Turns off at ~55% charge

[white-round-square]

@Narkozzz

, driver unfreezes and starts to decrease

do calibration under load

Good runtime, but inaccurate charge level indicator despite calibration

Well, I think I’ve found the cause. I ran the battery calibration again, but this time I didn’t let the uCosnole run idle until it shut down; instead, I ran it under load. I played a Full HD video several times using VLC and also set the screen brightness to around 50%. Whilst the uConsole was running, the battery indicator steadily dropped, and the last figure I noticed was just over 20%. That seems reasonable to me. I then fully recharged the batteries, and now the battery indicator appears …