motor shield help

I’m sure this is somewhere, but I’m not familiar with circuit diagrams and such and haven’t been able to find it, so what I would like is if someone could just say where I should plug the power source into the motor shield? I’m using a 7.4v 800mAh battery so I assume that that shouldn’t cause damage to the shield, also the shield is the r3 one.

Motor Power connects to the screw terminals marked Vin (+) and Gnd (-). This will also provide power to the Vin pin of the Arduino.

Thanks for that, that's what I thought but the first time I plugged the battery into those two points it didn't go so well, but it all seems to be working(ish) now.