Question about Apple Customized 15" MacBook Pro Laptop Computer Notebook

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My laptop won't charge. It was working when plugged in and now it won't even do that. Will replacing the battery fix my problem?

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It sounds like your battery and your charger are not working. Changing the battery should help, but you should first check to see if you are getting voltage to the laptop. Does the green light on the magnetic end (the end that plugs into laptop) light up when plugged in? If so, your charger is working. You should be able to turn on the laptop with or without a battery (even a dead battery) with a good power supply. If you can turn it on, check to see the number of battery cycles you currently have.

Follow these steps to access information about your Mac notebook battery including the cycle count:

  1. Your first step will vary depending on which version of Mac OS X you are using:
    • OS X Snow Leopard v10.6.8 or earlier: Open Apple System Profiler by choosing "About this Mac" from the Apple menu. Then, click More Info.
    • OS X Lion v10.7 or later: Open System Information by choosing "About this Mac" from the Apple menu. Click System Report.
  2. Click Power in the Contents list (under the Hardware section as shown below).
  3. The current cycle count is listed under the Battery Information section.
My laptop won't charge. It was working when plugge - ht1519-system_profiler-cycle_count-002-en.png

Take notice of Full Charge Capacity (mAh) on your machine. It should be close to the number shown above. If it is much lower than that and/or the cycle count is above 1000, it is time to replace the battery. I hope this helps.
Mac notebooks Determining battery cycle count

Posted on May 15, 2014

  • Christi Giamanco May 15, 2014

    The green light stays on on the charger, however the lights on the computer that gradually light up when it charges do not. The first one goes on right when plugged in and then dies out. The computer won't turn on at all, even when plugged in

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