Expert in changing phone batteries, let's try with an electric toothbrush
Having lovingly used my electric toothbrushfor at least 4 years, changing the brush heads is commonplace; however I've never changed the battery.
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Significant decrease in power
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 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 Braun Oral B toothbrush 3756 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.
How To Change The Battery in Your Braun Oral-B Toothbrush 3756
Removing the plastic ring from the body
Remove the base battery cover
Years of use can be seen here!
The new battery and the base removed
The inner workings exposed
Desoldering the charging coil
Desoldering and removal of the old battery
The new battery is installed and the charging coil is attached
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.
For the original tutorial, please visit this website.
You can book any battery changes on your smartphone by contacting us or booking online.