100% brand new and high qualityFeatures: Made of high quality material, sturdy, durable and practical to use. Great for fixing overload and low voltage, protects the battery from undervoltage, protects the battery from overcharging and protects load control, prolongs battery life. When the battery voltage is insufficient, unplug the load and plug in the charger. When the battery voltage is too high, unplug the charger and plug in the load. Adjustable parameters and LCD screen show the parameters clearly, easy to use. With 6-60V control voltage, it is suitable for batteries, lithium batteries, etc. Specification:Material: Plastic Model: XY-CD60Size: app.79 x 43x38mm/3.11x1.69 x 1.50inControl Voltage: 6-60VTrams: Charging Mode; Discharge ModeColor: As the picture shownQuantity: 1 PcCharging Mode:By setting the upper voltage limit up and the lower voltage limit dn; When the battery voltage is less than or equal to the lower limit of the voltage dn, the relay turns on and the charger starts to charge the battery; When the battery voltage is greater than or equal to the upper limit voltage, the Relay disconnects to complete automatic charging; When the relay turns on, it flickers to indicate that it is charging. Discharge mode:By setting the upper limit voltage and lower limit voltage dn; When the battery voltage is greater than or equal to the upper limit voltage, the relay turns on and starts to discharge; when the battery voltage is less than or equal to the lower limit voltage dn, the Relay shuts down and ends the automatic discharge function; When the relay turns on, OUT flickers to indicate that it is discharging. Tip:This product is a simple voltage regulator. It can turn on and off the output through a relay. It only plays the role of switching and cannot change the voltage. Functional Instruction:1. Voltage Percentage Calculation: Battery Voltage/(Upper Voltage-Lower Voltage)2. Key function:UP: short press % and time display, long press 5 seconds to switch mode; Charging mode: IN, discharge mode: OUT. SET: short press to check the currently set parameters; Long press to enter the parameter setting interface, set: voltage upper limit, dn: voltageLower limit, OP: power-on time, dOP: power-on delay time (0-999 seconds), FOP: forced power-on time (0-10 seconds) In discharge mode. Down: turn off/on the electrical relay (emergency stop function) turn off, LCD display turn off, relay disconnect: long press to adjust the LCD status Backlight, L-P: OFF backlight constant brightness, ON: backlight automatically turn off after 5-10 minutes; After extinguishing, pressAny keys to wake up.3. Parameter SettingsA. Enter the parameter setting interface by pressing set;B. After entering the parameter setting interface, switch the setting parameters by short pressing SET;C. After selecting the parameters, it can be set by the up/down key, supporting short press or long press.D. If you want to set other parameters, repeat steps b and c;e. After setting all parameters, press and hold set to exit and save; 3.1 Charge/discharge function time control1) when the parameters in the OP time is not zero, start charging/discharging time control.2) when the relay turns on the charge/discharge, the countdown starts; When finished, the relay is automatically disconnected to complete theCharge/discharge process; If the time is completed, in the charging mode, the detection voltage is less than the lower limit voltage dn or in the discharge mode, the detection voltage is greater than the upper limit of the voltage, and the charging time control function is automatically Off and flashing. Indicate H: ER reminds users that it is unreasonable to set time parameters; Press any key to stop flickering; 3) When the charge/discharge time control is not enabled, the product will record the full time. When entering the time display interface, it flashes shows the charging time, and then exits the time display interface, or erases at the next time charging is turned on (the relay is on).3.2 automatic parameter detection: When the parameters are set and exiting, if the lower limit of the DN voltage is greater than the upper voltage up, the system will flicker to display "ERR" as a reminder.3.3 delayed power-on function (0-999 seconds): Charge/discharge completion, reopening interval; 3.4 forced discharge conduction start time (0-10S):P when the relay conduction state is met, the relay is forced to turn on (0-10S) to detect the battery voltage again. This function is mainly aimed at the discharge function. Some test loads immediately lower the lower limit voltage at the time of conduction, which will lead to the relay being disconnected and the normal discharge process failing. Analysis of typical faults:Question 1: how many levels of V are usable? How much voltage V fits this module? Answer 1: this model is suitable for use in the range of minimum 6V, maximum voltage of 60V and maximum expenditure level of 48V because the 48V battery is full of elec