KFFKFF 12V 20A DC to DC Battery Charger, 250W, On-Board Charger for Lead-Acid, Lithium, AGM, GEL, and Flooded Batteries, Intelligent Multi-Stage Charging, Suitable for RVs, Commercial Vehicles, Boats

Compatible with Multiple Battery Types: This 12V 20A DC to DC charger supports both lead-acid and lithium batteries, and functions with different alternator models. Perfect for recharging auxiliary batteries in RVs, trucks, and boats. Comprehensive Safety Features: This on-board battery charger is equipped with protections against over-voltage, under-voltage, high temperatures, and reverse polarity, ensuring reliable and safe operation. The isolated input/output design prevents interference with your vehicle's electrical system. Intelligent Multi-Phase Charging: This battery charger offers various charging phases tailored for LifePo4 (two-phase) and lead-acid batteries (three-phase: bulk, absorption, maintenance). It guarantees a thorough charging process to maximize battery capacity and longevity. Space-saving and Simple Setup: Featuring a streamlined aluminum alloy construction, this DC to DC charger includes pre-drilled holes for effortless installation in any location. Revitalize Your Batteries: This DC to DC battery charger includes a lithium battery activation function, efficiently restoring idle or deeply discharged batteries, ensuring they are ready for use whenever required.