Oral-B iO Battery Replacement
By Dominik Schnabelrauch • Difficulty: Easy

Use this guide to replace a worn-out or dead battery in your Oral-B iO.

If your battery is swollen, take appropriate precautions. For your safety, discharge your battery below 25% before disassembling your toothbrush. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.

You’ll need the charging station of the Oral-B iO during the battery removal procedure.

Unfasten bottom cap
  • Before you start, disconnect the charging station from the power socket.
  • Flip the charging station of your OralB iO upside down.
  • Align the three recesses on the iO's silver bottom cap with the notches at the bottom of the charging station.
  • Push the toothbrush into the charging station with mild pressure and turn it about 90° counter clockwise to unlock the thread of the bottom cap.
Bottom cap removal
  • Unscrew the bottom cap of your toothbrush.
  • Remove the bottom cap.
Remove toothbrush assembly
  • Remove the brush head from your toothbrush.
  • Hold the toothbrush body in one hand and use your thumb to press down the top of the toothbrush assembly.
  • Pull the toothbrush assembly out of the opening at the bottom end of the toothbrush body.
Battery removal
  • Do not use excessive force or pry at the battery with metal tools.
  • Pull the battery out of its recess on the bottom of the toothbrush assembly.
  • In case the battery sits to tight in its recess, you can use a plastic tool like a spudger to pry the battery out of its recess.
  • Remove the battery.
  • Do not reinstall a damaged or deformed battery, as doing so is a potential safety hazard.

If possible, turn on your toothbrush and test your repair before resealing.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.