Iphone 15 Plus Battery Replacement

iPhone 15 Plus Battery Replacement

Source: https://www.ifixit.com/Guide/iPhone+15+Plus+Battery+Replacement/166864
Category: Repairs
Type: External SOP

Summary

Replace a degraded iPhone 15 Plus battery that no longer holds adequate charge or has reached 80% capacity after 1000+ cycles. This procedure requires a replacement battery, back glass adhesive, and specific tools. Batteries below 25% charge are safer to work with.

Procedure

  1. Prepare for disassembly
    – Drain battery below 25%
    – Power off phone completely
    – Unplug all cables

  2. Protect cracked glass
    – Apply overlapping packing tape over any cracks
    – Ensure smooth area at bottom edge for suction cup

  3. Mark opening picks
    – Mark 3 mm from tip with permanent marker to prevent over-insertion damage
    – Alternatively, tape a coin 3 mm from tip

  4. Remove pentalobe screws
    – Use P2 pentalobe driver
    – Remove two 7.7 mm screws on either side of charging port

  5. Remove back glass
    – Heat bottom edge until hot to touch (hair dryer or heat gun)
    – Apply suction handle to bottom edge and pull steadily
    – Insert opening pick into gap
    – Separate adhesive along bottom (max 5 mm insertion depth)
    – Heat right edge and separate (max 7 mm depth)
    – Heat left edge and separate (max 5 mm depth)
    – Heat top edge and separate (max 3 mm depth)
    – Heat top right corner and separate (max 4 mm depth)
    – Gently swing back glass open to the right
    – Rest against raised surface to avoid cable strain

  6. Disconnect battery press connector
    – Remove lower connector cover screws (two 1.3 mm screws, Y000 driver)
    – Slide cover toward top to unlatch
    – Rotate back glass upright and tilt bottom left
    – Pry up and disconnect battery press connector with opening pick

  7. Remove middle connector cover
    – Remove 0.9 mm screw with Y000 driver
    – Push cover toward bottom and unclip top edge

  8. Replace battery
    – Remove old battery
    – Install replacement battery
    – Reconnect battery press connector (align and press both sides until clicks)

  9. Reassemble
    – Reinstall connector covers and all screws in reverse order
    – Apply new back glass adhesive
    – Reattach back glass
    – Reinstall pentalobe screws

Notes

  • Cable location: Delicate cable near volume up button—do not insert pick there
  • Spring contacts: Multiple spring contacts around perimeter—do not exceed suggested insertion depths
  • Parts pairing: iOS 17.6 and earlier may show warnings about replacement parts; iOS 18+ supports calibration via Repair Assistant
  • Swollen batteries: Take appropriate precautions if battery is swollen
  • Screw tracking: Keep all screws organized and return to exact original positions
  • Press connector reconnection: Align over socket and press gently on one side until click, then other side; ensure it sits flat
  • Heat caution: Do not overheat—battery is susceptible to heat damage