Recently a serious battery drain problem appeared where the watch would last only two after a full charge eeven by not using it and being on airplane mode meaning all the features are closed. After chatting in the garmin chat i was advised to factory reset the watch and it seemed to be better for the first days. It would last for about six days from 100% to 60% but then it would lose 30% over night without wearing it and by having all the features off. Any ideas or anybody having the same issues?