Happy New Year!

I’ve been using the PinePhone 1.2 to develop
synit recently. I haven’t done anything about power management
or sleeping yet, and I wondered how bad the battery life might be, so last night I ran the
following script from a full battery until the phone shut down from lack of power:

1
2
3
4
5
6
7



while true
do
    date
    cat /sys/class/power_supply/axp20x-battery/capacity
    sleep 60
    sync
done | tee -a battery-rundown-log

Here is the resulting discharge curve (data):

Before running the script, I turned off the display and backlight,

1
2
3
4
5
6



# Puts the framebuffer in "graphics" mode, disabling touchscreen 
# sens