6V 12V 1.5-Amp Smart Car Battery Maintainer Battery Trickle Charger Maintainer for RV Car Truck Motorcycle AGM Lead-Acid LiFePO4. Features: Universal Battery Compatibility, Wide Application Range, Easy Maintenance, Fully Automatic Operation, Smart Charging Technology. Specification: Origin - Mainland China, Material - ABS, Color - Black/Red, Input voltage - 100-240V AC, 50-60Hz, Output voltage - DC 6V-12V, Rated output - DC 12V 1.5A, 6V 1.5A, Battery range - 4-30Ah, Efficiency - about 85%, Compliant standards - CE, UKCA, FCC, Size - 120*85*55mm.