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Phone · LG · G2

LG G2 Battery Replacement

Battery Replacement guide for the LG G2

Moderate
~37 min
20 steps

Before you begin

Tools

  • Phillips #00 precision screwdriver
  • Plastic opening tools
  • Spudger
  • SIM eject tool
  • Tweezers
  • Anti-static wrist strap

Parts / materials

  • LG G2 replacement battery
  • Pre-cut battery adhesive strips
  • Isopropyl alcohol (90%+)
  • Lint-free cloth

Safety

  • Wear eye protection when handling liquid adhesive removers and prying mechanical components.
  • Do not puncture, bend, or apply direct heat to the lithium-ion battery.
  • Always disconnect the battery press connector before touching internal electronic parts.

Overview

# LG G2 Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the LG G2. About 37 minutes across 20 steps. This DIY guide walks through battery replacement on the LG G2 (G Series series phone). Before you open the device, confirm the exact model number on the LG settings screen or rear housing so your replacement part matches the G2 specifically—not a similar G Series sibling. Most DIY techs finish this LG G2 battery replacement in about 37 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG G2 job: Phillips #00 precision screwdriver, Plastic opening tools, Spudger, SIM eject tool, Tweezers, Anti-static wrist strap. Parts and supplies: LG G2 replacement battery, Pre-cut battery adhesive strips, Isopropyl alcohol (90%+), Lint-free cloth. Power the G2 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 LG G2, 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

    Power off the phone

    1 min

    Press and hold the rear power button, then select 'Power off' on the touchscreen to turn off the device completely.

  2. 2

    Eject the SIM card tray

    1 min

    Insert a SIM eject tool or thin paperclip into the hole next to the SIM tray on the left edge of the frame.

  3. 3

    Remove the SIM tray

    1 min

    Pull the SIM tray completely out of the phone frame and set it aside.

  4. 4

    Insert the opening tool into the back cover seam

    2 min

    Pry a plastic opening tool into the seam between the glass screen assembly and the back panel near the SIM slot.

  5. 5

    Unclip the back cover perimeter

    3 min

    Slide the plastic opening tool along all four edges of the phone to disengage the plastic retention clips.

  6. 6

    Remove the rear cover

    1 min

    Lift the rear panel straight up and off the chassis once all perimeter clips are released.

  7. 7

    Unscrew the motherboard shield

    3 min

    Use a Phillips #00 screwdriver to remove the ten screws securing the upper motherboard protective cover.

  8. 8

    Remove the motherboard shield

    2 min

    Pry up the edges of the plastic motherboard shield with a spudger and remove it from the device.

  9. 9

    Disconnect the battery flex cable

    1 min

    Use the flat end of a plastic spudger to pry the battery press connector straight up from its motherboard socket.

  10. 10

    Apply adhesive remover around the battery

    2 min

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

  11. 11

    Pry up the old battery

    4 min

    Insert a flat plastic opening tool beneath the bottom edge of the battery and gently lever it upward.

  12. 12

    Remove the battery

    1 min

    Lift the old battery out of the housing once the adhesive releases.

  13. 13

    Clean the battery recess

    2 min

    Wipe the internal battery compartment with isopropyl alcohol and a lint-free cloth to clear remaining adhesive residue.

  14. 14

    Apply new battery adhesive

    2 min

    Place new pre-cut adhesive strips into the battery bay and peel off the protective backing film.

  15. 15

    Install the replacement battery

    2 min

    Align the new battery into the housing and press down firmly across its surface for ten seconds.

  16. 16

    Reconnect the battery cable

    1 min

    Align the battery flex connector over its motherboard socket and press down gently until it snaps into place.

  17. 17

    Reattach the motherboard shield

    2 min

    Place the upper motherboard shield back into position, aligning all screw holes with the frame.

  18. 18

    Secure the motherboard shield screws

    3 min

    Reinstall and tighten the ten Phillips #00 screws to fix the motherboard shield to the frame.

  19. 19

    Snap the rear panel into place

    2 min

    Position the rear cover over the back of the phone and press around the perimeter until all clips snap shut.

  20. 20

    Reinsert the SIM tray

    1 min

    Push the SIM card tray back into its slot until it sits flush against the outer side wall.

After your LG G2 battery replacement

Power the G2 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 LG G2 job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more LG G2 repair context in the encyclopedia, or open related DIY guides.

Repair encyclopediaAll G2 guides
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