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<p>[QUOTE=&quot;Kentucky, post: 1637593, member: 33176&quot;]<img src="http://www.cointalk.com/images/misc/quote_icon.png" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> Originally Posted by GDJMSP <a href="http://www.cointalk.com/t222336-2/#post1637393" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t222336-2/#post1637393"><img src="http://www.cointalk.com/images/buttons/viewpost-right.png" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a> </p><p>What you are apparently unaware of is that when copper and&nbsp; aluminum are in contact with one another when moisture is present is that an&nbsp; inevitable electrochemical process occurs. This is what causes the copper coins&nbsp; to corrode.</p><p><br /></p><p><br /></p><p>Read more: <a href="http://www.cointalk.com/t222336-2/#ixzz2KccXF2Y7" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t222336-2/#ixzz2KccXF2Y7">http://www.cointalk.com/t222336-2/#ixzz2KccXF2Y7</a></p><p><br /></p><p><br /></p><p>Somewhat agree with both, but #1 The corrosion should occur on the more active metal (keepers on ship hulls) although it could spread and #2 In old battery operated devices the main problem is that the battery leaks acid on the surrounding parts indiscriminately.[/QUOTE]</p><p><br /></p>

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