100A, Fully Automatic Starter/Charger, 20A Boost, Variable 6 To 2A Charge, Heavy Duty, Great For Engine Starting, & Charging, Powerful Enough For Starting SUVs, Trucks & Large Batteries, LED Indicators & Button Controls, For Ease & Accuracy, Micro Processor Controlled, Automatically Adjusts The Amperage Rate To Charge & Maintain, Multi Stage Charging For Added Precision, Safety & Battery Life, Reverse Hook Up Protection, Charger Will Not Operate If Clamps Are Reversed, 6' Power Cord, 1 Year Warranty, 50 State DOE Compliant.