Macbook Pro Battery change?

Check your cycle count. About this Mac → System Report → Power - Health Information: Cycle count. If count is low Apple may help you out even if out of warranty. Generally, you want to let your battery run down at least once per month and as long as you do that, leaving it plugged in the rest of the time won't hurt it. If you have a non retina Macbook Pro a replacement battery complete with tools and instructions can be purchase from a third party for $99. Apple will probably charge $149 or so. It is a very easy install. If your cycle count is low, I would take it to an Apple Store Genius Bar first and see what they will do for you.

Yes. You have to take the computer to the Apple store to have the battery replaced.

http://www.apple.com/support/macbookpro/service/battery/

Mac notebooks with built-in batteries:

• All MacBook Air computers
• All MacBook Pro computers with Retina display
• MacBook (13-inch, Late 2009 and later)
• MacBook Pro (Early 2009 and later)

http://support.apple.com/en-us/HT204054

If your Mac has a built-in battery, don’t discharge the battery completely.

That will reduce the health of the battery.

Keep the computer plugged in whenever possible.

If you keep the computer always plugged in, make sure that at least twice a month

run it on battery until battery charge level drops to about 50-40%.

For more useful info:

Section: Optimizing Battery Life

http://support.apple.com/en-us/HT204054