Troubleshooting and Fixing MacBook Battery Issues

Dealing with a MacBook battery problem can be frustrating, especially if you rely on your laptop for work or school. Fortunately, there are several solutions that can help you resolve battery issues and get your MacBook running smoothly again.

I will share my personal experience and provide valuable tips on how to fix MacBook battery problems. Whether you’re dealing with a battery that drains quickly, MacBook battery not charging, or other issues, this guide will help you get to the root of the problem and find a solution.

Identifying the Problem

The first step in fixing a MacBook battery problem is identifying the specific issue. Here are some common symptoms:

  • Battery drains quickly: This can happen due to software issues, background processes, or battery health.
  • MacBook won’t charge: This could be caused by a faulty charger, charging port, or battery.
  • Battery percentage stuck: This might be a software glitch or a hardware issue.
  • MacBook shuts down unexpectedly: This could indicate a deeper issue with the battery or power management system.
  • Battery not recognized: Sometimes, the system may not detect the battery, indicating a potential connection or hardware fault.

Checking Battery Health

To check your MacBook battery health:

  1. Select the Apple icon located at the upper-left corner of your screen.
  2. Select About This Mac.
  3. Click System Report.
  4. Under Hardware, select Power.

Here, you will find detailed information about your battery’s condition. If it shows Normal, your battery is in good health. If it shows Service Battery, Replace Soon, or Replace Now, you might need to consider a MacBook battery replacement. Additionally, check the Cycle Count; a high number indicates your battery is nearing the end of its lifespan.

Resetting the SMC

Resetting the SMC

The System Management Controller (SMC) can be responsible for power-related issues. Resetting the SMC can often resolve battery problems. Here’s how:

For MacBooks with a non-removable battery (2018 models and later):

  • Shut down your MacBook.
  • Press and hold the Shift + Control + Option keys and the power button simultaneously for 10 seconds.
  • Release all keys and the power button.
  • Turn on your MacBook.

For MacBooks with a removable battery:

  • Shut down your MacBook.
  • Remove the battery.
  • Press and hold the power button for 5 seconds.
  • Reinstall the battery and turn on your MacBook.

Resetting the SMC MacBook can help resolve issues related to battery charging, battery status indicator, and overall power management.

Calibrating the Battery

Calibrating your MacBook battery can help improve its accuracy and performance. Follow these steps:

  1. Charge your MacBook to 100% and keep it plugged in for at least 2 more hours.
  2. Disconnect the charger and use your MacBook until it shuts down due to low battery.
  3. Leave it off for at least 5 hours.
  4. Charge it back to 100% without interruption.

Calibrating the MacBook battery helps in recalibrating the battery’s power management system, ensuring it provides accurate readings and efficient performance.

Software Updates and Settings

Keeping your macOS updated can fix bugs that cause battery issues. To check for updates:

  1. Click on the Apple logo in the top-left corner.
  2. Select System Preferences.
  3. Click Software Update.

Additionally, optimizing settings can help improve battery life:

  • Reduce screen brightness: Lower the brightness to a comfortable level.
  • Turn off keyboard backlighting: If you don’t need it, turning off the backlight can save power.
  • Disable unnecessary apps and processes: Close apps you aren’t using and manage background processes.

By keeping your Mac up to date and tweaking settings, you can significantly extend your battery life.

Using Activity Monitor

Activity Monitor can help identify apps or processes consuming too much power:

  1. Open Activity Monitor from the Utilities folder.
  2. Click the Energy tab.
  3. Check the Energy Impact column to see which apps use the most energy.

If you find any apps consuming excessive power, consider closing or uninstalling them. This can help prevent unnecessary battery drain and improve overall performance.

Hardware Inspection

If software solutions don’t work, inspect the hardware:

  • Check the charger and cable: Ensure your charger and cable are in good condition. Try using a different charger to see if the problem persists.
  • Inspect the charging port: Make sure there is no debris or damage in the charging port.
  • Check for physical damage: Look for any signs of damage on the battery or other internal components.

A thorough hardware inspection can help identify any physical issues that might be affecting your battery performance.

Replacing the Battery

If your MacBook battery health is poor and none of the above solutions work, it might be time for a MacBook battery replacement. You can either:

  • Visit an Apple Store: Schedule an appointment at the Genius Bar for a professional battery replacement.
  • DIY replacement: If you are comfortable with tech repairs, you can purchase a replacement battery and follow a guide to replace it yourself.

MacBook battery replacement can give your MacBook a new lease on life, ensuring it performs optimally for years to come.


Fixing a MacBook battery problem can range from simple software tweaks to hardware replacements. By following the steps outlined, you can identify the issue and take appropriate actions to resolve it. Regular maintenance and monitoring can also help extend your battery’s lifespan and keep your MacBook running efficiently.

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