Have you checked the muffler belt? OR you could call a cart mechanic to come out and have a look.

If you have a battery disconnect, make sure it is secured tightly and not loose. The same goes for both the negative and positive wires on your battery. Make sure they are tight and not loose.

Do you have any accessories that could be drawing power even when the golf cart is off? If so, I would look into that a little more.

If you don’t get anywhere after checking these things, I would just set up an appointment wherever you bought your cart and have them diagnose it.

Muffler belt? If you believe there is such a thing you most definitely need to call a qualified mechanic!

I think he meant the muffler clutch.

Maybe the muffler "spark arrestor"??

It’s either the ball bearings or the Fetzer valve.
I would guess it’s the ball bearings. It’s all ball bearings now a days.

I can’t see how balls have any bearing on the problem?

My muffler has a chain drive. the last longer than a belt.
 

My muffler has a chain drive. the last longer than a belt.

And the heat from the muffler won’t melt the chain : )

Battery issue
 

I had a similar problem, fortunately I addressed it with the Villages Golf Cart just before the end of our 1st year. They replaced the battery noting an old manufacturers date on the battery we received with our brand new cart. Have not had a problem since, hope this helps. Good Luck