Descriptions: This battery charging controller module, features automatic charging, automatic power off, suitable for battery use of 6V-60V, and use for car generators, solar power, wind turbines, electric vehicles charge. Feature: Thick circuit board for long-lasting performance. Easy to wire and safe to use. Adjustable parameter and memory retention function. Suitable for various storage batteries and lithium batteries. Automatic charging and discharging, safe to operate. Used for car generators, solar power, wind turbines, electric vehicles charge. Specification: Name: Battery Charge Control Module Control Voltage: 6-60V Control Current: ≤10A Control accuracy: 0.1V Voltage Deviation: ±0.1V Application: various storage batteries and lithium batteries Size: Approx. 7*4.8*1.7cm / 2.8*1.9*0.7inch Weight: 33g Voltage set method: In the state of normal stage(digital tube flash) Starting key can turn up the voltage. Stopping key can turn down the voltage. Set starting voltage: In the common state of normal voltage display, press the starting key, display the charging starting value voltage. Long press the starting key until the digital tube flash. Set the charging starting voltage value by starting key and stopping key. Set stopping voltage: In the common state of normal voltage display, press the stopping key, display the charging stopping voltage. Long press the stopping key until the digital tube flash. Set the charging stopping voltage value by starting key and stopping key. Resetting: In the common state of power-on, press the starting key and stopping key simultaneously, digital tube display 888, resetting is successfully completed. Settings: When the starting value can not be added, please adjust the stop value. Q&A: Question: How many voltages are batteries fit? Answer: This module is suitable for the voltage range of 6-60V, support 48V batteries maximally. Because the voltage of 48V batteries is about 60V when fully charging. The module will be burned if the voltage is more than that. Question: Why did the module not display after connecting the charger? Answer: Because module can display when it is powered by the battery, not display when the voltage is less than 6V. Question: The starting voltage is so low or the stop voltage is high. Answer: Because the limiting start value is less than the stop value. If you want to adjust the start value, you should adjust the stop the value first, vice versa. Question: The relay has a sound of flapping. Digital tube or indicator light is flashing. Answer: The charging current is too large or the battery capacity is too small. The voltage become the stop value when charging and do the starting value when discharging circularly. The output voltage of the charger is higher than setting stop voltage value . The voltage become the stop value when charging and the starting value when discharging circularly. If you do not believe please set the stop voltage value above 60V, use the charger corresponding to the battery, and usually the charging current is 1/10 or 1.5/10. Charging voltage is 1.2 times that of the battery. Question: What mode can control auto-cycle charge? Can it charge while using?Can the flow be limited ? Answer: This is voltage control. For example, set start voltage 12V, stop voltage 14.4V. When the battery charges to 14.4V, it stops charging; when the battery decreases to 12V, it begin to charging. It can charge while using. Module control mode is only controlled shut off and open, module can not limit flow. The charge current depends entirely on your charger current. Question: Can 12V battery charge 24V? Or can 48V battery charge 12V? Answer: No, module is to detect the battery voltage to control the switch, can't change the voltage to charge the battery. You have to choose the corresponding charger to the corresponding type of charging battery. Package Included: 1 x Charge Control Module