Originally Posted by Contra
i might be wrong, but it is a 15 amp motor and that means roughtly 1800 watts right?
where do you get 137.5 amps?
i guess i will do things the easy was and get a pre built, i just wanted to use what i had
Watts Law is where he got the 137.5 amps. Watts Law states P(watts)=V(volts) x I(amps).
So P= 110v x 15 amps = 1650 watts
To go to 12v you'd take P divided by V = I
So 1650/12 = I(amps) = 137.5 amps
Now there's more than you really wanted to know...
EDIT: Hey! I actually used something i learned in school!