I have an HRM-Dual Heart Rate Monitor that's about a year old. After an initial connectivity issue, the monitor has worked pretty flawlessly, until this week, when it started quickly running down it's battery. If I insert a new battery, it'll last through a workout, but then when I go to use it again the next day, the battery is worn down to the point where the watch cannot find it. Put in a new battery - the same thing happens. Any similar experiences out yhere? Any known resolutions?