How to fix!! – Mac book Air (2011) battery is not recognized

Hi people, see me again. Today friend of my ask me to help her about MacBook air problem.

Hers two months old MacBook Air’s battery is not recognized and when battery charger is plugged in the charging light status is not on.

I first think that the MacBook Air has a problem and asked her to bring it to Apple store. However, after my investigation. found that its battery was flatted and completely drained out. This is the problem for Mac computer, if the battery is completely drained, it some time shows that the battery is not recognized.  Apple has a solution to fix this issue for MacBook Air and other Mac products.


Problem: The problem is battery is not recognized.

Solution:to fix this user have to reset SMC by following step.

Resetting the SMC on portables with a battery you should not remove on your own

Note: Portable computers that have a battery you should not remove on your owninclude MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).

  1. Shut down the computer.
  2. Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
  3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
  4. Release all the keys and the power button at the same time.
  5. Press the power button to turn on the computer.Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.

Your computer will be back to normal again.

Instructions are different for other Mac model please check from this link to see how to reset Mac’s SMC

Resetting the SMC on Mac portables with a battery you can remove

Note: Learn about removing the battery on MacBook and MacBook Pro.

  1. Shut down the computer.
  2. Disconnect the MagSafe power adapter from the computer, if it’s connected.
  3. Remove the battery.
  4. Press and hold the power button for 5 seconds.
  5. Release the power button.
  6. Reconnect the battery and MagSafe power adapter.
  7. Press the power button to turn on the computer.

Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve

  1. Shut down the computer.
  2. Unplug the computer’s power cord.
  3. Wait fifteen seconds.
  4. Attach the computer’s power cord.
  5. Wait five seconds, then press the power button to turn on the computer.

Note: For Intel-based Xserve computers that are not responding, you can shut down locally, or by using remote commands, or by pressing and holding the power button for five seconds.

“Hope your Mac will back to normal again”

Following issues may be related.

* Issues with your Mac’s cooling fans and fan management: fans run constantly at high speed, fans run high despite low CPU usage and adequate ventilation, fans not working at all, etc

* Power management and battery problems: Mac isn’t turning on, sleep isn’t working, random shutdowns and reboots, battery isn’t charging, Mac won’t wake from sleep etc

* Light problems and improper lighting management: battery indicator lights aren’t working, display backlighting isn’t adjusting to ambient light changes, keyboard backlights not working, etc

* Video and external displays not working: display brightness functionality not working properly, target video mode isn’t working properly, external display isn’t working, etc

* General performance and functionality problems: abnormally sluggish behavior despite no CPU or disk usage, external ports not working, airport & bluetooth aren’t showing up, external devices are not being found, etc

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