Feature:This product is suitable for 6-60V battery charging control, can be set free to start charging voltage and stop charging voltage!In the IN input charger 660V voltage, in the OUT terminal battery, for example, set 12V start 15V stop when the voltage is below 12V, when the relay is closed to the charger charging voltage to the battery, when the charge voltage is greater than 15V relay off to stop charging, can be used in household chargers, solar and wind turbines.Product Introduction:Name: numerical control battery charging control moduleModel: XH-M604Input voltage: DC 6-60V (max 80V)Display precision: 0.1VControl precision: 0.1VOutput type:direct outputVoltage tolerance: +/-0.1VApplication fields: 6-60V storage batterySize: 80 x 53 x 20mm (Manual measurement, it is inevitable there will be 1 – 3mm error)Using Method:1. Set starting Voltage: in normal display voltage state,press the button will display start charging voltagelong press for 3s the digital tube will flash;you can start or stop button to set starting up charge voltage value2. Set Stop Voltage:in normal display voltage state, press the button will display stoping charge voltagelong press the button for 3s the digital tube will flash, you can start or stop button to set stoping charge voltage value3. Factory Reset: in power on state press the start / stop button at the same time,digital tube will display 888;that represents factory reset settingsPackage includes:1 x XH-M604 Battery Charger Control Module