So, my M360 was one of those with poor battery life. Even with ambient screen off and light usage, I was seeing 6-8 hours of battery, which was disappointing. But now I'm starting to see much better battery life, even with heavy usage. Here's what really helped me.
I realized that I had never run the battery to zero. I always tossed it on the charger when it hit somewhere between 12 and 20%. So I decided to let the battery run out and have the device shut off. Once I hit like 10%ish, it took wayyyyyy longer to drop even one percent. Fit example, it took almost an hour to go from 2% to zero. This led me to believe that the battery is not truly calibrated until let the battery see the really low percentages. So, I let it die, then charged the watch up to 100, uninterrupted. Now, I'm getting battery life that will last me all day! The kind of battery life reported by places like droidlife. I suggest you guys with poor battery life try this, then post your results here!
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