Not to mention the gas cart drivers who are shouting at each other as they drive by your lanai in order to hear each other.
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Seriously, a key factor in battery longevity is keeping the batteries at the proper water level and charging regularly. Battery companies such as Surrette, Rolls and Trojan all manufacturers of heavy duty "deep cycle" batteries such as used in carts will tell you that if the battery is not allowed to discharge more than 80% of it's capacity it should be good for some 1500-2000 charge cycles. If it is allowed to go less than 80% frequently your number of cycles will drop dramatically, like in half (= $$$$).
Consult with a knowledgeable battery guy about what this means for your cart and how it relates to your gauge.