Note: Before you buy this Product Please Be Sure this RXV is the type of your Cart.If your can't sure it Please contact us and We will Give you the technical guidance *If it hasn’t automatically shutoff in 14 hours: *The charger is designed to turn off when the voltage of the battery pack reaches a certain level. I have found that some battery packs don’t always reach the required trigger voltage and the charger remains on in a trickle charge mode. *If this happens, unplug the charger from the wall outlet, your cart should be fully charged. Most of the times after the charger has completed a few charge cycles the charger will begin to operate automatically. .