"Toller" wrote in
:


"Jeff Wisnia" wrote in message
. ..
Toller wrote:
I have a Dewalt 18v battery that came with a tool at an auction.
If I put it partly in my drill it works fine, but putting it in all
the way breakes the connection. Sometimes if I wiggle it around it
will work briefly all the way in.
It works that way in 3 tools, and a new battery works normally; so
it is the battery.

I have put contact cleaner on it, scratched it up with a file, and
tried bending the contacts in an out; but nothing helps. The blades
look pretty much like the ones on the good battery, so I can't
imagine why it isn't making contact. Any suggestions?

Sounds like a "loose disconnection" inside the pack.

If you can figger out how to pen it you should be able to easily find
where that is and repair it with solder or even conductive epoxy.

Yes, that is exactly what it is, right at the top so it is pushed
together when partly in, but separated when in all the way.
My soldering iron isn't up to the job. What is conductive epoxy?




Epoxy with copper or silver fillers.

Don't waste your time with it;its too resistive for the high currents in
this application.Solder it or get it re-spotwelded.

Now,ordinary epoxy WOULD be useful for building up a worn part of the
plastic casing.

--
Jim Yanik
jyanik
at
kua.net