it can depend on whether your using the Electronic View finder or the LCD Screen on the camera and not sure in time but I believe its rated for about 580 Shots per a full battery, not sure what it is for recording video
on my previous one i never had an issue with the battery running out other than the one time I shot a wedding for family, but I do have a couple of spare batteries, so in that case it was a quick change of batteries and carry on
Thanks for the details. Still trying to choose one, but I don't know yet when.
No problem feel free to ask questions anytime