Genasun makes über advanced MPPT Solar Charge controllers that provide the power you need when you need it most. The Genasun GV-Boost Waterproof (WP) is specifically designed for adding solar panels to a golf cart. Providing the ability to use lower voltage (6V to 24V) solar panels with 36V or 48V batteries, the GV-Boost WP is the industry's most efficient voltage-boosting solar charge controller. With a powerful panel and sunshine, you will be able to drive up to 10+ miles per day on the sun. You may never need to plug your cart in!