Following on my previous thread regarding v13.0 battery issues (https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-935/160979/v13-0-battery-issues-during-indoor-cycling), I upgraded to v13.30 but with no improvement. I see sudden drops in battery from a healthy level like 70% to 4% on the start of an activity, like trail running.
Today, I tried running with a battery attached, it still went crazy on the battery level, even shutting down. Many times after rebooting, it shows a more proper battery level. All of this started with the v13 series of SW.
Opened a support ticket 3 weeks ago on this and haven't heard anything. It is now so disfunctional that I might have to revive my 310XT, just to workout!
Battery life outside of activities appears to be weirdly short too, but I see others are having this exact problem in the Fenix 5 forum too.
I am going to reset to Factory Defaults to see if that will improve things. Will keep people informed.
