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Macbook Air (2012) the battery icon shows "Service Battery". The number of charging cycles in the system information is only 150 times. What does service battery mean on MacBook?

It usually means that the battery is running out (or use more than recommended number of cycles). Either way, you may need a new battery.



If your battery is running out of life, you won't have any problems with a battery that has no capacity. Therefore, if you are not accepting the short battery life, please replace the Mac Book battery.If you are satisfied with it,please continue to use the battery.


According to Apple, MacBook Pro or MacBook Air batteries are designed to provide up to 1000 full charge and discharge cycles of their original capacity.

After installing Mavericks, the"service battery" warning seems to be wrong or the operating system is more sensitive to potential battery problems.


The charge cycle count is a count of the number of times the battery is fully drained and charged. If you don't drain the battery before recharging, you will easily reach the limit of the cycle number designed by the MacBook. In other words, you may see Service Battery warning on macOS.

Before replacing the MacBook battery, it is recommended that you try the following troubleshooting to fix the service battery warning caused by MacBook software.


How to Remove Service Battery Warning MacBook Pro?

1. Check system report

When you receive a "Service Battery" notification, the first thing you should do is to check the system report. This will tell you the number of cycles and condition of your MacBook battery.

1. Select the Apple menu (the Apple icon in the upper left corner of the computer) and select "About This Mac".

2. Select "System Report..." and then select "Power".

3. Check the "cycle count" of the battery.



2. Reset the charging cycle

2.1 Charge the battery fully.Once charged to 100%, keep the notebook running for hours while connecting the power.

2.2 Unplug the MacBook from the power source, but let it continue to run.

2.3 Allow the MacBook to run until it is turned off due to low battery.

2.4 Place your MacBook one day without power.

2.5 Charge the MacBook again until the battery is full.

Your MacBook should now be able to measure battery status more accurately. If it works, your MacBook service battery warning disappeared.

If you still see the Service Battery message, continue with the following troubleshooting.


3. Reset the SMC

The system management controller manages battery power. If it goes wrong, it can cause service battery messages on MacBook. In this case, you can reset it.

3.1 Do this if you can remove the battery from your MacBook:

3.2 After the MacBook is turned off, press and hold the power button for 10 seconds. After that, insert the battery and you are done.


If the MacBook is built-in battery:

If you are unable to remove the battery, turn off your MacBook. Then, press Control + Shift + Option and hold the power button for 10 seconds. After 10 seconds, open your MacBook.

SMC controls computer fans,back lights and indicators, port and battery, so resetting it will force your MacBook to restore to the default settings of all this hardware.

This issue should be resolved if the hardware status causes a service battery warning.


If you have tried to calibrate the battery and reset the SMC and MacBook display the service battery warning,then you have only one option left: replace the MacBook battery.

Of course, if you don't want to pay for expensive repairs in the apple store, then replacement battery yourself is the best option.




You can find professional laptop repair component and find laptop repair guide at GEMWON BLOG.

The following is a tutorial on the replacement of the MacBook Air 13 battery. You can get a lot of inspiration about the battery replacement operation for other MacBook models.


4. How to replace the MacBook battery

1. Turn off the macbook and remove the power, flip it over and place it on a soft mat.

2. Use a screwdriver to unscrew the 10 screws on the back:

2 9mm P5 Pentalobe screws

8 2.6mm P5 Pentalobe screws

3. Insert your finger between the display and the D case and pull the D case up to remove it from the body.



4. Gently grasp the clear plastic tab attached to the battery connector and pull it toward the edge of the battery to disconnect the battery.



5. Unscrew the following five screws with a T5 Torx screwdriver:

3 6.9 mm T5 Torx screws

2 3.0 mm T5 Torx screws



6. From the edge of the battery,remove the battery from the top case.



7. Install a new battery,gently insert the clear plastic tab into the battery connector and finally screw the screws in place.


Summary:

Replacing the battery can solve the MacBook service battery warning caused by battery hardware. If you encounter MacBook service battery message, please tell us and feel free to leave your thoughts and suggestions.



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