I hate to say it but it's an impossible question to answer. Are you cutting 2x4's, 2x12's, plywood (what thickness), are you cutting pine boards or hardwood.
Put it this way, if you have 2 batteries, you will be fine cutting all day no matter what you are cutting unless you are just ripping 3/4" plywood for decking all day, but if that is the case this saw wouldn't be the best fit.
If you are a home owner looking for a good saw for house projects and you have 2 batteries, you will be fine. Sorry, it's just hard to say how many cuts you will be doing per charge.