"The Float Charger Battery Maintainer helps you maintain your 12V battery at a safe, constant voltage for maximum battery life. ETL US approved. Amps 1.2, Charges Yes, Charges Multiple Batteries qty. 1, Maintains Yes, Overcharge Protection Yes, Polarity Reversal Protection Yes, Power Cord ft. 2, Works With 12V battery. Bulk mode ensures that current continues until the battery is fully charged Float mode trickle charge maintains a fully charged battery at a safe, constant voltage Built-in overcharge protection prevents battery damage 5-ft.L, 18 AWG cables with 2-ft. extensions containing your choice of battery terminal rings or nickel-plated clamps 12.5V with 1.2 Amp charge rate"