On 8/14/2015 10:02 AM, Thane wrote:
I've used a Qtip dipped in tap water to remove the most of these
deposits. Vinegar should be used cautiously as acids may attack the
metals used in the battery contacts in the device you're trying to clean
up.

Thane


Vinegar is a mild acid, not much danger to
metals. Rinse after, to remove the dissolved
ionic solids.

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Christopher A. Young
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