Adrian, if you are still around could you please let everyone know where and how you split the toothbrush successfully?
Rob D, June 2017
Yes you can, I have done 3 recently, the secret is to know where to split the unit, I had to scrap 2 off to work this out.
The batteries consist of 4 small cells joined together which I bought in ready made up.
Adrian, March 2016
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I can answer this question...
can i replace the battery in ultrasonex phaser toothbrush?