Non Car Related Question

Do you have any friends with the same type cart where you could borrow their battery charger to see if it acts the same? We have a 2008 Club Car Precedent at the beach, and the charger shuts off when it's done. We've had the cart 2 years, and the batteries were 2 years old when we got it. It has an idiot light instead of a gauge, and after a full charge....the light is now coming on and staying on a minute or so after the key is cut off after a ride. It hasn't quit on us, but I'm gonna put new batteries in it this winter when I bring it home. I don't want it to strand my wife if she's out taking the dogs for a walk....er, uh, ride thru the campground!