The CTEK Lithium US Battery Charger is an advanced microprocessor-controlled charger specially designed to recharge and maintain the cells of Lithium-Iron (LiFePO4) batteries thus maximizing their performance and lifespan. With up to 4.3A of charge current available the Lithium US Battery Charger is extremely flexible and will charge LiFePO4 batteries from 5Ah to 60Ah and maintain up to 120Ah. The operation is simple and charging will commence upon connection. With no need to disconnect the battery from the vehicle, at charge start it will automatically reset any low voltage protection electronics (Battery Management System) fitted. Charging can be restarted manually at any time using the Reset button. The CTEK Lithium US Battery Charger is a fully automatic connect and forget charger with eight charging steps including a testing sequence to show if the LiFePO4 battery can take and retain the charge, a unique maximization step to restore full capacity, and patented maintenance charging to ensure maximum performance even after months of inactivity. Splash-proof and dust-proof (IP65) it is easy and safe to use, protects vehicle electronics, is spark-free, is reverse polarity protected and short circuit proof. This product carries a five-year warranty.