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Phone · Samsung · Galaxy S23 Ultra

Samsung Galaxy S23 Ultra Battery Replacement

Battery Replacement guide for the Samsung Galaxy S23 Ultra

Moderate
~38 min
17 steps

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

# Samsung Galaxy S23 Ultra Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the Samsung Galaxy S23 Ultra. About 38 minutes across 17 steps. This DIY guide walks through battery replacement on the Samsung Galaxy S23 Ultra (Galaxy S series phone). Before you open the device, confirm the exact model number on the Samsung settings screen or rear housing so your replacement part matches the Galaxy S23 Ultra specifically—not a similar Galaxy S sibling. Most DIY techs finish this Samsung Galaxy S23 Ultra battery replacement in about 38 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this Samsung Galaxy S23 Ultra job: Precision Phillips #00 screwdriver, Plastic opening picks, Suction cup, Plastic spudger, Tweezers, Heat gun or iOpener, SIM eject tool. Parts and supplies: Replacement Galaxy S23 Ultra battery, Battery adhesive strips, Pre-cut back cover adhesive sticker, 99% Isopropyl alcohol. Power the Galaxy S23 Ultra off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your Samsung Galaxy S23 Ultra, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle battery replacement for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Remove the SIM card tray

    1 min

    Insert 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. 2

    Heat the back glass perimeter

    3 min

    Apply a heat gun or heated pad to the back glass edges for 2 to 3 minutes to soften the rear cover adhesive.

  3. 3

    Attach a suction cup to the back cover

    2 min

    Place 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. 4

    Insert an opening pick into the seam

    2 min

    Insert a thin plastic opening pick into the gap created at the bottom edge of the glass.

  5. 5

    Slice the back cover adhesive

    4 min

    Slide opening picks around all four edges of the back cover to cut through the perimeter adhesive. Reapply heat if the adhesive hardens.

  6. 6

    Remove the rear glass cover

    1 min

    Lift the rear glass cover off the phone frame and place it on a clean surface.

  7. 7

    Unscrew the wireless charging pad cover

    4 min

    Remove the 13 Phillips #00 screws securing the wireless charging assembly and upper motherboard cover.

  8. 8

    Disconnect the wireless charging coil

    1 min

    Use a plastic spudger to disconnect the wireless charging coil press connector from the motherboard.

  9. 9

    Peel off the wireless charging assembly

    2 min

    Gently peel the wireless charging coil and attached graphite sheet away from the battery and chassis.

  10. 10

    Disconnect the battery press connector

    1 min

    Pry the battery connector straight up from its motherboard socket using a plastic spudger to cut power.

  11. 11

    Unscrew the bottom loudspeaker module

    3 min

    Remove the 6 Phillips #00 screws holding the loudspeaker enclosure at the bottom of the device.

  12. 12

    Remove the loudspeaker module

    2 min

    Insert a spudger beneath the loudspeaker edge and pry up to detach it from the phone frame.

  13. 13

    Disconnect the main interconnect cables

    2 min

    Disconnect the display and board-to-board interconnect flex cables that overlay the battery.

  14. 14

    Apply adhesive remover around the battery

    2 min

    Apply a few drops of high-concentration isopropyl alcohol along the top and side edges of the battery compartment.

  15. 15

    Pull the battery release tab

    3 min

    Grasp the green battery pull tab firmly and pull upward with constant force to break the adhesive bond.

  16. 16

    Remove the old battery

    1 min

    Lift the depleted battery out of the frame and set it aside for proper recycling.

  17. 17

    Install the new battery

    4 min

    Place 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.

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