DIYbanter - View Single Post

wrote:
Ian Stirling wrote:
wrote:
"Paul \( Skiing8 \)" wrote:
"r.p.mcmurphy" wrote in message
...
i have an aging sonicare toothbrush with a slowly failing battery. i
understand there supposed to be non replaceable...but im gonna try anyway!
has any one on here had a go at doing this? im loathed to go out and buy
a
new one....cus its one gadget i wouldn't be without...but there expensive
to
replace just cus it needs a new battery.

They are probably non-replaceable because the case is sealed for
waterproofness..... and that could make it hard to get into.
Also when you replace the batteries it will be hard to seal it back up.

Waterproofness hardly matters for something that has just one or two
NiCd cells in it. Battery torches and toys work quite happily
underwater in my experience.

For a few minutes.
They will fail if left wet for days, as would be the case for trapped
moisture.

... but a toothbrush will probably dry out if stood up on normal
fashion on the charger. Why will it fail if wet anyway? A toy might
well fail because of corroision or whatever but I doubt if there's
anything much to corrode in an electric toothbrush.

Failing all else - the batteries.
Also, the circuitry, ...

If water gets into fairly-well (but not perfectly) sealed things, it does not
tend to come out.