Ultimate Repair Hub · DIY Guide
iPhone 15 Battery Replacement
The iPhone 15 battery comes out through the back and is held by two stretch-release adhesive strips.
- Difficulty
- ●●●○○Moderate
- Time
- 45–60 min
- Steps
- 11
- Opens from
- Back glass
DIY guide — for informational purposes only. This is not a substitute for professional diagnosis, and repairs are performed at your own risk. Ultimate Wireless Solutions is an independent repair provider and is not affiliated with Apple Inc.
Tools
- Pentalobe screwdriver P2
- Tri-point screwdriver Y000
- Heat pad, iOpener or heat gun on low
- Suction cup and thin plastic opening picks
- Blunt tweezers (for the adhesive strips)
- Nylon spudger and ESD-safe tweezers
- Isopropyl alcohol (90%+) and lint-free wipes
- Clamps or a screen press
- Safety glasses, and a metal can of sand for the old battery
Parts
- iPhone 15 replacement battery (adhesive included)
Open the back
Power off and remove the bottom screws
Back up and power the phone off. Remove the two P2 pentalobe screws on either side of the USB-C port. Tape over cracked glass first so it doesn’t flake and the suction cup can grip.
Power off and remove the bottom screws1 photo · Tap image to enlarge Soften the adhesive
Warm the edges of the back glass evenly for 2–3 minutes. The glass should feel hot but still comfortable to hold.
Soften the adhesive1 photo · Tap image to enlarge Cut the back glass adhesive
Lift near the bottom edge with a suction cup and cut along both long sides and the top until the glass is free. Slide the glass slightly toward the bottom of the phone to release the top clips. Don’t lift the bottom edge more than about 5°.
Cut both long sides first, then slide the glass down slightly and cut the top. Open the back glass like a book
The back glass stays attached by a cable along one long edge, and that edge acts as the hinge. Lift the free edge and open it like a book. Support it, and cover the camera lenses to keep dust off.
Open the back glass like a book1 photo · Tap image to enlarge Disconnect the battery first
Remove the 3 tri-point screws from the two connector covers. Unhook the lower cover by pushing it slightly toward the top of the phone, tilting it up and sliding it out toward the Taptic Engine. Release the upper cover by pressing its top edge about 1 mm toward the bottom of the phone, then lift it out from the bottom.
Unplug the battery cable first, then the back glass cable.
Disconnect the battery first3 photos · Tap image to enlarge
Remove the battery
Pull the two adhesive strips
There are two stretch-release strips under the battery. Peel the first tab off the battery with blunt tweezers without scraping the cell, wrap it around the tweezers and lift about an inch until white adhesive shows.
Keep the tweezers low and parallel to the battery and pull toward the top of the phone, twisting as you go, until the whole strip slides out. Repeat for the second strip. Don’t drag the strips across screws or parts.
Pull the two adhesive strips3 photos · Tap image to enlarge If a strip snaps
Grab a visible broken end and keep twisting. If it’s out of reach, slide the flat end of a spudger only under a spot where the strip already came out and lift gently. Never bend or pry the battery; if it won’t come free, stop and bring it to a shop.
If a strip snaps1 photo · Tap image to enlarge Lift the battery out
Lift the battery from the frame and put it straight into a metal can of sand.
Lift the battery out1 photo · Tap image to enlarge
Install and close
Clean the bay and seat the new battery
Wipe leftover adhesive from the bay with alcohol and check for loose screws. Apply the new battery’s adhesive, line it up with the logic board and bottom speaker, and press it down firmly across the whole cell.
Clean the bay and seat the new battery4 photos · Tap image to enlarge Reconnect and close
Connect the back glass cable first, then the battery cable. Refit the upper and lower covers and their 3 tri-point screws, lay fresh back glass adhesive, close and clamp the glass, and reinstall the bottom screws.
Reconnect and close5 photos · Tap image to enlarge Test and finish
Shake gently; nothing should rattle. Charge for a few minutes before powering on. An aftermarket battery shows as an unknown part under Settings › General › About › Parts & Service History; that’s expected.
Want it done in 30 minutes?
Bring your iPhone 15 to our Tustin store. We handle the disposal and the seal for you.
Facts checked against Apple’s iPhone 15 repair manual. These guides are for informational purposes and repairs are done at your own risk. Ultimate Wireless Solutions is an independent repair shop and is not affiliated with Apple Inc.