Braun Oral-B Professional Care Type 3756 Battery Replacement

Braun Oral-B Professional Care Type 3756 Battery

braun professional care - type 3756 - a

Having lovingly used my electric toothbrush (twice a day) for at least 4 years, changing the brush heads is commonplace  however I've never changed the battery. After 2 years I noticed the power of the toothbrush dropped off after the first 3/4 brushes. Initially my toothbrush lasted 1 week on a full charge it was giving me 6 full brushes (3 minutes per session), which didn't last me a weekend away.

I looked around for the model and where I could get a replacement battery. Having looked through a few tutorials I knew (hoped) I had the skill set to pull this off, at least brush up on my soldering.

The model toothbrush I have is the [Braun professional II], with model "Type 3756" found at the base of the unit. This electronic toothbrush isn't really designed to be repaired so don't think you can just bust this bad boy open and swap out the AA battery. This battery is specialised and soldered into the toothbrush.

braun professional care - type 3756 - b

Removing the plastic ring from the body

braun professional care - type 3756 - c

Remove the base battery cover

braun professional care - type 3756 - d

Years of use can be seen here!

braun professional care - type 3756 - e

The new battery and the base removed

braun professional care - type 3756 - e

The inner workings exposed

braun professional care - type 3756 - g

Desoldering the charging coil

braun professional care - type 3756 - h

Desoldering and removal of the old battery

braun professional care - type 3756 - i

The new battery is installed and the charging coil is attached

braun professional care - type 3756 - j

Battery is working and now needs a good overnight charge

I decided to go with the 1400mAh capacity battery so now my battery should run for longer before it needs a recharge.

The original tutorial can be found here.



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