Difficulty

Difficult

Steps

7

Time Required

                          45 minutes

Sections

1

  • Battery
  • 7 steps

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Introduction

What you need

Step 1

              Battery
  • Pull off head, and use pliers to remove the white cap. Pull out the circuit core.

Pull off head, and use pliers to remove the white cap. Pull out the circuit core.

1024

Step 2

  • De-solder in these four (4) locations.
  • The two (2) motor connections
  • The Positive (+) side of the battery
  • The Negative (-) side of the battery

De-solder in these four (4) locations.

The two (2) motor connections

The Positive (+) side of the battery

The Negative (-) side of the battery

Step 3

  • De-Solder lower battery connection terminal. Bend back battery terminal to clear circuit board.

De-Solder lower battery connection terminal. Bend back battery terminal to clear circuit board.

Step 4

  • De-Solder the three (3) upper terminals from the circuit board.

De-Solder the three (3) upper terminals from the circuit board.

Step 5

  • Use plastic prying tools to carefully pry off the circuit board. (Utilize metal spedger as a last resort)
  • There is a white tab that goes through the board, be careful when removing the circuit board.

Use plastic prying tools to carefully pry off the circuit board. (Utilize metal spedger as a last resort)

There is a white tab that goes through the board, be careful when removing the circuit board.

Step 6

  • Pull the circuit board and battery assembly out. Then proceed to remove the battery from the circuit board

Pull the circuit board and battery assembly out. Then proceed to remove the battery from the circuit board

Step 7

  • When re-installing battery, remember to bend down lower terminal. And the negative (-) terminal is closest to the copper wires
  • Ensure you recharge the toothbrush after the repair. Even if the replacement battery is already fully charged, the toothbrush will fail to power on if you don’t recharge the toothbrush.

When re-installing battery, remember to bend down lower terminal. And the negative (-) terminal is closest to the copper wires

Ensure you recharge the toothbrush after the repair. Even if the replacement battery is already fully charged, the toothbrush will fail to power on if you don’t recharge the toothbrush.

To reassemble your device, follow these instructions in reverse order. Remember to apply just enough solder to re-attach the terminals.

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                                                                                      11 other people completed this guide.

Author

                                      with 6 other contributors 


                    Miles Gunty

Member since: 11/07/2017

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Team

                       IUPUI, Team S2-G1, Harley Fall 2017                        

                                                  Member of IUPUI, Team S2-G1, Harley Fall 2017 



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                                            8 Guides authored

Ian Bowker - Mar 1, 2018

Reply

This is very easy to do. I had no problems following your instructions.

Stephen Shaw - Jan 6, 2021

Reply

Thanks.

Is this a regular rechargeable AA?

Thanks again.

T C - Mar 26, 2022

The original battery is a NiCd with tabs. I just spot welded tabs onto a standard AA NiMH battery and it worked fine.

anthonyscov - Sep 15, 2021

Reply

@stephen Shaw These batteries worked for me: https://www.amazon.com/dp/B00CR0R8KQ/ref…

Peter M. - Jun 15, 2022

Reply

I did fix an Oral B Braun PRO timer (2022) and the only part that is different is the head. It has two nail presses inside, one at the switch side and the other at the opposite side, that are very difficult to lose.