MPPT Solar Controller(White)-High-frequency MPPT solar charge controller-Dongguan Hongyi Electric Products Co., Ltd.

MPPT Solar Controller(White)

Product Brief: An MPPT Solar Controller (full name: Maximum Power Point Tracking Solar Controller) is an advanced electronic device used in photovoltaic (PV) systems to optimize the power transfer from solar panels to batteries or loads. It is a core component in off-grid, hybrid, and solar-charging setups, widely recognized as a high-efficiency alternative to traditional PWM (Pulse-Width Modulation) solar charge controllers.

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Description

Parameter Name	30A / 40A	50A / 60A	100A / 120A
MPPT Model	30A / 40A	50A / 60A	100A / 120A
Charging Mode	MPPT Automatic Maximum Power Point Tracking
Charging Method	MPPT Tracking, Fast Charge, Equalizing Charge, Float Charge
Battery Type (Lead-acid)	12V/24V/36V/48V/96V Auto + Adjustable (12V-96V)
Battery Type (Gel)	12V / 24V / 36V / 48V / 60V / 72V / 84V / 96V
Battery Type (LiFePO4)	Nominal $3.2V imes$ series (adjustable from 2 to 45 series)
Battery Type (Li-ion)	Nominal 3.7V imes series (adjustable from 2 to 45 series)
Battery Type (User-defined)	Equalizing, Float, DC Discharge Limit (Adjustable: 8V - 170V)
Lithium Activation	PV input triggers charging voltage (activates lithium battery)
Max PV Input Voltage	0V – 230V
Adjustable Charge Current	0 – 30A / 0 – 40A	0 – 50A / 0 – 60A	0 – 100A / 0 – 120A
Start Charging Condition	PV Voltage > Battery Voltage + 3V (allows low current charging in rain)
DC Load Output Function	Continuous 25A	Continuous 60A	Continuous 100A
Temp. Compensation	Auto-adjustment of voltage/current based on battery temp
Display (LCD)	Touch keys; shows Power, PV/Battery Voltage, Current, Status
Communication	8-pin RS485 Interface (for status monitoring and settings)
Working Temperature	-20°C to 40°C
IP Protection Rating	IP21
Max Altitude	0 – 3000m
Product Dimensions	202 x 215 x 100 mm	218 x 265 x 100 mm	218 x 265 x 100 mm

Product features:

1. It comes with a battery activation function.

2. Manually adjust the output voltage in three stages, or intelligently adjust the output voltage from 12-96V.

3. Supports more than 4 types of batteries (gel batteries, lithium iron phosphate, lithium batteries, etc.)

4. Supports WiFi plug-ins and allows users to view the machine's operating status through an app.

5. Equipped with a large screen display, it can generate electricity even on rainy days.

FAQs

How to Choose the Right MPPT Controller Size?

Calculate the required charging current using this formula:

Charging Current (A) = Total PV Wattage (W) ÷ Battery Voltage (V) × 1.25 (Safety Factor)

Example: 800W PV array + 48V battery bank → 800 ÷ 48 × 1.25 = 20.8A → Choose a 20A or 30A controller.
Also, ensure the PV open-circuit voltage (Voc) does not exceed the controller's maximum PV input rating.

What is the Correct Wiring Order?

To avoid damage, follow this sequence strictly:

Connect the Battery first (positive to positive, negative to negative).
Connect the Solar Panels (PV input).
Connect the Load (optional).
Note: Use appropriately sized cables and fuses for safety.

Why is My Controller Not Charging?

PV Voltage Too Low: Ensure the solar panel voltage is at least 5V higher than the battery voltage.
Wiring Issues: Check for reversed polarity, loose connections, or blown fuses.
Battery Full: The controller will taper or stop charging once the battery is full.
Over-temperature Protection: The controller may reduce current if it gets too hot.

What is Temperature Compensation?

A built-in sensor adjusts the charging voltage based on battery temperature. It prevents overcharging in hot weather and undercharging in cold weather, significantly extending battery life.

What is an MPPT Solar Charge Controller?

MPPT (Maximum Power Point Tracking) is an advanced technology that continuously monitors the voltage and current output from solar panels, dynamically adjusting the operating point to extract the maximum available power under varying light conditions. It efficiently converts high PV voltage to the battery’s charging voltage, significantly boosting energy harvest compared to traditional PWM controllers.

MPPT Solar Controller(White)

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