Fit Vehicle: This golf cart on board computer fit Club Car Precedent 48-Volt (04-15). Factory OEM Replacement: 102511001, 102586301, 103403201, 103446601, 103697002, 103702603, 103702604, 103978302 Function: The OBC purpose is to regulate the batteries charge. As you use and drive your golf cart, our OBC records the accurate amount of energy consumed and then directs the charger to replace exactly the amount of energy needed to fully replenish the batteries. High-Quality: High-quality part that meets the specs of the original, Perfect replacement and works great. Easy to install: Easy to put in took 10 min. The OBC has a long term storage mode of sorts and will activate the charger every 15 days or so to keep the batteries charged.