The battery plate you provided the link for does not have any "through" holes on it. You will want a battery plate with holes through it so that you can use #4-48 screws to secure it to the Mini Mounting Plate. Note: battery plates may ship with screws sized differently than #4-48, but #4-48 screws will anchor a wide variety of battery plates to the Mini Mounting Plate.
Also worth noting, most of the battery plates with through holes don't have a 4-pin XLR connector built in. Instead, you will need the battery plate and a 2-pin to 4-pin XLR adapter cable.
If you have additional questions, feel free to contact your reseller or AJA directly.
AJA Video Systems
+1 (530) 274-2048 Intl.
(800) 251-4224 US