report-battery-stats.sh

#!/bin/bash

Main() {
    while true ; do
        ReportBattery >>/tmp/battery-stats.txt
        sleep 5
    done
} # Main

ReportBattery() {
    # cat /sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/power_supply/battery/uevent
    for file in /sys/devices/platform/sunxi-i2c.0/i2c-0/0-0034/axp20-supplyer.28/power_supply/battery/* ; do
        if [ -f "${file}" ]; then
            echo "${file##*/}: $(cat "${file}")"
        fi
    done
} # ReportBattery

Main