External Power for Adafruit Motorshield(Arduino)

Hey guys, I have an Adafruit Motor shield which I hope to control two DC motors(6-12v each) to make a tank. I want to power my motor shield with batteries(not an adapter), but im not sure where on the Arduino or the Motor shield board am I supposed to hook up the two wires from the batteries safely.

vek11 (author) 5 years ago
where it says "EXT_ PWR"?
Baystray5 years ago
If it's this one: http://adafruit.com/products/81
The two screw terminals alone next to the reset button.
Jayefuu5 years ago
Across Vin and Gnd.