NEW battery test, day 350: 3.06 volts. The one year mark approaches! Also: I caught up with my friend Ben on day 348; he's been wearing a green watch that started its life on the same day. One difference: he left the hourly chime on, and his battery is at 2.94 volts over this same period. THIS IS A GREAT DATA POINT! It tells me that year-long battery life still holds with the chime turned on, and it's still more efficient than the old firmware (which was at 2.8 volts at this point in the test).