800W Adjustable Step-Down Module MPPT Solar Charger Controller for Lithium/Lead-Acid Batteries Voltage Regulator Charging Board

Quantity : 1 High-concerned chemical : none Package : SOP is_d : Yes Supply Voltage : DC18-90V Type : Module Brand Name : DIY NOW Origin : Mainland China Condition : New

Product Features 1. Supports 18-90V wide voltage input, compatible with various solar panels, flexible and efficient. 2. Supports adaptive 5W-800W photovoltaic panels, meeting the power needs of different scenarios. 3. Output reverse current protection, with built-in high-current ideal diode function, can be used directly with a battery. 4. Daytime standby power consumption is approximately 0.9W, and nighttime automatic backflow prevention results in 0 power consumption. 5. Supports DC-DC regulated power supply output for direct load connection.

Product Parameters: Input Voltage: DC18-90V Output Voltage: DC2-60V Output Current: 0-25A Adjustable Automatic unattended charging of lithium batteries without activation Charging even on cloudy/rainy days, automatically charging when full and stopping automatically Automatic temperature control with fan cooling Can be used as a step-down, regulated, and adjustable power supply. This DC power module is a step-down controller. Considering the voltage drop of the photovoltaic panel wires and the low voltage of the photovoltaic panel on cloudy/rainy days, the open-circuit voltage of the photovoltaic panel must be higher than the 18V input when charging a 12V battery. Two 18V photovoltaic panels are connected in series: for example, 18V-72V charging 12V, 42V-80V charging 24V.

Debugging Method: 1. First connect the 16V-80V photovoltaic panel input (overvoltage input is prohibited, and pay attention to the positive and negative terminals). The power indicator light will illuminate when the wiring is correct. And if the output indicator light is on, skip directly to step 3. 2. If the power indicator light is on after connecting the input, but there is no output voltage, adjust the MPPT potentiometer counterclockwise until there is voltage output and the output indicator light is on. 3. Adjust the output to 14.2V when charging a 12V battery, 28.4V when charging a 24V battery, and 56V when charging a 48V battery. 4. Connect the battery and use a multimeter to test the input voltage. Adjust the MPPT potentiometer so that the input voltage is equal to the maximum power point voltage of the photovoltaic panel (that is, the photovoltaic panel's operating voltage). The open-circuit voltage of a single string of an 18V photovoltaic panel is about 21V, and the operating voltage is 18V; the open-circuit voltage of a single string of a 36V photovoltaic panel is about 43V, and the operating voltage is 36V; the open-circuit voltage of a single string of a 43V photovoltaic panel is about 49V, and the operating voltage is 43V. Different specifications of photovoltaic panels may vary; please refer to the factory default parameter settings printed on the back of the photovoltaic panel.

Output voltage is set to 14.2V, output current is set to 20A, adjustable range: 1-20A, MPPT voltage is set to 17V.

Packaging List: Module *1 label:yes