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Old 07-10-2010, 09:58 PM
Join Date: Nov 2008
Posts: 14,000
What is that white crusty stuff on batteries?

When batteries are used for a long time in something like a remote, then you open the back to change it and there's this white crusty stuff on the edges. What is that? Is it dangerous?
Old 07-10-2010, 10:16 PM
Charter Member
Join Date: Aug 2001
Posts: 14,434
This might help --->
Old 07-10-2010, 10:18 PM
Join Date: Jul 2009
Posts: 12,056
it is slightly corrosive to the electronics and skin. open the device over a sheet of newspaper and remove the batteries. use a knife to scape any crust off the battery contacts of the device. wiping battery compartment and battery contacts with moist paper towel if residue has got on them.wrap up batteries and crust and discard. wash hands and knife.

Last edited by johnpost; 07-10-2010 at 10:21 PM.

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