cat /sys/bus/i2c/devices/0-0034/axp20x-battery-power-supply/power_supply/axp20x-battery/uevent 
cat /sys/bus/i2c/devices/0-0034/axp20x-battery-power-supply/power_supply/axp20x-battery/uevent 
POWER_SUPPLY_NAME=axp20x-battery
POWER_SUPPLY_TYPE=Battery
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_ONLINE=1
POWER_SUPPLY_STATUS=Charging
POWER_SUPPLY_VOLTAGE_NOW=4215000
POWER_SUPPLY_CURRENT_NOW=800000
POWER_SUPPLY_CONSTANT_CHARGE_CURRENT=1200000
POWER_SUPPLY_CONSTANT_CHARGE_CURRENT_MAX=1200000
POWER_SUPPLY_HEALTH=Good
POWER_SUPPLY_VOLTAGE_MAX_DESIGN=4200000
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=2900000
POWER_SUPPLY_CAPACITY=89