>I wouldn't bother though, batteries >aren't that expensive and the calcs don't use them very quickly hmm.... depends how often you use your calc. I often have it doing calculations overnight... -Dan TI-HQ The TI HEADQUARTERS: games, progs, reviews, articles, high scores, on the horizon, top ten, screen shots, fun stuff, and more. visit us at: http://www.geocities.com/SiliconValley/Bay/2634/