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This guide shows how to remove and replace the battery in your iPhone 16 Pro Max.
iPhone batteries are rated to hold 80% of their capacity for up to 500 charge cycles, or roughly 18–24 months. If your iPhone needs to be charged more often or runs slower, it might be time to replace the battery.
If your battery is swollen, take appropriate precautions.
You'll need replacement battery and back glass adhesive to complete this repair.
As of iOS 18.1, battery health works with both genuine and aftermarket replacement batteries.
After your repair, run Repair Assistant to reset the battery metrics.
Neye ihtiyacın var
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Unplug any cables from your iPhone.
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Hold the power and either volume buttons, and slide to power off your iPhone.
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If your screen or back glass is badly cracked, lay overlapping strips of packing tape over the glass to protect yourself and make disassembly easier.
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Use a P2 pentalobe driver to remove the two 7.4 mm-long screws on either side of the charge port.
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Measure 3 mm from the tip and mark the opening pick with a permanent marker.
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Use a hair dryer or heat gun to heat the bottom edge of the back glass until it's hot to the touch.
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A delicate cable connecting the back glass to the iPhone, right next to the volume up button. Don't insert your pick here to avoid slicing the cable.
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Multiple spring contacts around the perimeter of the iPhone.
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Slide the opening pick along the bottom edge to slice the adhesive.
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Leave the opening pick in the bottom-left corner to prevent the adhesive from resealing.
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Use a hair dryer or heat gun to heat the left edge of the back glass until it's hot to the touch.
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Insert a second opening pick into the bottom-left corner, close to the existing pick.
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Slide your pick along the left edge to separate the adhesive and release the metal clips.
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Leave this pick inserted in the top-left corner to prevent the adhesive from resealing.
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Use a hair dryer or heat gun to heat the top edge and top-right corner of the back glass until it's hot to the touch.
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Insert a third opening pick into the top-left corner.
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Slide the opening pick along the top edge and around the top-right corner, stopping above the volume up button.
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Leave this pick inserted to prevent the adhesive from resealing.
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Use a hair dryer or heat gun to heat the right edge of the back glass until it's hot to the touch.
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Insert a fourth opening pick into the bottom-right corner.
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Slide the opening pick around the corner and up the right edge, stopping below the volume down button.
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Leave this pick inserted to prevent the adhesive from resealing.
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Swing open the back glass to the right of the iPhone to separate the remaining adhesive.
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Support the back glass with a clean, sturdy object.
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Use a tri-point Y000 driver to remove the three screws securing the battery connector cover:
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Two 1.3 mm‑long screws
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One 1.0 mm‑long screw
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Use the point of a spudger to pry up and disconnect the battery press connector.
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Use a tri-point Y000 driver to remove the four screws securing the back glass connector cover:
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Two 1.3 mm‑long screws
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Two 1.0 mm‑long screws
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Use the point of a spudger to pry up and disconnect the back glass connector.
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Use a Phillips screwdriver to remove the three screws securing the Taptic Engine cover:
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One 2.9 mm‑long screw
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One 1.3 mm‑long screw
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One 2.4 mm‑long screw
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Use the point of a spudger to pry up and disconnect the lower assembly cable from the logic board.
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Use a Phillips screwdriver to remove the 2.1 mm‑long screw securing the Taptic Engine.
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Remove the four screws securing the loudspeaker:
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One 1.7 mm‑long Phillips screw
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One 1.5 mm‑long Phillips screw
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One 4.1 mm‑long standoff screw
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One 1.3 mm‑long tri-point Y000 screw
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Use the tip of an opening pick to separate a black pull tab from the bottom of the battery.
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Use tweezers to help peel the tab away from the battery.
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Lift the bottom edge of the frame to tilt the iPhone.
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Use a pipette or a syringe to apply 2–3 drops of high concentration (>90%) isopropyl alcohol along the bottom edge of the battery, close to where each broken adhesive strip came out.
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Wait one minute for the isopropyl alcohol to flow under the battery and soften the adhesive.
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Remove any remaining adhesive from the battery recess. Wipe the frame surface with a lint-free cloth and a few drops of isopropyl alcohol.
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Angle the bottom edge of the loudspeaker towards the frame.
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Press the loudspeaker into its recess.
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Use blunt nose tweezers or your fingers to remove large pieces of adhesive from the frame perimeter.
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Use a spudger to scrape the adhesive residue off of the frame.
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If the adhesive feels stubborn, apply some heat using a hair dryer or heat gun and try again.
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If you're reusing your back glass, apply a few drops of highly-concentrated isopropyl alcohol (over 90%) to a microfiber or lint-free cloth and wipe around the perimeter to prepare the surface for new adhesive.
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Wrap a lint-free cloth or a coffee filter over the point of a spudger and apply a few drops of highly-concentrated isopropyl alcohol (over 90%) to it.
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Wipe in one direction along the perimeter of the frame to clean the adhesive residue.
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Lay the adhesive sheet over the frame to determine its proper orientation.
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Use your finger or a spudger to press and connect the battery press connector onto the logic board.
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Align the back glass connector cover by its screw holes and lay it in place.
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Use your fingers or a spudger to peel away all perimeter liners, exposing the adhesive.
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Check the frame and back glass for any stray liners and remove them. There should be no liners remaining.
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Use a hair dryer, heat gun, or an iOpener to heat the back glass perimeter until it's slightly too hot to touch.
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Use your fingers to firmly squeeze around the perimeter of the iPhone.
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Use a P2 pentalobe driver to install the two 7.4 mm-long screws on either side of the charge port.
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After your repair, run Apple's Repair Assistant. Navigate to Settings → General → About → Parts & Service History, tap Restart & Finish Repair, and follow the onscreen prompts.
Calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
After your repair, run Apple's Repair Assistant. Navigate to Settings → General → About → Parts & Service History, tap Restart & Finish Repair, and follow the onscreen prompts.
Calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.
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