Thank you for the feedback.

No, this is purely a concept for a business project, no spam at all. We are not actually making the product itself, it is a research assignment, We just need opinions from our target market (average golfers)
To answer your questions,
it should weigh about 20 pounds (b.c of the 4th wheel) and yes you can pull it if needed so.
price: aprox. $1000 (but it is a one-time price and do not need money for continuous rental fees .. its cheaper than Stewart Golf (about 5000 dollars)
battery life: we are using lithium ion-one of the most efficient in the battery market ...how many holes... we are still working on that sorry.
And you mentioned another product like this already exists, do you mean Bat Caddy? We have introduced new features they do not have and we are using them as our major competitor in our analysis of competition.

Thank you!