Battery saver activated unintentionally

Hello everybody,

I have had my Venu 2S for over 2 years now and I'm still very happy with it.

But there is one little thing that really annoys me:

sometimes the battery saver activates itself, even if the battery is at 50% or more. It seems like there is some type of shortcut which opens the settings > battery management directly, but until now I couldn't find any shortcut function when I tried intentionally.

My partner has also a Venu 2 and he has the same problem, also another person with the new Vivoactive 5.

Anybody else with this problem? Maybe someone has found an explanation for this? Is there any way to turn this shortcut off?

Thanks for your insights!