Lately I've gotten a very strange behavior from my phone:
at a certain time (around 23h) the battery begins to drain,
it's very annoying because I used to keep the phone on during the night (and as a result woke up with a dead phone in the morning).
I use juice plotter to see what's going on and surely: at around 11 the graph drops at a higher speed compared to the graph during daytime.
I didn't install new apps (that I know of), don't use wifi or mobile network.
I do keep my phone updated (I regularly update all my apps) so an update of a certain app can be the cause (question is: which app?))
If I look at the info of the os itself it doesn't show a certain app using more battery then usual.
How can I investigate this issue?