iphone 5c battery swelling

You should get the battery replaced as soon as possible, but the battery replacement program covers only the iPhone 5, I'm afraid, check here:

iPhone 5 Battery Replacement Program

Apple will replace the battery for $79, check here:

Service Answer Center - iPhone

this happened to my nephews iphone 5c, too. He got it replaced for free. Bring it either to an Apple Store or, if there is none at your place, to an Apple Authorised Service Provider or Apple Authorised Reseller, they will help you (find here: https://locate.apple.com/country).

I would recommend getting it in to the Apple Store or authorized dealer. My iPhone 5c battery started draining faster about 2 months ago, and in the last month started shutting off before running out of battery. In the last week it would shut off when the battery showed just below 50% charge remaining. I also had what looked like a pressure mark that suddenly appeared on the screen 2.5 weeks ago. I had an appointment at the Genius Bar today and my battery completely failed the diagnostic test. The person helping me was also very concerned about the pressure mark and said it is above the battery, so he was pretty sure the mark was from the battery and that the battery was swelling. I was told the normal fix for a failed battery would be me buying a new battery but that Apple will not replace a swollen battery in a phone. So they actually gave me a brand new phone. My phone was purchased in January 2014 so it was also out of warranty, but they were still willing to replace my phone for free.

I have the same problem. From last one month battery meter shows 70% and shuts the phone completely. As soon as I plug the charger, phone boots up and shows 50-70% battery. I have the Genius bar appointment for this Sunday. This is really annoying.

I have the same problem also phone shutdown under 50% and blue mark just little up of home button. Also my home button stopped working.

I went to the Apple Store today and I explained them the problem (battery drain, left side of the phone popping out, display problem) I have with the iPhone 5c. They ran a quick diagnostics and the result came to be the battery failed and this is not because of the consumption but due to the battery problem. They took my phone inside to check if the battery was swollen. Genius bar person took a look at the screen and he observed that the screen display was distorted. He then said it is because of the battery swollen. He then offered to replace the phone for free as replacing the battery may damage other parts of the phone. I accepted and came out with the refactored phone.