battery warped

This is a known problem and happens every now and then. See also:
http://www.appledefects.com/wiki/index.php?title=Swollen_Battery

Quote from that page:

The swollen and over-heating batteries are covered by a widespread Sony-manufactured battery recall that was in the news a few months ago. Here is the url for the exchange program:
https://support.apple.com/macbookpro15/batteryexchange/
If your battery is doing this, pull it and run on AC while you get an exchange. >It will keep swelling and running hotter until it is useless.

That repair extension program was only for particular MacBook Pros and has also since closed. It's probably worth bringing to the attention of Apple, regardless. I've seen several scenarios (documented here) where users took a swollen battery into an Apple Store and it had replaced... no questions asked even though the machine was well outside of any warranty coverage.

That being said, I've also seen scenarios where Apple would refuse to replace the battery.

Hi Jason,

Can you please cite those instances where individuals got a replacement battery despite being out of the warranty range? I could use them when I go into the Apple Store tomorrow.

I am one of those unfortunate individuals who got their Macbook in late 2006/early 2007 with a defective battery. I did not know that there was a recall, and am just now having severe problems. My battery is warped.

I realize this is a bit late to reply, but I brought in a 3 year old out of warrantee macbook 13-inch white 2006 battery that was swollen to the point where trackpad wouldnt work. It was replaced free of charge no questions asked.

Yeah, I've heard about the odd occasions when people have had things replaced for free when they're out of AppleCare/warranty.

I was at the apple store two weeks ago and the guy next to me brought in his computer with a warped battery. His warranty had expired 2 months earlier but they replaced the battery free of charge

The battery on my 2.5 year old 17" MacBook Pro also swelled last week and thanks to forums dedicated to this topic, I took it into my local Apple store in Vancouver, BC and they replaced it at no charge. The Genius first ran a diagnostic check on the batter and it had about 280 cycles and the final result was "red" meaning the battery was defective. Pretty sure I was outside of the warranty period. I didn't purchase the MBP at this store nor did I have AppleCare. Great customer service experience from Apple. Saved me $150.

I brought my MacBook Pro to my local Apple store in Stamford, CT. After a few minutes of inspection and discussion they handed me a new battery and I was on my way.

I brought my MacBook Pro to my local Apple store in Stamford, CT. After a few minutes of inspection and discussion they handed me a new battery and I was on my way.

A related issue may be whether or not your machine has had excessive heat

http://discussions.apple.com/thread.jspa?threadID=716829&tstart=20

Though the references earlier in the thread are accurate for many who suffer these issues.

Thankfully, my warped battery was replaced free or charge.
It's a manufacturer's defect, the buyer shouldn't have to shoulder that responsibility. Happy Apple cares 🙂