how to change battery in oral b toothbrush

It’s no secret: An electric toothbrush is a very convenient device to use during your oral care routine. However, after some time the battery may need to be replaced. This may be because it’s exhausted its battery life or it’s simply faulty.

How to Change the Battery

Does this mean you have to take it in for a battery replacement? It’s a relatively simple task—yes DIY easy. Just follow these seven simple steps:

  • Unscrew the bottom part of your Oral B Toothbrush. This is done by turning it counter clockwise. However note: A bit of force might be necessary to break the seal but too much will crack the plastic casing, so be careful.
  • Pull the cover off carefully to expose the battery.
  • Bend the metal contact away from the battery to remove it from the casing. Make sure you take note of the original position of the battery you’re removing so you can replace it in an exact manner.
  • Insert the new battery.
  • Re-bend the contact into place. Make sure you don’t over bend it. This might break the contact rendering the toothbrush useless.
  • Replace the bottom part you removed in step one to cover the battery.
  • Twist it in a clockwise direction until the handle is completely screwed on.

READ MORE: Recommended Oral-B 1000 Electric Toothbrush.

Battery Operated vs Rechargeable Electric Toothbrush

Of course, Oral B has a few unique devices, and not all work exactly the same. Therefore, there are different batteries for different Oral B Toothbrushes. First off there’s a battery-powered toothbrush mentioned above, which features built-in AA batteries. Secondly, you may opt for the rechargeable electric toothbrush. With this type, you need to plug it into the wall to recharge.

This brings us to the next question.

Is There a Difference in the Battery Replacement Processes?

There’s a slight difference in their battery replacement process. The rechargeable toothbrushes are more complicated because of more advanced components.

It basically involves:

  • Pulling out the circuit core
  • De-solder the battery connection terminal
  • Bend back battery terminal to clear circuit board
  • De-solder the three upper terminals from the circuit board
  • Use prying tools to pry off the circuit board
  • Pull out the circuit board and battery
  • Remove the old battery
  • Re-install the new battery


Now you’re prepared no matter which one you have in your bathroom. If you have more questions, do not hesitate to comment below.

Author: Peter Mayhew

Peter is a dental hygienist in the city of Chicago, IL. In his free time he likes to write blogs and product reviews on anything dental health related.