#!/bin/sh

charge_now=`cat /sys/class/power_supply/BAT0/charge_now`
charge_full=`cat /sys/class/power_supply/BAT0/charge_full`
charge_full_design=`cat /sys/class/power_supply/BAT0/charge_full_design`

voltage_now=`cat /sys/class/power_supply/BAT0/voltage_now`
voltage_min_design=`cat /sys/class/power_supply/BAT0/voltage_min_design`


charge_pct=`echo "$charge_now * 100 / $charge_full" | bc`
charge_dsg_pct=`echo "$charge_now * 100 / $charge_full_design" | bc`
charge_full_pct=`echo "$charge_full * 100 / $charge_full_design" | bc`

voltage_now_v=`echo "$voltage_now / 1000000" | bc`
voltage_min_design_v=`echo "$voltage_min_design / 1000000" | bc`

printf "Battery charge    %2d%%   (%2d%% of original capacity)\n" "$charge_pct" "$charge_dsg_pct"
printf "Battery max              %2d%%\n" "$charge_full_pct"
printf "\n"
printf "Voltage now       %2d\n" "$voltage_now_v"
printf "Voltage dsg min   %2d\n" "$voltage_min_design_v"