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Author Message   M_currie Tinkerer Username: M_currie Post Number: 248 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Saturday, February 05, 2011 - 09:21 pm:    I have noticed that the hearing aid batteries are getting a bit harder to find, so it might be worth readjusting eventually. I haven't done so yet, because I've lost track of the instructions for the T3, but I might try it on one of mine if I find them again. I have found the silver oxides occasionally and very sporadically at Big Lots stores, in packs of 5 or 6 for a couple of bucks, under the Sunbeam label. The ones I've gotten have been fine, and at that price, worth stocking up on. They'll last much longer than zinc air. If you have a Big Lots store nearby, keep an eye open.