Just acquired a brand new garmin forerunner 255 for christmas. Took it on it's first run today, at about 90% charge, but I am getting interruptions every 3 minutes during my run telling me that my battery is low. The watch never turned off though and seemed to function fine, besides the incessant power warnings. Concerned that the new watch may be faulty, wondering if I am just being an idiot somehow or if there are known issues related to this?