On Mon, Feb 23, 2015 at 12:02 PM, David C Brown wrote: > put a small coin on top of the battery - or should I say on > top of the top cell :-) > Assuming more than one cell, then the former is fine I think ;) Chris --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .