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Intro History: iPhone 4S Battery Replacement

Edit by Jeff Suovanen

Edit approved by Jeff Suovanen

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Introduction
Replacing the battery on the iPhone 4S requires minimal disassembly. If your battery is swollen, [https://www.ifixit.com/Wiki/What_to_do_with_a_swollen_battery|take appropriate precautions|new_window=true].
For optimal performance, calibrate your newly installed battery: Drain battery below 10%, then charge uninterrupted to 100%.
[video|https://www.youtube.com/watch?v=i196dj1cZls]