I don’t have a number for you, and I’m not real familiar with that drill, but provided it has good torque I’d say “quite a few.”
I have a Milwaukee Fuel 18 volt and the 8″ Lite Flite and was impressed how many holes it will drill. My kit came with 3, 5AH batteries. I think I only burned through about 1.5 batteries a couple times last year while jumping around a flowage searching for crappies. Most of the time if I just drilled out a known spot to find schooling crappies I could easily do it on 1 battery. I don’t think I ever went through 2 full batteries in a day, and I’m really not shy about drilling holes.
Not a scientific answer, but the Lazer blades seem to be pretty efficient. I was also surprised how smooth and easy it was to control the drill with the 8″ bit. No binding or bucking at the bottom of the hole.
Tucker