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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 11 to full performance.

If your battery is swollen, take appropriate precautions.

Note: After the repair, your iPhone may display a warning about the “genuineness” of the battery, even when using original Apple parts. If your iPhone functions normally, you can safely ignore the warning.

For optimal performance, after completing this guide, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least two more hours. Then use your iPhone until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.

Video Overview

  1. iPhone 11 Battery Replacement, Remove the pentalobe screws: step 1, image 1 of 2 iPhone 11 Battery Replacement, Remove the pentalobe screws: step 1, image 2 of 2
    • Before you begin, discharge your iPhone 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 6.7 mm-long pentalobe screws at the bottom edge of the iPhone.

    • Opening the iPhone's display will compromise its waterproof seals. Have replacement seals ready before you proceed past this step, or take care to avoid liquid exposure if you reassemble your iPhone without replacing the seals.

    the right screws wouldn’t come off

    Yusef San Inocencio - Reply

    Hello guys, I still haven't found away to power off the iphone without using the screen. Cheers!

    danielaguirre93 - Reply

    You can try this.

    Quickly Press and release the volume up button.

    then Quickly Press and release the volume down button.

    then press and hold the power button and wait until it turns off.

    worked for me :D

    Benóný Egilson - Reply

  2. iPhone 11 Battery Replacement, Heat the lower edge of the phone: step 2, image 1 of 1
    • Heating the lower edge of the iPhone helps soften the adhesive securing the display, making it easier to open.

    • Use a hairdryer or heat gun or prepare an iOpener and apply it to the lower edge of the iPhone for about a minute.

  3. iPhone 11 Battery Replacement, Apply suction cup(s): step 3, image 1 of 2 iPhone 11 Battery Replacement, Apply suction cup(s): step 3, image 2 of 2
    • The next two steps demonstrate the iSclack, a handy tool that we recommend for anyone doing frequent repairs. If you aren't using the iSclack, skip down two steps for an alternate method.

    • If the plastic depth gauge is attached at the center of the iSclack, remove it now—it's not needed for larger iPhones like the iPhone 11.

    • Position the suction cups near the bottom edge of the iPhone—one on the front, and one on the back.

    • Press both suction cups firmly into place.

    • If your display or back glass is badly cracked, covering it with a layer of clear packing tape may help the suction cups adhere. The iSclack also includes two pieces of tape for this purpose.

  4. iPhone 11 Battery Replacement: step 4, image 1 of 3 iPhone 11 Battery Replacement: step 4, image 2 of 3 iPhone 11 Battery Replacement: step 4, image 3 of 3
    • Hold onto your iPhone securely and close the handle of the iSclack to slightly separate the screen from the rear case of the phone.

    • Don't try to completely separate the screen; a small opening along the bottom edge is all you need.

    • Insert an opening pick into the gap under the display on the lower edge of the iPhone.

    • Skip the next two steps.

    where do i get this from g

    Sami Pala - Reply

  5. iPhone 11 Battery Replacement: step 5, image 1 of 2 iPhone 11 Battery Replacement: step 5, image 2 of 2
    • If you're using a single suction handle, apply it to the bottom edge of the phone, while avoiding the curved portion of the glass.

    • If your display is badly cracked, covering it with a layer of clear packing tape may help the suction cup to stick. Alternatively, you can use very sticky tape instead of the suction cup. Or if all else fails, you can superglue the suction cup to the broken screen.

  6. iPhone 11 Battery Replacement, Lift the display slightly: step 6, image 1 of 3 iPhone 11 Battery Replacement, Lift the display slightly: step 6, image 2 of 3 iPhone 11 Battery Replacement, Lift the display slightly: step 6, image 3 of 3
    • Pull up on the suction cup with firm, constant pressure to create a slight gap between the front panel and rear case.

    • Insert an opening pick into the gap.

    • The watertight adhesive holding the display in place is very strong; creating this initial gap takes a significant amount of force. If you're having a hard time opening a gap, apply more heat, and gently rock the screen up and down to weaken the adhesive until you create enough of a gap to insert your tool.

  7. iPhone 11 Battery Replacement, Separate the screen adhesive: step 7, image 1 of 3 iPhone 11 Battery Replacement, Separate the screen adhesive: step 7, image 2 of 3 iPhone 11 Battery Replacement, Separate the screen adhesive: step 7, image 3 of 3
    • Slide the opening pick around the lower left corner and up the left edge of the iPhone, slicing through the adhesive holding the display in place.

    • Don't insert the opening pick too far into the iPhone, or you may cause damage to internal components.

  8. iPhone 11 Battery Replacement: step 8, image 1 of 3 iPhone 11 Battery Replacement: step 8, image 2 of 3 iPhone 11 Battery Replacement: step 8, image 3 of 3
    • Re-insert your pick at the bottom edge of the iPhone, and slide it up the right side to continue separating the adhesive.

    • Don't insert the pick very far, or you may damage the display cables along this side of the iPhone. Insert it only a few millimeters, or about the width of the display bezel.

  9. iPhone 11 Battery Replacement: step 9, image 1 of 3 iPhone 11 Battery Replacement: step 9, image 2 of 3 iPhone 11 Battery Replacement: step 9, image 3 of 3
    • The top edge of the display is secured with both glue and clips.

    • Gently pull the right edge of the display down slightly (in the direction of the Lightning port).

    • Insert your pick into the top-right corner of the phone.

  10. iPhone 11 Battery Replacement: step 10, image 1 of 2 iPhone 11 Battery Replacement: step 10, image 2 of 2
    • Continue pulling the display down (toward the Lightning port) as needed in order to make a gap large enough for the pick.

    • Slide the pick to the top left corner and cut any remaining adhesive securing the display.

    • Again, don't insert the pick more than a few millimeters—about the width of the display bezel—or you may damage the Face ID sensor array.

  11. iPhone 11 Battery Replacement, Remove the suction cup(s): step 11, image 1 of 1
    • Pull the small nub on the suction cup to detach it from the front panel.

    • If you used an iSclack and it's still affixed to the iPhone, remove it now.

  12. iPhone 11 Battery Replacement, Open the iPhone: step 12, image 1 of 3 iPhone 11 Battery Replacement, Open the iPhone: step 12, image 2 of 3 iPhone 11 Battery Replacement, Open the iPhone: step 12, image 3 of 3
    • Open the iPhone by swinging the display up from the left side, like the back cover of a book.

    • Don't try to fully separate the display yet, as several fragile ribbon cables still connect it to the iPhone's logic board.

    • Prop the display up against something sturdy.

    • During reassembly, lay the display in position, align the clips along the top edge, and carefully press the top edge into place before snapping the rest of the display down. If it doesn't click easily into place, check the condition of the clips around the perimeter of the display and make sure they aren't bent.

  13. iPhone 11 Battery Replacement, Display Assembly: step 13, image 1 of 2 iPhone 11 Battery Replacement, Display Assembly: step 13, image 2 of 2
    • To access the screws in the following step, tilt the display by slightly lifting its lower edge.

    • Be careful not to strain or tear the display cables.

    • Use a Y000 driver to remove the three 1.1 mm-long screws securing the battery connector bracket.

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.

    • During reassembly, this is a good point to power on your iPhone and test all functions before you seal the display in place. Be sure to power your iPhone back down completely before you continue working.

    During reassembly, I had to connect my phone to the charger before it would power up.

    Austin Culberson - Reply

  14. iPhone 11 Battery Replacement, Remove the battery connector cover: step 15, image 1 of 1
    • Remove the bracket.

  15. iPhone 11 Battery Replacement, Disconnect the battery: step 16, image 1 of 2 iPhone 11 Battery Replacement, Disconnect the battery: step 16, image 2 of 2
    • Use a spudger or a clean fingernail to pry the battery connector up from its socket on the logic board.

    • Try not to damage the black silicone seal surrounding this and other board connections. These seals provide extra protection against water and dust intrusion.

    • Bend the connector slightly away from the logic board to prevent it from accidentally contacting the socket.

  16. iPhone 11 Battery Replacement, Unscrew the logic board cover screws: step 17, image 1 of 2 iPhone 11 Battery Replacement, Unscrew the logic board cover screws: step 17, image 2 of 2
    • Use a Y000 driver to remove the five 1.1 mm screws securing the logic board cover bracket.

  17. iPhone 11 Battery Replacement, Remove the logic board cover bracket: step 18, image 1 of 1
    • Remove the bracket.

  18. iPhone 11 Battery Replacement, Disconnect the display: step 19, image 1 of 3 iPhone 11 Battery Replacement, Disconnect the display: step 19, image 2 of 3 iPhone 11 Battery Replacement, Disconnect the display: step 19, image 3 of 3
    • Use a spudger or a fingernail to disconnect the LCD panel cable connector.

    • Disconnect the digitizer connector next to it.

  19. iPhone 11 Battery Replacement, Disconnect the front sensors: step 20, image 1 of 2 iPhone 11 Battery Replacement, Disconnect the front sensors: step 20, image 2 of 2
    • Use the point of a spudger or a fingernail to disconnect the front panel sensor assembly connector.

  20. iPhone 11 Battery Replacement, Remove the display assembly: step 21, image 1 of 1

    After this step its probably a good idea to test the new screen (you dont have to plug in the front camera assembly)

    Richard Kraus - Reply

  21. iPhone 11 Battery Replacement, Remove the lower bracket screws: step 22, image 1 of 2 iPhone 11 Battery Replacement, Remove the lower bracket screws: step 22, image 2 of 2
    • Using a Phillips driver, remove the five screws securing the bracket below the Taptic engine and speaker:

    • Four 1.6 mm screws

    • One 1.3 mm screw

    The top right screw (1.6 mm marked red) is actually different from the other three 1.6mm screws as it's thread is slightly thicker.

    Florian - Reply

    yep same experience here

    Kai Mcpherson -

  22. iPhone 11 Battery Replacement, Remove the lower bracket: step 23, image 1 of 1
    • Remove the lower bracket.

  23. iPhone 11 Battery Replacement, Remove the Taptic Engine connector tape: step 24, image 1 of 3 iPhone 11 Battery Replacement, Remove the Taptic Engine connector tape: step 24, image 2 of 3 iPhone 11 Battery Replacement, Remove the Taptic Engine connector tape: step 24, image 3 of 3
    • Use tweezers to lift and remove the black tape and rubber pad covering the Taptic Engine connector.

    • Use a little heat from a hair dryer or iOpener to make the tape easier to peel up and re-adhere later.

  24. iPhone 11 Battery Replacement, Unscrew the lower speaker: step 25, image 1 of 2 iPhone 11 Battery Replacement, Unscrew the lower speaker: step 25, image 2 of 2
    • Remove the five screws securing the speaker and brackets:

    • One 1.9 mm Phillips screw

    • One 2.3 mm Phillips screw

    • One 3.1 mm standoff screw

    • Two 1.6 mm Phillips screws

    In my experience, the two green screws are not interchangeable

    PJ McConnell - Reply

  25. iPhone 11 Battery Replacement, Remove the grounding clip: step 26, image 1 of 2 iPhone 11 Battery Replacement, Remove the grounding clip: step 26, image 2 of 2
    • Remove the small grounding clip on the top right corner of the speaker.

    Salut comment je peux trouver cette pièce ?

    kenyfaya973 - Reply

  26. iPhone 11 Battery Replacement, Remove the Taptic Engine connector cover: step 27, image 1 of 1
    • Remove the Taptic Engine connector cover.

  27. iPhone 11 Battery Replacement, Remove the speaker standoff screw: step 28, image 1 of 3 iPhone 11 Battery Replacement, Remove the speaker standoff screw: step 28, image 2 of 3 iPhone 11 Battery Replacement, Remove the speaker standoff screw: step 28, image 3 of 3
    • Lift and push aside the small board covering the remaining speaker screw in the bottom right corner of the iPhone.

    • Remove the 2.4 mm standoff screw underneath.

  28. iPhone 11 Battery Replacement, Loosen the speaker: step 29, image 1 of 2 iPhone 11 Battery Replacement, Loosen the speaker: step 29, image 2 of 2
    • Insert a spudger under the top edge of the speaker, near the edge of the iPhone's case.

    • Gently pry up and lift the top edge of the speaker.

  29. iPhone 11 Battery Replacement: step 30, image 1 of 2 iPhone 11 Battery Replacement: step 30, image 2 of 2
    • Hold the speaker by its side edges and rock it side-to-side, separating the adhesive securing it to the bottom edge of the iPhone.

    • Pull the speaker away from the bottom edge of the iPhone until the adhesive gasket separates.

  30. iPhone 11 Battery Replacement, Remove the speaker: step 31, image 1 of 2 iPhone 11 Battery Replacement, Remove the speaker: step 31, image 2 of 2
    • Remove the speaker.

    • Optionally, to help protect against water and dust intrusion, replace the speaker's adhesive gasket during reassembly:

    • Peel away any remaining adhesive with tweezers.

    • Prep the area underneath by cleaning it with a bit of isopropyl alcohol and a lint-free cloth or coffee filter so that the gasket adheres properly.

    • Install a new gasket onto the speaker, and then install the speaker.

  31. iPhone 11 Battery Replacement, Unscrew the Taptic Engine: step 32, image 1 of 2 iPhone 11 Battery Replacement, Unscrew the Taptic Engine: step 32, image 2 of 2
    • Use a Phillips driver to remove the two 1.8 mm screws securing the Taptic Engine.

  32. iPhone 11 Battery Replacement, Disconnect the Taptic Engine: step 33, image 1 of 2 iPhone 11 Battery Replacement, Disconnect the Taptic Engine: step 33, image 2 of 2
    • Use a spudger to disconnect the Taptic Engine flex cable by prying it straight up from its socket.

  33. iPhone 11 Battery Replacement, Remove the Taptic Engine: step 34, image 1 of 1
    • Remove the Taptic Engine.

  34. iPhone 11 Battery Replacement, Locate the adhesive pull tabs: step 35, image 1 of 1
    • Six pieces of stretch-release adhesive hold the battery in place—three near the top edge, and three near the bottom.

    • Each piece of adhesive has a black pull-tab at one end, which is lightly adhered and folded onto the top of the battery.

  35. iPhone 11 Battery Replacement, Peel back the lower pull tabs: step 36, image 1 of 3 iPhone 11 Battery Replacement, Peel back the lower pull tabs: step 36, image 2 of 3 iPhone 11 Battery Replacement, Peel back the lower pull tabs: step 36, image 3 of 3
    • Peel back the three battery adhesive pull tabs from the bottom edge of the battery.

    • Be careful not to jab the battery with any sharp tools—a punctured battery may leak dangerous chemicals or catch fire.

  36. iPhone 11 Battery Replacement: step 37, image 1 of 1
    • In the following steps, you'll pull each tab to slowly stretch out the adhesive underneath the battery. The adhesive releases as it stretches.

    • If the strips break, don't panic! Keep reading for some additional steps for removing broken strips.

    • To increase your odds of success:

    • Don't press down on the battery. Hold the iPhone firmly by its sides.

    • Keep the strips flat and unwrinkled as you pull.

    • Pull very slowly, giving the strip time to stretch and separate. It takes around 30 seconds of stretching to remove each strip.

    • Pull at a low angle so the strip doesn't snag along the bottom edge of the battery.

    • If a strip does break off underneath the battery and cannot be retrieved, move on to the other strips and then continue with the additional steps below.

  37. iPhone 11 Battery Replacement, Remove the first adhesive strip: step 38, image 1 of 3 iPhone 11 Battery Replacement, Remove the first adhesive strip: step 38, image 2 of 3 iPhone 11 Battery Replacement, Remove the first adhesive strip: step 38, image 3 of 3
    • Slowly pull one battery adhesive tab away from the battery, towards the bottom of the iPhone.

    • Pull steadily, maintaining constant tension on the strip until it slips out from between the battery and the rear case.

    • The strip will stretch to many times its original length. Continue pulling and re-grab the strip near the battery if necessary.

    • If the battery adhesive tabs break during the removal process, use your fingers or tweezers to retrieve the remaining length of adhesive, and continue pulling.

    • If any of the adhesive strips break underneath the battery and cannot be retrieved, try to remove the other strips, and then proceed as instructed below.

  38. iPhone 11 Battery Replacement, Remove two more adhesive strips: step 39, image 1 of 3 iPhone 11 Battery Replacement, Remove two more adhesive strips: step 39, image 2 of 3 iPhone 11 Battery Replacement, Remove two more adhesive strips: step 39, image 3 of 3
    • Repeat the above steps to remove the other two adhesive strips near the bottom edge of the iPhone.

  39. iPhone 11 Battery Replacement, Peel away the top adhesive pull tabs: step 40, image 1 of 3 iPhone 11 Battery Replacement, Peel away the top adhesive pull tabs: step 40, image 2 of 3 iPhone 11 Battery Replacement, Peel away the top adhesive pull tabs: step 40, image 3 of 3
    • Peel back the three battery adhesive tabs from the top edge of the battery.

    • Don't touch the Face ID sensor modules near the top of the iPhone.

  40. iPhone 11 Battery Replacement, Remove the three top adhesive strips: step 41, image 1 of 3 iPhone 11 Battery Replacement, Remove the three top adhesive strips: step 41, image 2 of 3 iPhone 11 Battery Replacement, Remove the three top adhesive strips: step 41, image 3 of 3
    • Pull the top adhesive strips out one at a time, using the same method you've used to pull the bottom strips.

    • Be sure to hold onto the battery as you remove the final strip, or it may fling out of the iPhone unexpectedly.

    • If you removed all of the adhesive strips successfully, skip the next step.

    • If any of the adhesive strips broke off underneath the battery and could not be retrieved, continue with the next step below.

  41. iPhone 11 Battery Replacement, Removing a battery that's still stuck: step 42, image 1 of 2 iPhone 11 Battery Replacement, Removing a battery that's still stuck: step 42, image 2 of 2
    • If any of the adhesive strips broke off and the battery remains stuck to the rear case, remove it by adding a few drops of isopropyl alcohol (90% or greater) underneath the battery near the stuck strip(s).

    • After about a minute, gently lift the battery.

    • The battery should come free with minimal force. If not, add a little more isopropyl alcohol and try again. Do not bend or puncture the battery.

  42. iPhone 11 Battery Replacement, Removing a stuck battery (alternate method): step 43, image 1 of 3 iPhone 11 Battery Replacement, Removing a stuck battery (alternate method): step 43, image 2 of 3 iPhone 11 Battery Replacement, Removing a stuck battery (alternate method): step 43, image 3 of 3
    • If your battery is stuck and an appropriate liquid solvent is not available, prepare an iOpener or use a hair dryer to heat the rear case directly behind the battery.

    • Heat the iPhone until the rear case is slightly too hot to comfortably touch, but no more.

    • Flip the iPhone back over and thread a strong piece of string (such as dental floss or a length of thin guitar string) underneath the battery.

    • Wear gloves to protect your fingers, or wrap each end of the string around a tool.

    • Pull the string from side to side in a sawing motion to separate the adhesive. This can take some time since the adhesive is slow to deform, but with patience it will come free. Do not deform or damage the battery.

    • Start from the top or bottom edge of the battery, and pull toward the middle. Don't pull the string through the middle third of the battery, or you may damage the ribbon cables or the wireless charging coil directly underneath.

    • If you choose to use pry tools to lift the battery out of the iPhone, use extreme caution or you may damage the ribbon cables or the wireless charging coil directly underneath the battery.

  43. iPhone 11 Battery Replacement, Remove the battery: step 44, image 1 of 1
    • Remove the battery.

    • Reinstall the Taptic Engine and speaker before installing a new battery. This helps keep the battery aligned correctly during installation.

    • Before you adhere the replacement battery, temporarily reconnect the battery connector to the motherboard socket. This ensures that the battery is properly aligned in its recess.

    • Adhere the battery, disconnect it, and continue reassembling your device.

    • If your new battery doesn’t have adhesive preinstalled, refer to this guide to replace the adhesive strips.

    • Perform a force restart after reassembly. This can prevent several issues and simplify troubleshooting.

Conclusion

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.

To reassemble your device, follow the above steps in reverse order.

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 iPhone 11 Answers community for help.

66 other people completed this guide.

Jeff Suovanen

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6 Comments

Also, it would be nice to have a step by step of how to reprogram the new battery to bypass the “non-genuine warning”

Olamide Olayinka - Reply

I have been looking for a solution for this! Seems the only way is to remove the BMS board from the original battery. Requires soldering.

Mohammad Ali -

Yea. There's a step by step guide on how to do just that here

Joseftech -

Apple specifically does this to prevent 3rd parties from repairing their products. A Simple google search would have yielded this.

Brian Kennally -

La guida consiglia di rimuovere molte parti, in realtà basta solo rimuovere lo schermo ed acquistare una batteria già assemblata.

Io personalmente o impiegato 45 minuti andando molto lento e molto attento alle mie operazioni.

mario giorno - Reply

When opening up a phone, why doesn't ifixit recommend to use a static electricity grounding wrist band since such charge can damage phone electronics if not grounded? (Apple technicians use such).

How come ifixit does not give advice after a battery change how to reprogramme the phone to its full functioning capability since some are lost when a battery is replaced? (Apple technicians include this service in a battery change).

What are the statistics on after market batteries not performing as good as OEM parts and what are statistics where such after market batteries harm the phone? All batteries are made in China but Apple endorsed battery makers are required to adhere to strict standards.

L D - Reply

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