In article ,
Dave Plowman (News) wrote:

But it's not like they need charging every day. If they do, and it's
convenient to use the shaver socket to charge them because that's where
you use them, why not just get the mains version and save a load of money?

Do mains electric toothbrushes exist? Even mains shavers are pretty
rare now, and only the bottom-end models.

-- Richard