$ ls /sys/class/power_supply/BAT0
alarm
capacity
capacity_level
cycle_count
device
energy_full
energy_full_design
energy_now
hwmon2
manufacturer
model_name
power
power_now
present
serial_number
status
subsystem
technology
type
uevent
voltage_min_design
voltage_now

$ cat /sys/class/power_supply/BAT0/uevent
POWER_SUPPLY_NAME=BAT0
POWER_SUPPLY_TYPE=Battery
POWER_SUPPLY_STATUS=Charging
POWER_SUPPLY_PRESENT=1
POWER_SUPPLY_TECHNOLOGY=Li-poly
POWER_SUPPLY_CYCLE_COUNT=317
POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11520000
POWER_SUPPLY_VOLTAGE_NOW=12303000
POWER_SUPPLY_POWER_NOW=22920000
POWER_SUPPLY_ENERGY_FULL_DESIGN=57000000
POWER_SUPPLY_ENERGY_FULL=49970000
POWER_SUPPLY_ENERGY_NOW=32050000
POWER_SUPPLY_CAPACITY=64
POWER_SUPPLY_CAPACITY_LEVEL=Normal
POWER_SUPPLY_MODEL_NAME=L19C3PF5
POWER_SUPPLY_MANUFACTURER=Celxpert
POWER_SUPPLY_SERIAL_NUMBER= 2617