I sent an email to Samsung support about this today, but thought I'd share here. I received my Gear 2 on April 9th, (pre-order from AT&T) and since then have been very pleased with the battery life, always over 50% at the end of the day, and I would just charge it every night. Until 3 days ago - suddenly, my batter life has plummeted, and seems to have gotten somewhat erratic. This morning, after 4 hours (minimal alerts and use), and it was down to 50%. It seems to sit there for a while (an hour or two???) and then I get the alert that the battery is critically low (@ 15%). I'm not running non-stock apps, except for a downloaded watch face, I keep the screen brightness at the default of 4, though I do use the gesture to wake up the watch. But I'm getting 6-8 hours tops before the warning to re-charge. Of course, that's not usable.
I've tried uninstalling Gear Manager from my phone (Verizon GS 3, with Android 4.3), and resetting the Gear 2 to factory defaults (twice)., and then re-installing, with no improvements. I usually run the Weather clock face, but I've switched to the Diamond Analog that I downloaded. I don't have email configured, and have the weather set to update every hour. Not sure what could cause this, except a software glitch of some sort, or a defective battery??? As I said, I've emailed Samsung, and if don't hear something soon, I'll try calling.
Keith
I've tried uninstalling Gear Manager from my phone (Verizon GS 3, with Android 4.3), and resetting the Gear 2 to factory defaults (twice)., and then re-installing, with no improvements. I usually run the Weather clock face, but I've switched to the Diamond Analog that I downloaded. I don't have email configured, and have the weather set to update every hour. Not sure what could cause this, except a software glitch of some sort, or a defective battery??? As I said, I've emailed Samsung, and if don't hear something soon, I'll try calling.
Keith