How to Replace an iPhone 13 Pro Battery
The iPhone 13 Pro battery (ProMotion 120Hz display) is a very common replacement. This guide covers the full procedure and how to avoid the 'Not a genuine battery' warning. Average time: 25-35 minutes. Difficulty: medium.
Warnings Before You Start
- Disconnect the battery connector before any other component.
- Do not puncture or bend the lithium cell. If the adhesive strips break, heat to ~60°C and lift with a plastic spudger.
- Standard aftermarket batteries trigger the 'Battery Service' warning: use self-diagnosing cells or program the BMS.
Required Parts
Recommended Tools
- Pentalobe P2 screwdriver
- Tri-wing Y000 screwdriver
- Phillips #00 screwdriver
- Suction cup + thin prying tools
- Heating plate or hot air gun
- Antistatic tweezers
- Replacement battery adhesive strips
Step-by-Step Procedure
- 1
Turn off the phone and remove the pentalobe screws
Fully power off the device. On the bottom edge, on either side of the Lightning connector, remove the 2 P2 pentalobe screws and keep them separate.
- 2
Heat the edges and open the display like a book
Heat the perimeter of the display to 70-80°C for 2-3 minutes (heating plate or hot air). Apply the suction cup above the bottom area, create a gap and insert a pick; slide it along the sides to cut the adhesive. Open the screen like a book up to ~90°, supporting it with a stand.
💡 Tip: Do not exceed 80°C: you risk permanent stains on the OLED and damage to the flex cables. - 3
Disconnect the battery connector
Remove the metal bracket covering the connectors (tri-wing Y000 screws). Using a spudger, lift the battery connector: this is the first step to work safely and avoid short circuits.
- 4
Disconnect the display connectors and remove the screen (if necessary)
If you need to fully clear the battery compartment, remove the display connector cover (Phillips #00 screws) and disconnect the display flex cables. Set the screen aside on an antistatic surface.
- 5
Release the battery adhesive strips
Underneath the battery are the stretch-release adhesive strips. Pull them parallel to the battery surface, slowly and steadily, one at a time. Do not pull at an angle or they will break.
💡 Tip: If a strip breaks, stop: heat to ~60°C for 2 minutes under the battery and gently lift with a plastic spudger. Never puncture the lithium cell. - 6
Remove the old battery
Once all the strips are released, the battery comes out without force. If you feel resistance, heat it a bit more. Do not pry on the cell with metal tools.
- 7
Clean the housing and apply the new adhesive strips
Remove any adhesive residue from the housing using 99% isopropyl alcohol and an antistatic cloth. Apply the new adhesive strips to the replacement battery, then position the battery aligning the connector.
- 8
Reconnect, verify readings and close
Connect the battery connector (and the display flex cables if removed). Power on and check Battery Health in settings. If you use a self-diagnosing battery or an original Service Pack, the 'Not a genuine battery' warning will not appear. Close with new perimeter adhesive and reinstall the pentalobe screws.
💡 Tip: Aftermarket batteries with a generic BMS show the 'Important Battery Service' warning: to avoid this, use self-diagnosing cells (JCID/DEJI) or a BMS programmer (JC, MAGICO, AIXUN).
Frequently Asked Questions
How much does an iPhone 13 Pro B2B battery cost?
On InParts, prices start at around €20 (B2B). The DEJI/JCID upgraded 3300mAh self-diagnosing version avoids the warning and increases battery life.
Does the iPhone 13 battery fit the 13 Pro?
No: the two models have different capacities and shapes. You need the specific battery for the 13 Pro.
Do I need to recalibrate the battery after replacement?
With self-diagnosing cells or a Service Pack, the reading is immediate. With a generic BMS, you need a programmer to match the original data and avoid the warning.
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