Sunday, June 21, 2015
8-minute run time for 3/8 cordless drill 18 volts
Example:
18 volts Lithium-ion
3/8 inch chuck
Max. Torque: 400 inch-lbs/33 ft-lbs/45 N-m
No Load RPM : 0-400 / 0-1,300 rpm
Clutch Settings : 15 position
Length : 7.7 inch
Weight : 3 lbs
Battery Charger: 45-Minute Fast Charger
Cordless drill run time depends on:
- Battery voltage: More volts, More run time
- Battery capacity: More amp-hours, More run time
- Drill Efficiency: More efficient, More run time
How long cordless drill run in a single charge?
?
Run time calculation
actual screws driven: 160 screws (3 inch size) per charge
assume: 3 seconds to drive per screw
Run time = 160 screws x 3 sec/screw
Run time = 480 sec
Run time = 480 sec/60 sec per minute
Run time = 8 minutes
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In this case the old Black and Decker 14.4 volt 2 speed cordless drill that I’d got through a customer rewards program about 10 years back was getting tired. richard leverette
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