Difficulty

Difficult

Steps

7

Time Required

                          15 - 30 minutes

Sections

1

  • Battery
  • 7 steps

Flags

2

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Introduction

This guide requires soldering so if you’re not familiar or would like more information, check out this article on the site.

What you need

Step 1

              Head removal
  • Remove the toothbrush head.
  • Use a screwdriver to pry gently around the bottom of the toothbrush.

Remove the toothbrush head.

Use a screwdriver to pry gently around the bottom of the toothbrush.

1024

Step 2

              Remove the bottom
  • After the bottom of the toothbrush is pried loose, remove it from the base of the brush.

After the bottom of the toothbrush is pried loose, remove it from the base of the brush.

Step 3

  • Use a spudger to open the two clasps inside the toothbrush handle in a downward motion.
  • Turn the toothbrush upside down and push down on a hard surface—this will slide the toothbrush’s internal body out.

Use a spudger to open the two clasps inside the toothbrush handle in a downward motion.

Turn the toothbrush upside down and push down on a hard surface—this will slide the toothbrush’s internal body out.

Step 4

              Extract the internals
  • Pull out the internals of the toothbrush.

Pull out the internals of the toothbrush.

Step 5

              Access the battery
  • Open the protective cover of the battery.
  • Check the battery model.
  • In this case, the model is a Sony 680mhA lithium battery.

Open the protective cover of the battery.

Check the battery model.

In this case, the model is a Sony 680mhA lithium battery.

Step 6

              Desolder both terminals
  • Open the protection cover of the circuit board.
  • Find the welding points of the positive and negative electrodes of the battery and use the soldering iron to desolder.
  • The battery will fall off after desoldering as shown in the figure.
  • Be careful not to touch other parts of the circuit board when desoldering.

Open the protection cover of the circuit board.

Find the welding points of the positive and negative electrodes of the battery and use the soldering iron to desolder.

The battery will fall off after desoldering as shown in the figure.

Be careful not to touch other parts of the circuit board when desoldering.

Step 7

              Install a new battery
  • Use a spudger to pry the battery out at a 45 degree angle.
  • After successfully removing the battery, install the new battery using the reverse procedure.
  • Always use ESD safe tools when working on a circuit board or with batteries such as a nylon spudger.

Use a spudger to pry the battery out at a 45 degree angle.

After successfully removing the battery, install the new battery using the reverse procedure.

Always use ESD safe tools when working on a circuit board or with batteries such as a nylon spudger.

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

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Author

                                      with 3 other contributors 


                    Dongyi Lin

Member since: 05/10/2021

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Team

                       York University, Team S1-G16, O'Regan Summer 2021                        

                                                  Member of York University, Team S1-G16, O'Regan Summer 2021 



                    YORK-O'REGAN-SU21S1G16                     


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