So I analyzed it for my case: I used a one second interval to test for full hour to produce a chime. This was no issue before, but after firmware upgrade (also latest) this leads to drain. When I disable this, the interval battery drain stops. It involves only interval, date and 24 times a day a buzz.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
So I analyzed it for my case: I used a one second interval to test for full hour to produce a chime. This was no issue before, but after firmware upgrade (also latest) this leads to drain. When I disable this, the interval battery drain stops. It involves only interval, date and 24 times a day a buzz.