How much time do I have once Agamemnon starts warning me his battery is low? The picture on the screen makes it seem like i've got a week, but I feel like that makes it an un-useful and super annoying alarm. Do I need to change the battery before I go to bed, or will it keep working for the next week? Batteries are expensive, so I want to use them as long as possible, but I also know that the alarms don't wake me up.
Anyone ever kept track of how long a low battery warning lasts before there is no more battery left?