You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

My MacBook's batteries drains 8-10% overnight

(2017 MacBook Air on macOS Catalina 10.15)


I've usually charged my MacBook overnight, so I usually don't have this problem, but recently, I've noticed that my MacBook's battery keeps draining overnight (in about 6-8 hrs). I've tried quitting all of my applications and then closing it, but it doesn't make much of a difference. Additionally, I've checked my battery status, which seems to be OK, and my MacBook has only gone through around 120 cycles. Is there any way I can return the battery drain to normal (I'm assuming the normal battery drain is really low)?


Thank you.

MacBook Air 13", macOS 10.15

Posted on Jan 5, 2020 11:23 AM

Reply
Question marked as Top-ranking reply

Posted on Jan 5, 2020 12:59 PM

What happens if you completely shut down the computer instead of just closing the lid and putting it to sleep? Because this is a battery related issue, you should make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple. Also, see How to find your nearest Apple Authorized Service Provider (AASP) or Distributor (AAD).


A Troubleshooting Procedure that may Fix Problems with macOS El Capitan or Later


You should try each, one at a time, then test to see if the problem is fixed before going on to the next.


    Be sure to backup your files before proceeding if possible.


  1. Shutdown the computer, wait 30 seconds, restart the computer.
  2. Disconnect all third-party peripherals.
  3. Resetting your Mac's PRAM and NVRAM
  4. Reset the System Management Controller (SMC)
  5. Reset your Startup Disk and Sound preferences, if needed, after resetting the PRAM.
  6. Test in safe mode to see if the problem persists, then restart normally.  Use safe mode to isolate issues with your Mac and Playing Safe - what does Safe mode do?
  7. Repair the disk by booting from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volume entry from the side list.  Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and return to the Utility Menu. Restart the computer from the Apple Menu.
  8. Repair permissions on the Home folderResolve issues caused by changing the permissions of items in your home folder.
  9. Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button under Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
  10. Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Install OS X then click on the Continue button.
  11. Erase and Install OS X Restart the computer. Immediately after the chime hold down the Command and R keys until the Apple logo appears. When the Utility Menu appears:


     1. Select Disk Utility from the Utility Menu and click on the Continue button.

     2. When Disk Utility loads select the drive (out-dented entry) from the Device list.

     3. Click on the Erase button in Disk Utility's toolbar. A panel will drop down.

     4. Set the Format type to APFS (for SSDs only) or Mac OS Extended (Journaled.)

     5. Click on the Apply button, then wait for the Done button to activate and click on it.

     6. Quit Disk Utility and return to the Utility Menu.

     7. Select Install OS X and click on the Continue button.


7 replies
Question marked as Top-ranking reply

Jan 5, 2020 12:59 PM in response to FLMusic

What happens if you completely shut down the computer instead of just closing the lid and putting it to sleep? Because this is a battery related issue, you should make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple. Also, see How to find your nearest Apple Authorized Service Provider (AASP) or Distributor (AAD).


A Troubleshooting Procedure that may Fix Problems with macOS El Capitan or Later


You should try each, one at a time, then test to see if the problem is fixed before going on to the next.


    Be sure to backup your files before proceeding if possible.


  1. Shutdown the computer, wait 30 seconds, restart the computer.
  2. Disconnect all third-party peripherals.
  3. Resetting your Mac's PRAM and NVRAM
  4. Reset the System Management Controller (SMC)
  5. Reset your Startup Disk and Sound preferences, if needed, after resetting the PRAM.
  6. Test in safe mode to see if the problem persists, then restart normally.  Use safe mode to isolate issues with your Mac and Playing Safe - what does Safe mode do?
  7. Repair the disk by booting from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volume entry from the side list.  Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and return to the Utility Menu. Restart the computer from the Apple Menu.
  8. Repair permissions on the Home folderResolve issues caused by changing the permissions of items in your home folder.
  9. Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button under Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
  10. Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Install OS X then click on the Continue button.
  11. Erase and Install OS X Restart the computer. Immediately after the chime hold down the Command and R keys until the Apple logo appears. When the Utility Menu appears:


     1. Select Disk Utility from the Utility Menu and click on the Continue button.

     2. When Disk Utility loads select the drive (out-dented entry) from the Device list.

     3. Click on the Erase button in Disk Utility's toolbar. A panel will drop down.

     4. Set the Format type to APFS (for SSDs only) or Mac OS Extended (Journaled.)

     5. Click on the Apply button, then wait for the Done button to activate and click on it.

     6. Quit Disk Utility and return to the Utility Menu.

     7. Select Install OS X and click on the Continue button.


Jan 5, 2020 1:15 PM in response to FLMusic

Then you must have something that is running even while the computer is put to sleep that is causing such a large drain on the battery. You may want to check what Activity Monitor is showing right before putting the computer to sleep. Also, you should first put the computer to sleep, wait until the keyboard backlight turns off, then shut the lid. Otherwise, the computer may actually not sleep. Check your Energy Saver settings to be sure you haven't enabled Power Nap or any other setting that could keep the computer running while asleep.


Use Activity Monitor to Kill Runaway Processes


     Use Activity Monitor on your Mac

     Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity.


Jan 5, 2020 2:25 PM in response to Kappy

I checked Activity Monitor beforehand and quit as many applications as possible, leaving only a 0-0.1 energy impact via Spotlight and Finder. Also, I made sure my keyboard backlight was off before closing my MacBook. However, I did have Power Nap on, which I turned off now. Though I don't know if Power Nap could actually run because my device was offline before I closed it.

My MacBook's batteries drains 8-10% overnight

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.