I am observing significant battery drain when the SIM card is enabled. I conducted and documented two tests. I did not use the device, only noted the battery level once every hour. (During the day, not at night.) In test series 1, only Wi-Fi was enabled, and the battery lasted longer. Not quite 24 hours, but still. The battery dropped by about 4% from hour to hour. What is striking here is the sharp drop starting at 4:00 PM. In test series 2, only the SIM card was active. Here, the battery did not even last 12 hours, with a significant drop.
I can’t say for sure whether this has been happening since the last update, as I don’t use the device continuously. However, I always used to have both Wi-Fi and the SIM card enabled at the same time and never observed this kind of behavior.
