Product Description 12V 20A DC to DC Battery Charger, Dependable Power Source This versatile battery charger is suitable for both lead-acid and lithium batteries and can be used with different types of generators, making it perfect for use in RVs and boats. It features intelligent multi-stage charging and safety protection to ensure reliable operation under various conditions. Its compact design is ideal for installations where space is limited. Rapid Power Replenishment This DC to DC charger utilizes energy from the generator to replenish your RV's auxiliary battery during travel, maintaining a steady power source throughout your trip. All-Encompassing Safety This battery charger is equipped with integrated safety mechanisms, such as high temperature, short circuit, over voltage, and under voltage protection, guaranteeing reliable and consistent operation during travel, allowing you and your family to have a relaxing vacation. Consistent Functionality The integrated cooling fan adapts to the battery charger's temperature, maintaining smooth and efficient operation in various settings without overheating, ensuring reliable performance consistently. Recharge Dormant Batteries This DC to DC battery charger addresses problems with lithium batteries due to excessive discharge or extended storage, revitalizing your battery and preventing premature disposal. Battery Support This battery charger is crafted to fit into compact spaces, ensuring straightforward installation in your vehicle's confined areas, making it a suitable option for your requirements. Effortless Observation The two-tone indicator allows for quick and easy monitoring of the charging status, eliminating the need to frequently check the charger or battery. Specifications Item Model Number: SDC-20A Input Voltage: 12V Input Battery Voltage Range: DC 8V-16V Charging Current: 20A Charging Voltage Range: 13.2V-14.7V (Lead-acid Battery), 12.6V-14.6V (Lithium Battery) Maximum Output Power: 250W Compatible Battery Type: Lead-acid & Lithium Battery Casing Material: Aluminium Alloy Operational Temperature: 4 °F to 122 °F/–20 °C to 50 °C Net Weight: 2.65 lbs/1.2 kg Package Content 1 x DC to DC Charger 2 x Fuses 1 x User Manual