JBL Flip 4 Battery Replacement
By Philip Pang • Difficulty: Moderate
Introduction

Has the battery life of your device become unusable? Does the battery seem to refuse to charge? A faulty battery is possibly the cause of these power issues. As the battery undergoes more cycles, it holds less charge.

Step 1
  • Insert the plastic opening tool in the crack in between the cover and the rubber spine with the power button.
  • Pry off the cover, beginning with the side without the volume and bluetooth buttons.
  • When prying the cover off, the six clips (three along each side of rubber spine) that attach the cover to the speaker will make snapping sounds.
  • Watch out not to damage the clips on the buttons' side, pry open with caution.
  • Pull the cover off with your thumbs.
Step 2
  • Remove four 13 mm JIS #0 screws attaching the rubber spine to the speaker, located on both sides of the inside of the speaker.
  • Use the plastic opening tool to release the clips holding the central part of the rubber spine.
  • Pry away one end of the rubber spine with your thumbs and it should come off.
  • Prying off the spine may take some persuading.
  • The speakers are strong magnets. Keep it away from other sensitive electronics.
remove cap
  • The end cap opposite to the USB port: Twist - or - remove screws from the cap. (depends on your model-version: only older version have 9mm Phillips #1 screws)
  • Pull the end cap off with your hands.
Step 4
  • Remove two 11mm Phillips #1 screws on the battery cover.
  • Pull the battery cover off with your hands.
Step 5
  • Remove the large white plug that connects the wires from the battery to the main board using your hands.
  • Pull the battery out with your hands.
  • If the battery is swollen, you might not be able to pull it out with your hands, you might just rip the cables+charging board out.
  • In this case: You can pushing out the Battery, which we documented in an extra guide.
  • A short preview: You can remove the other radiator, unscrew the charging port and gently pull it out just a bit so a pencil (flat end) can fit in and push out the battery from this side.
  • The port might be hot glued and under the tapes there are very small normal and ribbon cables, so be careful not to cut or rip them.
  • More details and pictures in the separated extra guide.
Conclusion

To reassemble your device, follow these instructions in reverse order.