Phone · Samsung · Galaxy S3
Samsung Galaxy S3 Battery Replacement
Battery Replacement guide for the Samsung Galaxy S3
Before you begin
Tools
- Plastic opening tools
- Anti-static wrist strap
- Tweezers
- Cotton swabs
Parts / materials
- Replacement Samsung Galaxy S3 battery
- Isopropyl alcohol
Safety
- Power off the phone completely before removing the battery.
- Do not puncture, bend, or apply excessive force to the lithium-ion battery.
- Use an anti-static wrist strap to protect internal circuitry from static damage.
Overview
Step-by-step
- 1
Power Down the Device
1 minPress and hold the Power button on the right edge of the phone. Tap Power Off on the screen and wait for the device to completely shut down.
- 2
Attach Anti-Static Strap
1 minPut on your anti-static wrist strap and clip the cable to a grounded metal object. This prevents electrostatic discharge from damaging internal components.
- 3
Locate Rear Cover Notch
1 minTurn the phone face down on a soft surface. Locate the small indentation notch near the top edge next to the headphone jack.
- 4
Pry Off Back Cover
2 minInsert the edge of a plastic opening tool into the notch. Carefully twist the tool to detach the top clips of the plastic rear cover.
- 5
Release Perimeter Clips
2 minSlide the plastic opening tool around the outer seam of the rear cover. Unclip all plastic latches securing the cover to the body.
- 6
Remove Rear Cover
1 minLift the rear cover completely off the phone chassis. Place the cover aside on a clean work surface.
- 7
Locate Battery Recess
1 minIdentify the small pry slot located at the bottom edge of the battery well.
- 8
Lift Out Old Battery
1 minInsert your fingernail or a plastic opening tool into the battery recess. Pry the battery upward and lift it out of the housing.
- 9
Inspect Battery Compartment
2 minCheck the gold contact pins inside the battery bay for bent pins or debris. Use tweezers to carefully clear any stray dust.
- 10
Clean Contact Pins
2 minDampen a cotton swab with a drop of high-concentration isopropyl alcohol. Gently wipe the four golden spring contacts to ensure a clear electrical connection.
- 11
Insert New Battery
1 minAlign the gold contacts of your new Samsung Galaxy S3 battery with the pins in the compartment. Press the battery firmly down into the bay until it sits flat.
- 12
Align Rear Cover
1 minPlace the rear cover back onto the rear housing, aligning the camera cutout with the camera module.
- 13
Snap Rear Cover On
2 minPress firmly along all edges of the rear panel until you hear each plastic clip snap back into place.
- 14
Test Power Functionality
3 minPress and hold the Power button until the Samsung logo appears on screen. Connect a wall charger to verify that the phone charges properly.
After your Samsung Galaxy S3 battery replacement
Power the Galaxy S3 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 S3 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 S3 repair context in the encyclopedia, or open related DIY guides.
