Fast battery drain of new Jolla Phone

I think, especially those three apps are very CPU intensive and therefore need much energy. What do these apps show? Any processes with high CPU usage?

IIRC Lighthouse itself consumes a noticeable amount of power because of its constant polling. Try turning it off.

Another question: Have you used your phone before you updated to latest firmware? Did the battery drain appear after the update, or was it there before already?

Edit: Sorry, had to edit your post... It was not easy to read... hope it is better now :)

a bunch of dataloggers + checking battery every 2 minutes... wild guess, this will cost about 5%/hour at least - without a list of installed apps we cannot tell you what was a bad idea to install or what settings might be odd, also bad reception can cause battery drain as it needs to negotiate and probably change things and that will wake the device too - I stop right there, there are 100+ reasons why your battery drains fast (and a simple explanation is that it actually doesn't but you are looking at a wrong percentage read from the current learning cycle as you rebooted and removed the battery and so on - the more you interact with this kind of problem the worse it gets!)

I have had my Jolla for a year now and even though the battery consumption fluctuated a bit it usually, with my average usage, stay around 1,5 -2 day/ charge and recently my power consumption went totally bonkers, one charge barely made trough the day. So I use the device til it ran out of power and turn off by it self, then I removed the battery for 10 - 15 minutes, put it back in and recharged the device and now I'm back to 1,5 - 2 days/charge. I don't know why, but I know it have worked for others as well. See this post https://together.jolla.com/question/53669/why-does-my-battery-last-for-max-5-hours/