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Phone · LG · G4

LG G4 Battery Replacement

Battery Replacement guide for the LG G4

Moderate
~24 min
19 steps

Before you begin

Tools

  • Plastic opening pick
  • Plastic spudger
  • Cotton swab
  • Anti-static wrist strap

Parts / materials

  • Replacement LG G4 battery
  • 99% Isopropyl alcohol

Safety

  • Do not puncture, bend, or crush the lithium-ion battery.
  • Wear an anti-static wrist strap to avoid electrostatic discharge to internal components.
  • Work in a well-ventilated area away from open flames and heat sources.

Overview

# LG G4 Battery Replacement Repair Guide Action-specific battery replacement walkthrough for the LG G4. About 24 minutes across 19 steps. This DIY guide walks through battery replacement on the LG G4 (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 G4 specifically—not a similar G Series sibling. Most DIY techs finish this LG G4 battery replacement in about 24 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG G4 job: Plastic opening pick, Plastic spudger, Cotton swab, Anti-static wrist strap. Parts and supplies: Replacement LG G4 battery, 99% Isopropyl alcohol. Power the G4 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 G4, 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 device

    1 min

    Press and hold the power button on the back of the phone until the options menu appears. Tap 'Power off' and wait for the screen to go completely dark.

  2. 2

    Locate the rear cover notch

    1 min

    Find the small indentation on the bottom-left corner of the rear cover. This notch provides leverage to remove the back panel.

  3. 3

    Insert an opening pick

    1 min

    Insert a plastic opening pick or your thumbnail into the rear cover notch. Apply gentle upward pressure to create a small gap.

  4. 4

    Unclip the bottom edge

    1 min

    Slide the plastic opening pick across the bottom seam of the phone. You will hear plastic clips disengage.

  5. 5

    Unclip the left side

    1 min

    Continue sliding the pick upward along the left seam of the rear cover. Work slowly to avoid bending the plastic tabs.

  6. 6

    Unclip the right side

    1 min

    Move the pick to the right seam and slide it toward the top. Ensure all side retention clips are fully disengaged.

  7. 7

    Remove the rear cover

    1 min

    Grasp the freed bottom portion of the rear cover and lift it away from the frame. Set the back cover aside on a clean surface.

  8. 8

    Locate the battery notch

    1 min

    Identify the small recess at the bottom edge of the battery compartment. This slot allows access to pry out the battery.

  9. 9

    Pry the battery upward

    1 min

    Insert the flat end of a plastic spudger into the battery recess slot. Gently lever the battery upward out of its housing.

  10. 10

    Remove the old battery

    1 min

    Grasp the lifted bottom edge of the original battery with your fingers. Pull the battery completely out of the phone body.

  11. 11

    Inspect the battery compartment

    1 min

    Check the exposed housing for any dirt, dust, or physical damage. Ensure the battery bay is clean and obstruction-free.

  12. 12

    Clean the battery contacts

    1 min

    Dampen a cotton swab with isopropyl alcohol. Gently wipe the four gold pin contacts inside the battery compartment to remove residue.

  13. 13

    Align the new battery

    1 min

    Orient the replacement battery so its gold contacts face the phone's internal contact pins. Match the position marked in the battery well.

  14. 14

    Insert the top edge

    1 min

    Angle the top contact end of the new battery into the top of the compartment. Verify the metallic contacts rest against the terminal pins.

  15. 15

    Press the battery into place

    1 min

    Push the bottom edge of the battery down firmly into the recess. Verify that the battery sits completely flush in the housing.

  16. 16

    Align the rear cover

    1 min

    Place the rear cover onto the back of the phone. Align the camera cutouts with the rear camera module and power button cluster.

  17. 17

    Snap the cover closed

    1 min

    Press firmly around the outer perimeter of the back cover. Continue pressing until all plastic clips snap securely into place.

  18. 18

    Power on the phone

    2 min

    Press and hold the power button on the back cover until the LG logo appears. Allow the phone to complete its boot sequence.

  19. 19

    Calibrate the new battery

    5 min

    Charge the device uninterrupted to 100% before using. Discharge it completely to 0% before recharging to calibrate the power sensor.

After your LG G4 battery replacement

Power the G4 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 G4 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 G4 repair context in the encyclopedia, or open related DIY guides.

Repair encyclopediaAll G4 guides
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