#!/bin/sh

# for UPS monitoring with NUT 
#
#POWER="$(upsc titanium-power@localhost | grep ups.realpower: | awk '{print $2}')W"
#CHARGE="$(upsc titanium-power@localhost | grep battery.charge: | awk '{print $2}')%"
#if [ "$CHARGE" = "100%" ]; then
#  echo $POWER
#else
#  echo "$CHARGE $POWER"
#fi

# for battery monitoring everywhere else
#
# if power_now is not present, calculate it:
#VOLTAGE=$(cat /sys/class/power_supply/BAT*/voltage_now)
#CURRENT=$(cat /sys/class/power_supply/BAT*/current_now)
#POWER=$(echo "scale=2; $VOLTAGE*$CURRENT/1000000000000" | bc)

# if it is present, just divide it to watts (from micro watts on thinkpads, perhaps something else on other platforms)
POWER=$(cat /sys/class/power_supply/BAT*/power_now)
POWER="$(echo "scale=2; $POWER/1000000" | bc)W"
CHARGE="$(cat /sys/class/power_supply/BAT*/capacity)%"

echo "$CHARGE $POWER"