Oral B Triumph Battery replacement Video

Well finally  got round to doing a video on how to replace a battery in an Oral B electric toothbrush.

I have now changed the videos to include the correct way to unscrew and screw the back using the power adaptor . Thanks for your comments.

Straight forward when you know how to do it. I have only posted a video on youtube as a full blog post would be too long.

Using a   “4/5 A”   battery that I bought from http://www.component-shop.co.uk/ Which I think means it’s 4/5 the size of an “A” battery


Another good battery choice is the Panasonic 1.2V NiMH Tagged 4/5A 2040mAh from RS




You can check your battery against the chart in link  http://www.powerstream.com/Size.htm This way you will order the correct one.

Some people in the USA have an “A” size battery which is 17mm diameter 50mm long..

Check first to make sure your battery is a 4/5 A , before you order , as not all models are the same. A “4/5 A” battery is 43mm long x 17mm

It can happen that the display will start cycling through the segments . It seems to be a test mode you can get in and out of this mode by pressing the smaller of the two buttons. The one that changes the speed..

Also note that when removing the internals be careful with the coil at the top as this is very fragile as the wires are very thin and can easily break.

Check out the video here.

Part 1

Part 2


Many thanks to Mr. T (Tony) (see comments) who is a star and has been testing batteries for his Oral B. His conclusion is a good replacement battery is a Vapex  1.2V 2000mAh NiMH 4/5A Single Cell from http://www.componentshop.co.uk .

Another choice for a higher rated battery could also be larger Vapex VP2200 A size but until I try a fit this battery I can’t confirm an A size battery will fit.


A Strong Word of Caution
I followed the two good videos for the replacement of the battery on my Braun toothbrush and all proceeded according to plan (apart from a little damage to the hard-to-remove blue ring) until I reached the stage of reinserting the retaining battery/motor spring.  The procedure, by the way, of soldering on to the shortened battery terminals, rather than directly on to the circuit board as described in some other videos is a sensible one and lessens the chance for damage to the circuit board.
However while I was putting the spring back in, the coil dug into the the insulation surrounding the battery, causing a short circuit and almost instantaneous heating up of the spring & battery – things got very hot, very quickly! After getting over my  initial shock I rescued the situation by:
1) replacing the spring by a piece of strong plastic cut from a 13 amp 3 pin plastic plug protector (see photo)
2) re insulating the battery by applying 2 separate coats of Araldite to the damaged areas
In my opinion the replacement of the spring by this plastic spacer is a safer solution than trying to reinsert the spring.  The replacement battery I used was a Panasonic NiMH 4/5A HHR-200A-1Z from RS Components. (http://uk.rs-online.com/web/p/speciality-size-rechargeable-batteries/0231011/). This is a 2040mAh rechargeable replacement and costs £7. Despite this potential damage to the battery, charging and operation of the motor seem to be OK so far.
I think that this safety warning is important as it makes one realise that accidents can easily happen and that the insulation surrounding these batteries is not very robust.




Your comments are welcome…