The Battery Tender PowerPlus chargers provide increased power in a compact heavy duty package. Designed with a rugged, weather resistant exterior, this line of Battery Tender chargers is designed with Marine and Industrial applications in mind. This 18 AMP Charger provides a full charge to your 36V battery setup before automatically switching to float mode maintaining proper voltage levels without overcharging. Designed to be used with Lead Acid, AGM, and Lithium (LiFeP04) batteries. Programmed with a Lithium wake up mode to safely restore the voltage of a deeply discharged battery. Rated IP68 weather resistant and shock and vibration resistant; with safety features including spark-proof and reverse charging protection with advanced temperature compensation. Comes with: 5 Ft Extension Cord for PowerPlus Battery Chargers. The perfect accessory for extending the reach of your PowerPlus charger. Designed for compatibility with all Battery Tender PowerPlus Battery Chargers, this extension cable simplifies installations by providing easier access to batteries in hard-to-reach areas, ensuring hassle-free charging in your industrial or marine environment. This versatile extension cable contains fuses inside the output cables and inside of the connectors, and is compatible with both ring terminals and golf cart plugs, making it an ideal solution for a variety of applications. These high quality extensions are manufactured using 10-gauge wire designed to reduce heat and protect the wire in harsh environments. Perfect for boats, RVs, and golf carts, this cable is your go-to accessory for reliable battery management.