in macOS Big Sur or later versions of macOS.
But there could be many other reasons too that stop the MacBook battery from charging fully. Other reasons could be overheating, faulty adapter, broken cable, or degraded battery health.
How To Force Your MacBook To Charge Fully?
Do you want to force your MacBook to charge 100%? You can disable Optimised Battery Charging feature from System Preferences.
Follow these steps to force your MacBook to charge fully-
1- Open Launchpad
Click on Launchpad in the Apple Doc & Menu Bar.
2- Click On System Preferences
From the apps list, click on ‘System Preferences.’
3- Click on the Battery icon
Inside the System Preferences, click on the ‘Battery‘ icon.
4- Click on Battery
You’ll see the Usage History, Battery, Power Adapter, and Schedule options in the left bar navigation when you open the battery settings. Click on the ‘Battery.’
5- Untick Optimised Battery Charging
You’ll see that Optimised Battery Charging feature is by default enabled. Just untick the option to disable it.
6- Click on Turn Off
When you untick the Optimised Battery Charging option, Apple will ask to confirm the action in a pop-up window. Just click on ‘Turn Off Until Tomorrow‘ or ‘Turn Off.
That’s it! You have successfully disabled the Optimised Battery Charging feature on macOS, and now you can charge your MacBook to 100%.
However, Apple recommends enabling this feature because charging a Li-ion battery to its full capacity drains the lifespan.
If you ever change your mind, follow the same steps System Preferences> Battery> Optimised Battery Charging and enable it.
Also Read: Why is My MacBook Charger Overheating
How do I check the battery health on my MacBook?
With time, all Li-ion batteries degrade, and so does your MacBook battery. It is essential to keep a regular check on the health of your MacBook’s battery because it’s another reason why your MacBook will face charging issues.
Follow these steps to check MacBook Battery Health–
- Open Launchpad
- Click on System Preferences.
- Click on Battery.
- Click on Battery Health.
You may need to go for battery replacement once the Battery Health drops below 70.
If your MacBook has Apple Care+, the service center will replace the battery at no cost.
Also Read: How To Charge MacBook Pro Without Charger
When should I replace the MacBook battery?
MacBook batteries are designed to function properly up to 1000 charge cycles.
It may last for approx 4 to 5 years (depending upon your usage). If you’re a heavy user, you may need battery replacement within two or three years.
Here are a few signs that indicate the MacBook battery needs replacement-
- Your MacBook is running out of power too quickly.
- The MacBook is not charging at all or charging very slowly.
- MacBook’s Battery Health has decreased below 70%.
- MacBook gets extremely hot while charging.
If you ever face these MacBook battery issues, it’s time to replace them.
Also Read: How To Fix MacBook Air That Won’t Charge
Should I shut down my Mac every night?
It’s not necessary to shut down your MacBook every night. MacBooks are designed to go into sleep mode when inactive for a particular time.
When MacBooks are in sleep mode, it uses very less power, and all your unsaved work is stored safely in the RAM.
However, shutting down a MacBook every night is beneficial because it saves battery health.
MacBook battery not charging 100% is a common problem many Mac users reported. It happens because of the Optimised Battery Charging feature in macOS. You can disable this feature if you want your MacBook to charge fully.
It’s essential to keep checking MacBook Battery Health regularly as it degrades with time. If you ever face any MacBook charging issues, feel free to contact Apple Support.