A drilling machine uses
approximately 45 to 90 watts; on average, it operates for about 3 hours a
day.
Enter the number of usage hours and power setting (in wattage), then click "Calculate"
to find the power consumption
of cordless drill battery charger using 90 watts for 3 hours
a day at AUD $0.23 per kWh. You will also see the running cost per hour, day, week, and year.