2 Replies Latest reply: Jan 3, 2013 7:33 AM by John Galt
mali328 Level 1 Level 1 (0 points)

For awhile now, my laptop will sometimes charge and sometimes not. How do I know if it needs a new battery or a new charger? I checked the battery health under about this Mac and it says is normal. Does that mean it should still be good for awhile? When I plug it in, the light on the charger won't come on anymore. A few days ago it wouldn't come on but I'd move it to a different outlet nd it would come on after a while, but now nothing. I really can't afford a whole new computer so I really need to find out what I need to replace.

Thanks!


Macbook
  • 1. Re: Charger light not coming on
    laundry bleach Level 5 Level 5 (6,880 points)

    Best way to find out is to try with different parts. If you know someone with a working MacBook charger (one from a MacBook Air or MacBook Pro would work as well) ask them to let you try it. If it works consistently, the issue is probably with your charger. You can try the same thing with a second battery.

     

    They can do this for you at an Apple retail store, if you are near one. Be sure to make a reservation before going in or you may spend a long time waiting to talk to a Mac Genius.

     

    Best of luck.

  • 2. Re: Charger light not coming on
    John Galt Level 8 Level 8 (36,315 points)

    Read the following before scheduling a service visit:

     

    Troubleshooting MagSafe adapters

     

    http://support.apple.com/kb/TS1713

     

    Pay attention to the pictures regarding cleaning and the possibility of stuck pins.

     

    SMC reset

     

    Power or other problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset:

     

    Before Resetting the SMC

     

    Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.

     

    1. Press Command + Option + Escape to force quit any application that is not responding.
    2. Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
    3. Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
    4. Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.

     

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

     

    1. Shut down the computer.
    2. Disconnect the MagSafe power adapter from the computer, if it's connected.
    3. Remove the battery (to remove the battery - click here: MacBook or MacBook Pro).
    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.


    Still having problems? Replace steps 6 and 7 with the following:


      6.  Reconnect MagSafe power adapter.

      7.  Press the power button to turn on the computer,

      8.  Then reconnect the battery.


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

     

    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.

     

    Finally,

     

    Genius Bar Reservations: http://www.apple.com/retail/geniusbar/