i can´t use RF on coercion deriver, please help, im on 1.7.10 with the last of 1.7.10, i can't change unit from MegaWatts to RF http://prntscr.com/dsathz

The Units are irrelevant to the actual charging, really just their for reference.

You need to provide more information as a most RF devices charge it. What mod is the item being used to charge it from, what item exactly is it?

im trying using a creative motor of buildcraft

i solved the problem, thanks.