How to Replace iPhone 13 Pro Battery: Step-by-Step DIY Guide

Here is the complete, step-by-step English guide for the iPhone 13 Pro Battery Replacement, structured exactly like the official repair workflow including the critical removal of the loudspeaker and Taptic Engine.

⚠️ Preparation & Safety Warnings

Discharge the Battery: Before you begin, discharge your iPhone battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured.
Tape Cracked Glass: If your screen or back glass is cracked, cover the entire surface with clear packing tape to contain any glass shards and maintain suction during removal.
System Notifications Note:
- On iOS 17.6 and earlier, replacing the battery with a non-original or unbundled third-party part will trigger an "Unknown Part" or "Important Battery Message." The phone will function perfectly normal, and you can safely ignore this.
- On iOS 18 and later, if you install a genuine Apple battery, you can use the built-in Repair Assistant in Settings to configure and authenticate the part.
Calibrate the New Battery: For optimal performance, charge it to 100% and keep charging it for at least two more hours. Then, use your iPhone until it shuts down due to low battery. Finally, charge it uninterrupted to 100%.

📐 Required Tools

Pentalope (P2) screwdriver (For bottom screws)
Y000 Tri-point screwdriver (For internal bracket screws)
Phillips #000 screwdriver
Heating Pad or Heat Gun (To soften screen adhesive)
Suction cup
Plastic opening picks and a spudger
Isopropyl alcohol (90% or higher, to dissolve battery adhesive)
Replacement screen adhesive and battery adhesive pull-tabs

📝 Step-by-Step Replacement Guide

Part 1: Opening the Phone & Removing the Screen

Step 1: Remove the Pentalobe screws

Power off your iPhone and disconnect any cables.
Remove the two 6.8 mm-long Pentalobe P2 screws located on either side of the Lightning/Lightning-shaped charging port.

Step 2: Heat the bottom edge

Apply a heat gun to the edge of the iPhone (keep temperature around 60–70°C) to soften the waterproof adhesive securing the display.

Step 3: Apply suction and create a gap

Place your suction cup near the bottom edge of the screen, avoiding the very edge of the glass.
Pull up on the suction cup with firm, constant pressure to create a slight gap between the screen assembly and the rear case.

Step 4: Slice the adhesive perimeter

Insert a plastic opening pick into the gap you just created.
⚠️ Critical Warning: Do not insert the pick deeper than 2–3 mm at this stage to prevent damaging the OLED panel or internal cables.
Slide the pick back and forth along the bottom edge to slice through the adhesive.
Slowly slice up the right edge of the phone to separate its adhesive.
Carefully slice up the left edge of the phone.
Carefully slice around the top edge to separate the remaining adhesive near the front sensors.

Step 5: Open the iPhone like a book

Gently lift the right side of the screen up and open the phone from right to left, like opening a book.
Do not try to fully separate the screen yet. Prop it up against a box or steady object at a 90-degree angle so it doesn't strain the display cables on the left.

Part 2: Disconnecting the Cables

Step 6: Remove the lower connector bracket

Use a Y000 screwdriver to remove the screws securing the lower display and battery connector cover profile.
Remove the metal bracket with tweezers.

Step 7: Disconnect the battery

Use the tip of a plastic spudger to pry the battery connector straight up out of its socket.
Note: Always disconnect the battery before disconnecting or reconnecting any other internal components to prevent short circuits.
Bend the connector slightly away from the socket to prevent accidental contact.

Step 8: Disconnect the screen cables

Use your spudger to pry up and disconnect both the display and touch matrix ribbon cables.

Step 9: Remove the upper sensor bracket & disconnect

Use a Y000 screwdriver to remove the screws securing the upper sensor assembly bracket.
Remove the metal bracket with tweezers.

Step 10: Disconnect the front sensor assembly

Use your spudger to disconnect the front sensor assembly cable.

Step 11: Remove the Screen

The screen assembly is now completely free. Set it aside in a safe place.

Part 3: Removing the Loudspeaker & Taptic Engine

(To safely and easily remove the adhesive strips and taking out the battery, it is highly recommended to first remove the bottom speaker and Taptic Engine. If you are experienced, you can also attempt to pull off the adhesive strips directly and lift the battery out.)

Step 12: Remove the lower loudspeaker

Unscrew the four Phillips screws holding the small metal bracket to the right of the Taptic Engine.
Carefully remove the speaker from the phone. (Do not use metal tweezers to avoid puncturing the battery).

Step 13: Remove the Taptic Engine

Use your spudger to disconnect the Taptic Engine ribbon cable from its socket.

Remove the three dedicated screws securing the Taptic Engine.
Lift the Taptic Engine straight out of the phone.

Part 4: Extracting the Battery

Step 14: Unpeel the adhesive pull-tabs

The L-shaped battery is secured by multiple white adhesive stretch-release strips.
Use tweezers or your fingers to peel back the black loops/tabs located on the top and bottom edges of the battery to expose the white adhesive.
Grab the end of a white adhesive strip.
Pull the strip out slowly and horizontally—keep the angle as flat and close to the phone's bottom frame as possible. Do not pull upward.
The strip will stretch to several times its original length. Repeat this for all available pull-tabs.
If a strip breaks: Try to retrieve the broken end with your tweezers and continue pulling. If it's unreachable, move to the next step.

Step 15: Apply Isopropyl Alcohol (If tabs broke)

If any adhesive strips snapped underneath the battery, never pry the battery with force or use metal tools, as puncturing the battery is highly dangerous.
Apply a few drops of high-concentration isopropyl alcohol into the gaps surrounding the battery.
Tilt the phone slightly to let the alcohol run underneath and dissolve the adhesive for 1 to 2 minutes.

Step 16: Safely lift and remove the battery

Insert a plastic opening pick or a plastic spudger under the edge of the battery (avoiding the side closest to the logic board).
Gently pry up until the battery detaches completely. Lift the old battery out.

🔄 Reassembly

Clean Residual Adhesive: Use isopropyl alcohol and a lint-free cloth to thoroughly clean any remaining screen adhesive on the frame and old battery tape inside the battery well.
Apply New Battery Tape: Stick the new stretch-release adhesive strips to the bottom of the new battery, then position it inside the phone. Test-fit the alignment of the battery cable to the motherboard socket before pressing down, but keep it disconnected.
Apply New Screen Adhesive: Lay down a fresh perimeter of custom-cut waterproof display adhesive tape along the chassis rim.
Reconnect in Correct Order:
- Reconnect the top sensor cable.
- Reconnect the screen display and touch cables.
- Plug in the battery connector LAST.
Dry-Run Test: Before pressing the screen down into its adhesive, turn the iPhone on to ensure the display, touch response, and charging capabilities work flawlessly.
Seal the Phone: Power off, reinstall all internal metal brackets with their correct screws (be careful not to over-tighten or mix up long/short screws), swing the screen closed, press the edges firmly into place, and secure the two bottom Pentalobe screws.