My Charge 4 battery has stopped holding a charge. Yesterday the device died suddenly. One minute I had 64% battery, and the next minute it wouldn't turn on or sync and appeared completely dead. I charged it fully, and then did a reboot through the Settings menu. I wore it to bed, and during the night it died again. When I woke up this morning, the app told me my battery was dead and the last sync was around 3:30 AM. That's less than 12 hours after it had a full charge. I don't use GPS, and I don't have the clock face set to be on all the time. I typically get 5-7 days from a charge, and I haven't changed any settings recently, so there's no reason the battery should suddenly be draining in less than 12 hours if the device is working properly.
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