shatur@pinephone ~> ls /sys/class/power_supply/ip5xxx-battery/
calibrate         charge_type                  constant_charge_voltage      device@              health   status      uevent              voltage_ocv
capacity          constant_charge_current      constant_charge_voltage_max  energy_empty_design  hwmon5/  subsystem@  voltage_max_design  wakeup11/
charge_behaviour  constant_charge_current_max  current_now                  energy_full_design   power/   type        voltage_now