High Output charging current (4 amps)High Voltage capable (20 volts) – designed to improve recovery of sulfated batteriesSwitchable Mode operation:Fast Mode – for quick vehicle set-upNormal Mode – ideal for smaller batteries, initial activation, and deeply discharged batteriesCommercial Grade – perfect for Dealer / Shop useSuitable for all battery types – Conventional, as well as MF (AGM), including YTZAutomatic Shut-OffReverse Polarity Protection / Spark-free Operation (UL / CUL) approved)Durable construction for longer life3 year limited warranty