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Introduction |
| iPhone batteries degrade with use—over time, they lose their ability to hold a full charge. Apple's batteries are rated to hold 80% of their capacity for up to 500 charge cycles, which lasts roughly 18-24 months for most users. When your battery's chemistry is degraded, it may also cause your iPhone to run more slowly. Use this guide to replace your battery and restore your iPhone to full performance. | | If your battery is swollen, [https://www.ifixit.com/Wiki/[What_ to_ do_ with_ a_ swollen_ battery|take appropriate precautions|new_window=true]]. | | | This guide instructs you to completely detach the display and remove the lower speaker and Taptic Engine for better access to the battery's adhesive strips. | | For optimal performance after completing the guide, calibrate your newly installed battery: Draincharge it below 10to 100% for at least two hours, then use it until it shuts off due to low battery. Then, charge it uninterrupted to 100%. |
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