Fenix 7 Solar sudden battery drain 8.37

Today morning my Garmin Fenix 7 Solar battery was draining 4% per hour. I had not made any changes in the watch, the battery was just draining. Reset with light button didn't help. Finally I installed the latest 9.33 update, and now I'm back in under 0,2% drain per hour.

Now I'm wondering how a sudden battery drain is possible, and what made it happen? I had sleep mode turned on, but I don't know if  the watchface changed to "sleep mode". When I waked up, the watchface was normal, but sleep tracking didn't stop before I stopped it manually.

Any suggestions why this battery drain happened? 

Top Replies

  • I know, but what battery app? So, I can install and check as well ;)

     apps.garmin.com/.../1643a8ec-cc25-4757-9c1e-31b9211b47a3

All Replies

  • Ok its something with BT... i turn it of and its went from 4% per hour to 0.04....