Deliverys commenced during late December after many excuses from Damien regarding regarding fine tuning of software. Since then many complaints about battery monitoring software. Give credit to the company a fix has been notified to correct this, however unless you use a Widows computer it can't be used.
The problem is (on my watch) the app shuts down the watch when battery reaches approx 30% capacity. This reduces time on by approx 24hrs.
Maybe Loki or other developers here could come up with a fix for this !