Phone · Samsung · Galaxy S23 Ultra
Samsung Galaxy S23 Ultra Battery Replacement
Battery Replacement guide for the Samsung Galaxy S23 Ultra
Before you begin
Tools
- Precision Phillips #00 screwdriver
- Plastic opening picks
- Suction cup
- Plastic spudger
- Tweezers
- Heat gun or iOpener
- SIM eject tool
Parts / materials
- Replacement Galaxy S23 Ultra battery
- Battery adhesive strips
- Pre-cut back cover adhesive sticker
- 99% Isopropyl alcohol
Safety
- Discharge the phone battery below 25% prior to disassembly to minimize fire risk if punctured.
- Wear safety glasses to protect your eyes from fine glass shards during back cover removal.
- Use only non-conductive plastic tools near exposed circuit boards and battery terminals.
Overview
Step-by-step
- 1
Remove the SIM card tray
1 minInsert a SIM eject tool into the hole next to the tray at the bottom edge to pop it out. Pull the SIM card tray completely out of the frame.
- 2
Heat the back glass perimeter
3 minApply a heat gun or heated pad to the back glass edges for 2 to 3 minutes to soften the rear cover adhesive.
- 3
Attach a suction cup to the back cover
2 minPlace a suction cup on the lower third of the back glass. Pull upward firmly to create a small gap between the glass and frame.
- 4
Insert an opening pick into the seam
2 minInsert a thin plastic opening pick into the gap created at the bottom edge of the glass.
- 5
Slice the back cover adhesive
4 minSlide opening picks around all four edges of the back cover to cut through the perimeter adhesive. Reapply heat if the adhesive hardens.
- 6
Remove the rear glass cover
1 minLift the rear glass cover off the phone frame and place it on a clean surface.
- 7
Unscrew the wireless charging pad cover
4 minRemove the 13 Phillips #00 screws securing the wireless charging assembly and upper motherboard cover.
- 8
Disconnect the wireless charging coil
1 minUse a plastic spudger to disconnect the wireless charging coil press connector from the motherboard.
- 9
Peel off the wireless charging assembly
2 minGently peel the wireless charging coil and attached graphite sheet away from the battery and chassis.
- 10
Disconnect the battery press connector
1 minPry the battery connector straight up from its motherboard socket using a plastic spudger to cut power.
- 11
Unscrew the bottom loudspeaker module
3 minRemove the 6 Phillips #00 screws holding the loudspeaker enclosure at the bottom of the device.
- 12
Remove the loudspeaker module
2 minInsert a spudger beneath the loudspeaker edge and pry up to detach it from the phone frame.
- 13
Disconnect the main interconnect cables
2 minDisconnect the display and board-to-board interconnect flex cables that overlay the battery.
- 14
Apply adhesive remover around the battery
2 minApply a few drops of high-concentration isopropyl alcohol along the top and side edges of the battery compartment.
- 15
Pull the battery release tab
3 minGrasp the green battery pull tab firmly and pull upward with constant force to break the adhesive bond.
- 16
Remove the old battery
1 minLift the depleted battery out of the frame and set it aside for proper recycling.
- 17
Install the new battery
4 minPlace new adhesive strips into the bay, press the new battery firmly into place, and reconnect all internal components in reverse order.
After your Samsung Galaxy S23 Ultra battery replacement
Power the Galaxy S23 Ultra back on and test the battery replacement function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy S23 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Samsung Galaxy S23 Ultra repair context in the encyclopedia, or open related DIY guides.

