Rongtech supply current sensor,mosfet,FRD diode,DC/DC converter,cooling fan & heat sink .Car makers have been focusing their attention on reducing fuel consumption for several years. Currently, the main focus is to reduce fuel usage by managing the charging of the main battery. Early progress in energy management has now shifted focus and is heavily concerned with power management. This includes managing the battery, the combination of additional functions of the battery’s state of health and safety features, such as auto-disconnect. Secondary functions have been reduced and the size of the alternator has been optimized thus instantly reducing global electrical consumption.