Amp Engine Start, Professional Bench charger maintains and charges any AGM, GEL or WET automotive or marine 12V battery,100 Amp engine start helps start your vehicle in 60 seconds or less, 30 Amps of continuous charging capability, 3 Amp Maintainer to help preserve battery life, LCD screen displays charging status and battery status with easy-to-read icons, Alternator Check, Battery Recondition, & Countdown Charging Timer, Compact & Lightweight Design, AC cord Wraps on back for neat storage, Reverse Polarity Protection,Short Circuit and overload protection, Automatic charge cycle/ Boost Cycle, overcharge protection, ETL Safety Listed