Dewalt NiCad batteries

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Forum topic by MrRon posted 01-23-2013 10:26 PM 1295 views 0 times favorited 2 replies Add to Favorites Watch
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4800 posts in 3272 days

01-23-2013 10:26 PM

I have 18V Dewalt batteries with one contact that is corroded. The contact inside the drill is also corroded. I’ve tried scraping the corrosion off, but it is difficult to get a clean contact. When they are clean, they charge up fine, but when the contact gets corroded, the drill runs sporadically until it’s cleaned again. Does anyone have this problem and what do you do about it.

2 replies so far

View Loren's profile


10476 posts in 3676 days

#1 posted 01-23-2013 11:44 PM

Glue bits of 400 grit wet-dry paper to something like a
popsickle stick. You can sand the hard to reach contacts
that way. You can also square the end of the stick
and cut thin strips of sandpaper and hold them in place
on the stick, moving the strip as the different sections
of the abrasive wear down.

Pencil erasers also work.

View Belg1960's profile


1072 posts in 3094 days

#2 posted 01-24-2013 12:31 PM

Ron depending on how bad the corrosion is, there is an electric contact cleaning spray on the market. If it is really bad I would try a plastic gun cleaning brush, I say plastic as if there was any charge left in the battery you could arc (ever so small) across the two terminals.

-- ***Pat*** Rookie woodworker looking for an education!!!

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