We are not able to default this checkbox to checked in batch.

This is a suggestion we are reviewing. If this would be beneficial to your organization, please select Yes in the Feedback section below and add a comment in the “How can we improve this information?” box to let us know how it would impact you. Select No if it would not be beneficial. 
Alternative solutions:
Globally change the checkbox to checked within the batch

OR

Globally change the checkbox in Admin > Global Change