David Farber wrote in message
...

"William Sommerwerck" wrote in message
news
The Braun's I've had don't seem to be designed for battery replacement.

Some of the charger stands have pins and flanges for the purpose of
ripping
open the toothbrush to remove the cells for recharging. Whether you can
successfully reassemble the brush is another matter. I've never tried.



I upped the force I used to pop open the bottom and was able to remove the
case. I didn't realize that a 45 degree counterclockwise twist of the
bottom
plate allowed the internal "hooks" to have a clear exiting path. You still
have to pry a screwdriver in there to nudge it out. Inside, there was
quite
a bit of moisture. You could actually see water puddling up in some places
on the PC board. The picture tells all:

http://www.pbase.com/image/89369067

Time for a new toothbrush.

--
David Farber
David Farber's Service Center
L.A., CA



For anyone wanting to make their electric toothbrush survive longer.
Fix the charger unit to the underside of a shelf and make some sort of
carrier or sprung/elastic plus clip, for the motor unit to be held
vertically upside down under the charger "base".
Goo will always find its way past what may initially be a seal around the
rotating shaft down into the works, unless you park it upside down. The
makers want to sell more units.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/