Micro Brix gmail.com> writes: > The lithium coin cell had leaked over this area, which had a number of lead > solder joints, and copper traces of course. > I am wondering if there's a possible chemical reaction there that leads to > an explosive? This is common with boards that got lithium battery electrolyte leaked on them. I do not know what the chemical is but it goes bang from heat. Wear safety lab glasses when doing such jobs, and close all solvent bottles etc. Peter P. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist