By Andrew Optimus Goldheart • Difficulty: Difficult
Got a dead or swollen battery in your Apple Watch? Use this guide to replace it.
Note: If your battery is swollen, take appropriate precautions.
- Before starting repairs, take your watch off the charger and power it down.
- Prepare an iOpener (or grab a hair dryer or heat gun) and heat the face of the watch until it's slightly too hot to touch.
- Leave the iOpener on the watch for at least a minute to fully heat the screen and soften the adhesive holding it to the case.
- Place the curved section of the blade in the gap between the glass and case on the lower edge of the watch face, and press firmly straight down into the gap.
- When the glass has lifted, gently rotate the knife down, opening the gap more by pushing the glass up.
- Once you've opened the gap enough, insert the tip of an opening pick under the glass.
- Slide the pick along the bottom edge to separate adhesive holding the screen to the case.
- Roll the opening pick up the side of the button side of the watch, gently pushing in to separate the adhesive and widening the gap as you go.
- Work the pick around the top right corner, and roll it along the top edge of the screen.
- Continue working the pick around the perimeter of the screen, rolling down along the left side to cut the last of the adhesive.
- While holding the first pick in place, use a second to check that all of the adhesive is separated around the entire perimeter of the screen.
- Pry slightly up on the right side of the screen, to free it from any remaining adhesive.
- Pry up on the left to free it as well—but do not attempt to remove the screen as it is still held in place by two cables.
- The top layer of the sensor may be adhered to the back of the screen—if so, push it back down and separate it.
- Lift the screen up and shift it to the left, minding the display data and digitizer cables.
- Place the watch on an elevated surface, at least 1/2" or 1 cm tall—a small box or the edge of a book will work great. This will allow the screen to hang down vertically and give better access to the battery.
- Use scissors to cut one of your opening picks to about the width of the battery. Try not to leave any sharp corners.
- Insert the modified pick between the right side of the battery and the case.
- Use constant, steady pressure to slowly pry the battery up, separating it from the adhesive securing it to the system board.
- On the larger (42 mm) models, it's possible to accidentally pry at the system board underneath the battery. Insert the pick only far enough to get underneath the battery, not the system board.
- If needed, apply a little high concentration isopropyl alcohol (90% or greater) around and under the battery to help weaken the adhesive.
- Rotate the battery counterclockwise to expose its connector.
- Hold the battery up and out of the way, to expose the battery cable connector.
- Use a plastic opening tool, prying against the bottom of the case to separate the battery cable connector from the watch's battery cable.
- Remove the battery from the watch.
Continue from Step 17 of the Force Touch Sensor guide to re-seal your watch and complete your repair.