On Thu, 20 Mar 2014 10:24:18 -0700, "William Sommerwerck"
wrote:

"OldGuy" wrote in message ...

Duracell is just as bad as any other.
Expensive Mamiya camera motor drive corroded, flashlight ruined, Nikon flash
corroded, etc (as they say much much more) ...
Also true for 9V duracells. They all leak! corrode!
Impossible to clean!
I had to grind off corrosion with a diamond tip rotary tool where I
could get at it. The flashlight was a total loss since I could not get
the batteries out!
no solvent worked!
Tried CLR, straight white vinegar, etc.

I've been using alkaline batteries for decades (including nicads and NiMHs,
which are also alkaline), and have not had these sorts of problems. Yes, I
have had leakage. But it's been uncommon, and in only one case was the contact
badly damaged.

I have a Sony TFM-117WB with four Duracell C cells in it. They've been there
over a year. I checked them the other day, and they were fine.

I have never seen a 9V battery, of any chemistry, from any manufacturer, leak.

Duracell used to guarantee that their cells wouldn't leak, and would replace
or repaire damaged products. In one case, a dictating machine was cosmetically
damaged by leakage, and Duracell made good on the guarantee.


I have had both Energiser and Duracell 9 volt batteries leak. Inside
there are multiple cells thinner than a AAA battery. Usually the
liquid oozes up through the terminals which destroys the battery plug.