Is there a way to convert Volts?

Question

I need to figure out the amperage of this drill.

http://www.amazon.com/exec/obidos/tg/detail/-/B000FLYQ72/ref=ord_cart_shr?%5Fencoding=UTF8&m=A1RVGQT9T7RRK5&v=glance

But i have no clue how.

Answer 1

You can't calculate it from the information given; however, most of these drills are about 1/8 horsepower, so the current would be about 95 watts.

At 18 volts, that would be about 5.2 amps.  The manufacturer's web site should have a customer service tab where you can ask for the information.

Answer 2

just from that page there's not enough, but, if you can get just one more piece of information(torque,wattage,horsepower) then you can get a rough estimate. this estimate cannot be perfectly accurate unless you have more information and know more complex formulas(efficiency of the motor is big factor)

to find amperage, Amps=Watts/Voltage

to find the output power(in watts), Power=torque*rpm

to find wattage(from the horsepower), Watts=HP*746

note that to find the output power from torque and rpm's, you need to have the torque in the correct units(which i believe is newton-meters)

Also note that the output and input power are different, due to the inefficiency of all motors

Answer 3

there's not enough information... you need resistance too