If your iPhone issue is covered by warranty, AppleCare+, or consumer law, we'll replace your battery at no charge. Not sure if you're covered? Check if you have .
Need more power? Apple authorized service providers can replace your iPhone battery.
Step 1 Pentalobe Screws. Before disassembling your iPhone, discharge the battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured. Power off your iPhone before beginning disassembly. Remove the two 3.6 mm-long Pentalobe screws next to the Lightning connector.
If you've got an old iPhone, you should probably take advantage of Apple's discounted $29 battery replacement before it ends on Dec. 31. Here's how.