Automobile lead acid battery health state detection apparatus

The utility model relates to an automobile lead acid battery health state detection apparatus installed between all electric power equipment on an automobile and a lead acid battery. An anode of the lead acid battery is connected with a Power terminal of the automobile lead acid battery health state detection apparatus and an IN terminal of an electric power equipment load; a cathode of the lead acid battery is connected with an OUT terminal of the automobile lead acid battery health state detection apparatus; an IN terminal of the automobile lead acid battery health state detection apparatus is connected with an OUT terminal of the electric power equipment load; the Power terminal input is connected with a switching power unit; the switching power unit outputs to supply other units of the apparatus with power; the IN terminal and the OUT terminal of the apparatus are input to a signal conditioning unit; the signal conditioning unit performs acquisition and conditioning of output signals of the lead acid battery and the load and then transmits the signals to a signal processing unit; the signal processing unit acquires discharge voltage of the lead acid battery; and results are transmitted to a display unit for display after the signal processing unit performs determination and processing. The apparatus is convenient to use, simple in internal circuit and high in detection precision.