Just a follow up to this post.
I picked up my cart yesterday. I went with a Club Car Precedent 48V electric cart. Got a fair deal on it with 2012 batteries. Ran the cart an equivalent of 15 times to the front and back of our favorite campground and still going strong. (about 1/2 mile each way)
Will have more than enough power/run time for me, the wife and younger boy. We'll see this coming weekend at a campground in New York
The neighbors probably all got tired of me going back and forth so many times through the neighborhood
Love how quiet it is compared to the gas carts. The cart goes around 11MPH (programmable to 19MPH) but the campground is posted for 10MPH. All good! .The older boy thinks it is a cool cart but boringly slow so that is a good thing.