won't charge; is it cord or battery

Hi nadrick,

Thanks for visiting Apple Support Communities.

These troubleshooting tips can help with isolating the issue you're encountering:

Built-In Diagnostic Tools

A great place to start when troubleshooting battery issues is the built-in diagnostics that are available on your Mac notebook. Review the following articles for more information on using diagnostics.

• Using Apple Diagnostics
• Using Apple Hardware Test

Note: The additional troubleshooting recommended below assumes you have run the above diagnostic appropriate for your computer and that no issues were found.

My battery is not charging

Confirm the correct wattage AC adapter for the computer. A power adapter rated for a lower wattage than is required for the system may not reliably charge the computer. For assistance identifying the proper adapter, review Intel Based Mac notebooks: Identifying the right power adapter and power cord--US. Additional adapter troubleshooting is available in Troubleshooting MagSafe adapters. If issues persist please reset the SMC.

You can find these steps and more information at this link:

Mac notebooks: All about batteries

http://support.apple.com/kb/ht1446

Best Regards,

Jeremy

Go to the Apple in the upper left corner and select About This Mac, then click on More Info(and then System Report if you are running 10.7 Lion, 10.8 Mountain Lion or 10.9 Mavericks), then select Power from the left hand column of the System Profiler. Copy and paste the Battery Information from the top of the page back here