It took a mere 3 weeks before the new batteries went down to 38 % and the "low status" alarm went off once again. It'll probably be good for another 2 weeks, but this is pathetic. We are talking about 2 AA in there, what in gods given name is sucking so much energy in that little thing? I'm thinking about switching to my old mouse, that one used one battery every 3 month. Eat that Apple (no pun intendet) Anyone out there encountering the same thing?