1.5A Fully Automatic Onboard Maintainer/Charger, Keeps 12V Batteries Charged, Fully Automatic, Turns On & Off As Needed, Allows Safe Charging Of RV, Deep Cycle Or Most Batteries That May Have A Long Storage Period, On Board Feature Allows Mounting Of Charger Next To Battery On Collectibles, Street Rods & Other Infrequently Used Vehicles, Hardware & Mounting Brackets Are Included, 1.5A Trickle Charge Rate, Charges In 2 To 12 Hours, LED Lights, Indicate Power On & Charged, Reverse Polarity Protection, Molded Plastic Case, Short Leads For Safety, Won't Get Tangled In Moving Engine Parts.