The duty cycle of a golf car...
Sent out every day to be returned when the batteries reach 50% state of charge
Every day
The duty cycle of an off grid battery
The to be recharged (daily?) when state of charge reaches 50%
Being sent out on a few weekends per year for a nine hole zot is not in the cards for a commercial golf car battery.
So RV duty for almost all GC batteries is like sending the Delta Force out to write parking tickets. Toss in Gomer Pyle and Beetle Bailey and they perform just as good as Delta Force personnel.
Reverse the duty and you will need two body bags.