Is there a free battery replacement for overheating issues with my iPhone?

It’s actually pretty common for batteries to heat up a bit. If your phone starts showing high temperature warnings or shuts down, Apple will do a diagnostic check and replace the battery if there's a legit issue. Just make sure it’s happening frequently enough to be considered a problem.

Don’t stress too much; usually, it’s not the battery causing the heat but rather the logic board. But if overheating is a constant issue, definitely talk to Apple support.

If your battery is under the limited warranty and it's faulty, you can get a free replacement. Also, if you're using Apple Care+ and your battery capacity drops below 80%, you might qualify for a free swap too, otherwise, there’s a service fee without Apple Care+. Just keep in mind that some battery heat is normal during charging and heavy use.