The archive repo link worked, althought I got a security warning with a rooted app
I observed for a week.
During the week-end the phone did great with more than 2 days without recharge, but at 15% the battery started to discharge really fast.
During the week, I downloaded the bike app of my town:
and then the fast battery drain was also observed, I saw in betterbatterystats that my phone was not going back to sleep mode and stayed activated/awake all the day long. If I kill the app after using the bike, I have normal battery consumption.
I may also have noticed a strange behaviour with bluetooth but have not had time to reproduce it.