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MEET THE GENIUS2X4 — A four-bank battery charger for charging multiple batteries simultaneously. It's the all-in-one charging solution - battery charger, battery maintainer, trickle charger, plus desulfator - for four batteries. DO MORE WITH GENIUS — Designed for 6-volt and 12-volt lead-acid (AGM, Gel, SLA, VRLA) and lithium-ion (LiFePO4) batteries, including flooded, maintenance-free, deep-cycle, marine and powersport batteries. ENJOY PRECISION CHARGING — An integrated thermal sensor dynamically adjusts the charge based on ambient temperature, preventing overcharging in hot weather and undercharging in cold, ensuring optimal battery performance. CHARGE DEAD BATTERIES — Charge batteries from as low as 1 volt, or use Force Mode to manually charge completely dead batteries down to zero volts. Perfect for recovering deeply discharged or neglected batteries. BEYOND MAINTENANCE — Keep your battery fully charged without worrying about overcharging. Our smart charger constantly monitors the battery, allowing you to leave it connected safely - indefinitely - for worry-free maintenance. RESTORE YOUR BATTERY — Precision pulse charging automatically detects and reverses battery sulfation and acid stratification, restoring your battery's health for improved performance and extended lifespan. COMPATIBLE — Charges and maintains all types of vehicles, including cars, automobiles, motorcycles, mopeds, lawn mowers, ATVs, UTVs, tractors, trucks, SUVs, RVs, campers, trailers, boats, PWCs, jet skis, classic cars, and more. WHAT'S IN THE BOX — Includes a 8A four-bank charger, (4) 75-inch AC cables, (4) 21-inch battery clamps, and integrated eyelet terminals, (4) 10-foot DC extension cables, and a 3-year warranty. Proudly designed in the USA. › See more product details