[ARC5] Batteries That Do Not Corrode

[Bill Cromwell]

Hi,

I have found that the chemistry can eat the plating off from the 
underlying metal. Going to the trouble of removing the contacts, 
'cleaning' them, and then putting them back is futile. If that plating 
is gone or perforated the remaining material will oxidize and fail very 
soon. I have sometimes replaced the contacts with good contacts 
harvested from other sources. I had some luck fabricating new contacts 
and they lasted a little longer than just cleaning the contacts with the 
plating stripped away. More attention to plating might have made the 
homebrewed contacts last a little longer. I have not done any plating 
since my early 20s and not very much of it in my lifetime to date. Some 
of the chemistry can be lethal! I don't know what LPS-1 is.

Wire brushing and sanding are both abrasive and will remove some of the 
aforementioned plating. Usually if it is so bad that plating is gone 
some of the adjacent active circuitry is also ruined. Repairing that 
kind of thing requires determination and patience. But it *can* be done.

I have found goo from leaky batteries that did not corrode or ruin 
anything! That was a pleasant surprise. I just washed it off and 
returned the gear to service. I think it was alkaline cells that leaked 
in that instance. Maybe the ones without mercury.

I have not had all that many battery failures over the years. Lucky me:)

Good luck with your project.

73,

Bill  KU8H

On 06/11/2018 09:03 AM, Robert  Eleazer wrote:
> Okay, here is a related question.
>
> If corrosion occurs, what is the best way to clean it up?  I think that
> wire brushing/sandpaper followed by some LPS-1 seems to be the only
> hope.  Of course it is often very hard to get to the contacts with a
> wire brush
>
> Wayne
> WB5WSV
>
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-- 
bark less - wag more