On my F265 starting at around 20% of battery I do get constant alerts if I want to enable battery save mode. That is rather early in my oppinion, given the fact that I can still use the watch easily more than a day from now on - even with a training session.
1. It does not disappear after some time - I have to react to this alert with yes/no
2. I cannot set manually a different treshold, e.g. 5%
3. I cannot disable it completely - which I would prefer
I find it very annoying, and it leads to the fact that I start recharging the watch already at 30%, which is kind of silly
Searching for a possible setting - I might be missing - it appears that at least some Fenix watches do have the possibility to switch off this alert completely
SUGGESTION: Include on F265/F965 an option within Power Manager: Low Battery Alert - yes/no