SEC America DC-DC Battery Charger Converters are designed to meet emerging battery technology needs, in particular the accommodations of Lithium batteries with varying chemistries. Their robust 1500 Watt charging capacity and ability to share power with external loads during the charging cycle are among their many advantages. Off-the-shelf units are programmed to ideally be used with Lithium Iron Phosphate batteries. All models are microprocessor controlled and can be programmed at factory for optimum operation with batteries of virtually any technology. Custom units may be programmed to accommodate as many as three charging curves, from which the user can manually select.