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iPhone 15 Pro Max Battery Replacement

Use this guide to replace the battery in your...

Apple iPhone 15 Pro Max Moderate 1 - 2 hours Guide 166239

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This attributed iFixit guide is displayed through Fixonic's recorded commercial API permission. iFixit remains the independent source and author of the procedure.

Guide overview

Before you begin

Use this guide to replace the battery in your iPhone 15 Pro Max. iPhone batteries are rated to hold 80% of their capacity for up to 1000 charge cycles. If your iPhone needs to be charged more often or runs slower, it might be time to replace the battery. You'll need replacement screen adhesive to complete this repair. If your new battery doesn't come with adhesive pre-installed, you'll need replacement adhesive for it, as well. If your battery is swollen, take appropriate precautions. Note: Due to Apple's parts pairing restrictions, on iOS 17.6 and earlier, you may receive warnings about your replacement part and lose access to battery health data, but your new battery will otherwise work normally. On iOS 18 and newer, calibrate authentic Apple batteries using Repair Assistant.

Step 1

Prepare your phone for disassembly

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Allow your phone's battery to drain below 25%, as a charged lithium-ion battery is a potential safety hazard.
Unplug any cables from your phone.
Hold the power and either volume buttons and slide to power off your phone.

Step 2

Tape over any cracks

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TOOL USED ON THIS STEP Suction Handle Referenced by the iFixit guide

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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.
Make sure there's a smooth area near the bottom edge that's big enough for a suction cup to stick to.

Step 3

Mark your opening picks

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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If inserted too far, an opening pick can damage your device. Follow this step to mark your pick and prevent damage.
Measure 3 mm from the tip and mark the opening pick with a permanent marker.
You can also mark the other corners of the pick with different measurements.
Alternatively, tape a coin to a pick 3 mm from the tip.

Step 4

Remove the pentalobe screws

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TOOL USED ON THIS STEP P2 Pentalobe Screwdriver iPhone Referenced by the iFixit guide

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TOOL USED ON THIS STEP Phillips #000 Screwdriver Referenced by the iFixit guide

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Use a P2 pentalobe driver to remove the two 7.2 mm-long screws on either side of the charging port.

Step 5

Heat the bottom edge

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TOOL USED ON THIS STEP Heat Gun Referenced by the iFixit guide

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Use a hair dryer or heat gun to heat the bottom edge of the screen until it's hot to the touch.
Be careful not to heat the phone hotter than this—the battery is susceptible to heat damage.

Step 6

Insert an opening pick

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TOOL USED ON THIS STEP Suction Handle Referenced by the iFixit guide

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Apply a suction handle to the bottom edge of the screen.
Pull up on the handle with a strong, steady force to create a gap between the screen and the frame.
Insert the tip of an opening pick into the gap.

Step 7

Screen information

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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As you slice the adhesive securing the screen in the next steps, be careful of the following areas:
There are two delicate cables connecting the screen to the phone: one just above the action button, and the other near the middle of the left edge.
There are multiple spring contacts around the perimeter of the phone. Be extra careful not to insert your pick deeper than suggested in these locations to avoid bending the contacts.

Step 8

Separate the bottom edge adhesive

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Don't insert your opening pick deeper than 3 mm along the bottom edge.
Slide your pick back and forth along the bottom edge to separate the adhesive.
Leave your pick inserted in the bottom right corner to prevent the adhesive from re-sealing.

Step 9

Heat the right edge

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Heat the right edge of the screen until it's hot to the touch.

Step 10

Position the opening pick

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Don't insert your pick deeper than 5 mm along the right edge.
Slide your pick around the bottom right corner of the screen and toward the power button until you feel a hard stop at a clip securing the screen.
Rotate your pick so the flat edge is under the screen.

Step 11

Release the right clip

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Twist the pick to increase the gap between the screen and the frame until the right clip releases.
Insert a second opening pick to the right of the first pick.

Step 12

Separate the right edge adhesive

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Slide the first pick back to the bottom right corner of the screen.
Slide the second pick to the top right corner of the screen to separate the adhesive.
Leave these picks inserted to prevent the adhesive from resealing.

Step 13

Heat the top edge

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Heat the top edge of the screen until it's hot to the touch.

Step 14

Separate the top edge adhesive

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Don't insert your pick deeper than 3 mm along the top edge.
Slide your pick around the top right corner and along the top edge to release the two clips and adhesive securing it.

Step 15

Heat the left edge

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Heat the left edge of the screen until it's hot to the touch.

Step 16

Separate the left edge adhesive

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Don't insert your pick deeper than 2 mm along the left edge to avoid the two cables connecting the screen to the phone.
Rotate your pick around the top left corner of the screen.
Slide your pick to the bottom left corner of the screen to separate the adhesive.

Step 17

Swing open the screen

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Gently swing open the screen to the left of the phone.
If the screen feels stuck, go back around the perimeter to check for missed sections of adhesive or stuck clips.
Rest the screen against a box or similar object so it doesn't strain the cables.

Step 18

Unfasten the logic board cover

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TOOL USED ON THIS STEP P2 Pentalobe Screwdriver iPhone Referenced by the iFixit guide

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TOOL USED ON THIS STEP Phillips #000 Screwdriver Referenced by the iFixit guide

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Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.
Use a tri-point Y000 driver to remove the six screws securing the logic board cover:
One 2.1 mm‑long screw
Five 1.5 mm‑long screws

Step 19

Remove the logic board cover

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TOOL USED ON THIS STEP Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Use tweezers or your fingers to grab and slide the logic board cover toward the bottom of the phone to clear the sensor cable.
Remove the cover.

Step 20

Disconnect the battery

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Use the tip of an opening pick to pry up and disconnect the battery press connector.
To reconnect a press connector, align it over its socket and gently press down on one side until it clicks into place, then press down on the other side. Make sure it sits flat, as the insulating rubber around the sockets might prevent it from connecting fully.

Step 21

Disconnect the ambient light sensor

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Use the point of a spudger to pry up and disconnect the ambient light sensor press connector from the top left of the logic board.

Step 22

Disconnect the screen

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Disconnect the screen press connector.

Step 23

Remove the screen

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Remove the screen.
During reassembly, stop here and use this guide to install new screen adhesive.
Be careful not to damage any of the spring contacts as you clean the frame.

Step 24

Unfasten the loudspeaker

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TOOL USED ON THIS STEP P2 Pentalobe Screwdriver iPhone Referenced by the iFixit guide

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TOOL USED ON THIS STEP Phillips #000 Screwdriver Referenced by the iFixit guide

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Use your Phillips #000 driver to remove the four screws securing the loudspeaker:
Three 2.1 mm screws
One 2.9 mm screw

Step 25

Separate the tape

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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A piece of tape connects the top edges of the Taptic Engine and loudspeaker.
Insert an opening pick under the tape in the small gap between the Taptic Engine and the loudspeaker.
Slide the pick toward the left edge of the phone to separate the tape from the Taptic Engine.

Step 26

Remove the loudspeaker

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Insert the flat end of a spudger between the right edge of the loudspeaker and the frame.
Pry up until you can grab the loudspeaker with your fingers.
Remove the loudspeaker.

Step 27

Disconnect the Taptic Engine

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Use the tip of your spudger to pry up and disconnect the Taptic Engine press connector.

Step 28

Remove the grounding clip

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TOOL USED ON THIS STEP Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Remove the two screws securing the grounding clip:
One 1.2 mm Phillips #000 screw
One 1.9 mm tri-point Y000 screw
Use tweezers to remove the grounding clip.

Step 29

Unfasten the Taptic Engine

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TOOL USED ON THIS STEP P2 Pentalobe Screwdriver iPhone Referenced by the iFixit guide

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TOOL USED ON THIS STEP Phillips #000 Screwdriver Referenced by the iFixit guide

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Remove the two screws securing the Taptic Engine:
One 2.9 mm Phillips #000 screw
One 3.8 mm standoff screw
If you don't have a standoff driver, you may use a thin flathead driver—but be careful not to strip the shallow notches in the screw heads.

Step 30

Remove the Taptic Engine

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Insert the flat end of a spudger between the left edge of the Taptic Engine and the frame.
Pry up until you can grab the Taptic Engine with your fingers.
Remove the Taptic Engine.

Step 31

Adhesive information

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Three sections of stretch release adhesive secure the battery to the frame—two along the bottom and one on top.
Each strip has a black pull tab at its end, which is lightly adhered to the edge of the battery.
In the following steps, you'll pull each tab out from underneath the battery.
The strips loosen when stretched, but might break off before you can fully remove them, especially the top edge strip. If any break, don't worry! Keep reading for an alternate way to remove the battery.

Step 32

Separate the pull tabs

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TOOL USED ON THIS STEP Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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Don't puncture or dent the battery with your tool, as it can leak dangerous chemicals or catch fire if damaged.
Use the tip of an opening pick to gently unstick an edge of an adhesive pull tab from the edge of the battery.
Use blunt nose tweezers to grip the edge of the pull tab and pull it completely off the edge of the battery.
Repeat for the other two pull tabs.

Step 33

Remove the stretch release adhesive

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Pull one of the pull tabs out from under the battery until you can grip it with your fingers or wrap it around your tool.
Hold the phone steady using the edges of the frame—don't press down on the battery.
Pull the strip slowly, evenly, and at a low angle without dragging on other components.
Continue pulling, re-gripping or wrapping it around your tool as you go, until the strip fully releases from under the battery.
If the strip breaks off, try to retrieve it. If you can't grip it from under the battery, move on to the next step.
Repeat this step for the other two strips.

Step 34

Alternate method to remove the battery

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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If you removed all three stretch release adhesive strips, congratulations—you can now remove the battery! If not, follow the next two steps to separate the adhesive with isopropyl alcohol and a plastic card.
If the top strip remains, prop up the top edge of the phone.
If either of the bottom strips remain, prop up the left edge of the phone (the side with the volume buttons).
Use a pipette or syringe to apply a few drops of highly-concentrated isopropyl alcohol (over 90%) to the elevated edge of the battery.
Wait one minute for the isopropyl alcohol to flow under the battery and soften the adhesive.

Step 35

Pry up the battery

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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TOOL USED ON THIS STEP iFixit Opening Picks (Set of 6) Referenced by the iFixit guide

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Don't bend or crease your battery. If the adhesive feels stubborn, apply a few more drops of isopropyl alcohol and try again.
Insert the short edge of a plastic card between the bottom edge of the battery and the frame.
Be careful not to scrape the frame underneath the battery—the wireless charging coil is exposed near the center.
Gently pry up the battery until the adhesive fully separates.
Depending on how strong your adhesive is, this may take some time. Allow up to a minute of constant pressure for the adhesive to loosen.

Step 36

Remove the battery

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TOOL USED ON THIS STEP ESD Safe Blunt Nose Tweezers Referenced by the iFixit guide

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TOOL USED ON THIS STEP Spudger Referenced by the iFixit guide

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Remove the battery.
To install a new battery:
Clean your frame with isopropyl alcohol and a lint-free or microfiber cloth.
Before applying adhesive, temporarily reconnect your new battery and place it in its recess to check if it fits and that the cable reaches the socket on the logic board. Disconnect the battery before continuing.
Check out this guide to apply new stretch release adhesive strips to your battery, if it doesn't already come with adhesive installed.
If you don't have stretch release adhesive, use thin, double-sided tape to secure it.