Repair / Rebuild Service for Lithium E-Z-GO Delta Q Quiq 48V battery charger (model 9134830-E3B. When you purchase this product, you are paying for the service of having YOUR battery charger rebuilt. The Lithium (lime green in color) Delta-Q Quiq charger by E-Z-GO is the the charger you should be using for your application. Let us get it going again for you.