The DS18 15A Automatic Smart Lithium and AGM Battery Charger, Maintainer, and Jump Booster makes it easier than ever to maintain and charge your batteries of all kinds. This DS18 charger accepts Lead-Acid, Wet, Gel, and AGM, Calcium, and Lithium batteries using LiFePO4 cells. The 15A max output ensures efficient charging. Compatibility with 6V and 12V systems means even greater versatility. Switch between voltage compatibilities with the press of a button. 12V mode lets you choose your maximum charging output between 2A, 6A, 10A, and 15A, while 6V mode lets you select 2A or 5A. This charger also has an aux output for charging and accessory power for your phone, power lamps, and other aux-compatible applications. When utilized in a 12V vehicle system, this automatic charger can provide as much as 20A in barely 5 minutes. Safety features include thermal protection to prevent overheating, reverse connection protection to safeguard against accidental mistakes, and overcurrent/overcharge protection to maintain a healthy battery life. Going beyond standard charging and maintenance, this battery charger brings an innovative repair mode to bring back batteries neglected or plagued by common issues such as sulfation, stratification, or long periods of inactivity. Switch to Power Supply Mode to charge without an AC outlet. Intelligently designed to handle battery capacities ranging from 2Ah to an impressive 400Ah, the DS18 15A charger provides the perfect charging and maintaining solution for all setups. Smart battery charger, maintainer, power supply, and booster 15A output, 20A boost output Accepts Lead-Acid, Wet, Gel, and AGM, Calcium, and Lithium batteries using LiFePO4 cells Charges 6V or 12V systems Selectable charging amperage Protections against overheating, reverse connection, and overcurrent/overcharging Power Supply Mode to charge without an AC outlet