6 hours 7 minutes of idle time with modem on and fully reachable on Birch! That'd be about 10h for Dogwood's battery!

The only caveat: SD card reader needs to be disabled (for now). Power management comes together pretty nicely on the Librem 5! :)

With modem and WiFi on I got 5h 34min, and with both off - 7h 45min. With final battery that should translate to about 9h and 12h respectively.

This progress comes mostly due to runtime power management improvements - we don't suspend the CPU! With WiFi on, the phone was reachable and ssh-able through all this time.

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@dos out of curiosity, would a suspended cpu be able to process incoming calls and potentially increase battery life even more? Or is it a deliberate decision to keep it powered on when the screen is off?
Amazing to see how much battery life is improving!

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@vancha @dos wifi is more tricky than the modem since you don't want to wake up the cpu on every wifi packet. The modem is pretty clever by itself.

@agx @vancha @dos Would it be possible that the cpu wakes up every few minutes for a short moment to check for push notification updates?

@Alexmitter @agx @dos It would sound like push messages could send some sort of interrupt, to temporarily wake up the cpu?

@vancha @agx @dos I dont think that would be possible, its more like a timer interrupt that wakes the CPU every 10 minutes or so, so it can check for push msg itself.

@Alexmitter @agx @dos right :) to be honest I trust the purism developers 100% in choosing the right way to handle this. I can't wait to get the thing, but it's still great to see how it keeps improving the way it does.

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