Battery Tender 4 Amp Acid / Lithium Selectable Charger

The fully automatic battery tender 4 amp is a top-of-the-line 12v or 6v switchable battery charger, 12v lithium (lifepo4) perfect for automotive, motorcycle and marine repair and maintenance shops. with 3x the power of the battery tender plus, this charger is versatile and powerful. equipped with a simplified four-step automatic charge process. all battery tender chargers automatically switch from full charge to float charge mode. reverse hook-up protection makes connecting your charger safe and easy to do. led light indicators make selecting your charge mode simple. 12v or 6v switchable @ 4 amp. selectable for agm / standard / gel or lithium (lifepo4) *12v only for lithium. ism (infinite sequential monitoring) of the fully automatic four-step charge process (qualification, bulk charge, absorption, float). microprocessor controlled. spark proof even when output leads touch. reverse polarity protection - no charge or battery damage. state of charge led indicators. includes rings and clips. shipping weight: 3.15 pounds. dimensions: 6.8" x 3.68" x 1.96" (charger only). lead acid safety timer: 25 hours. lithium safety timer: 15 hours.