[upstate]

We have the cart for about a year and a half. It has been serviced twice since then and batteries replaced last year. We have stalled a number of times before and after the new batteries, three today, when accelerating from going very slow or attempting to accelerate after coming to a full stop. It can take from a few seconds to a few minutes for it to go again. Any ideas, my wife isn't to happy about the cart to begin with and this isn't helping. Thanks.