Macbook battery not charging

To reset your MacBook's battery and settings, you can try the following steps:

1. Resetting the System Management Controller (SMC): a. Shut down your MacBook. b. Press and hold the Shift + Control + Option keys on the left side of the keyboard and the power button at the same time for 10 seconds. c. Release all the keys and the power button at the same time, then press the power button again to turn on your MacBook.
2. Resetting the NVRAM (non-volatile random-access memory): a. Shut down your MacBook. b. Press the power button to turn on your MacBook, then immediately press and hold the Command + Option + P + R keys. c. Keep holding the keys until you hear the startup sound twice. d. Release the keys and let your MacBook start up normally.
3. Calibrating your MacBook battery: a. Charge your MacBook battery to 100%. b. Use your MacBook until the battery runs out of power and your MacBook shuts down. c. Leave your MacBook off and unplugged for at least 5 hours. d. Connect your MacBook to the power adapter and charge it to 100%.

These steps should help reset your MacBook's battery and settings.

MagSafe Wont Charge MacBook Its Probably Simple Fix

If it worked with the new battery and then went dead there is a good possibility that your charger is defective.

You can install a program from the app store called "Battery Health". It will tell you if there is anything wrong with your battery. You may need to replace the battery, you can buy the $100 battery that Apple sells, but I have bought batteries for both of my macbooks from this place: http://www.ebay.com/usr/masione_outlet?_trksid=p2047675.l2559

Most likely this is because you are loosing cells in your battery; the same ageing process that happens to us all. I'm guessing that in System Profiler under Battery it says 100-200 cycles or more. You cannot do anything to stop or reverse this. To prolong the life of your battery, once you unplug your power cable, keep it unplugged until (a bit after) it asks for you to put it in, and then leave it there until fully charged.

Hi Molle
To answer your last question first. It is best if possible to use the mains power when you are using your macBook and only use the battery when you cannot connect to mains.

MacBook batteries have a life span based on the number of charge cycles the battery has been through. The battery has a max of 300 cycles before it starts to loss its charge capability. SO you need to determine the health of the battery is it chargeing etc. You can do this via the apple menu and 'about this mac'

http://support.apple.com/kb/HT1519

Check the health of the battery as the battery could be faulty if it has only cycled a few times or it may have gone over the 300 and is now lossing its charge in which case you'll need to get a new one.

Hope that helps

Paul

Apple does have a battery recall/fixing procedure on certain macbooks and macbook pros.

The battery of a MacBook or MacBook Pro computer may:

• Appear to have no charge (zero percent)
• Be unable to power the computer by itself; the computer might work only when it is connected to the MagSafe power adaptor, which only shows a green LED
• Appear with a black "X" icon on the menu bar

1. Shut down, then remove and reinstall the battery. Test for the issue(s) again.
2. Connect the MagSafe power adaptor (if you haven't already) and see if the behavior continues.
3. If the issue(s) persist, download and install the Mac OS X 10.4.9 Update.
4. If the issue(s) persist, Download and install Battery Update 1.2.

If, after installing the Mac OS X 10.4.9 Update and Battery Update 1.2, a black "X" still appears in the menu bar, contact apple by calling 1-800-MY-APPLE (1-800-692-7753)