1. Introduction
Thank you for choosing the MakeSkyBlue Upgraded V124 80A MPPT Solar Charge Controller. This device is designed to efficiently manage power from your solar panels to charge various battery types, including Lithium, Sealed Lead Acid, and Vented Gel batteries, in 12V, 24V, or 48V systems. It utilizes Maximum Power Point Tracking (MPPT) technology to ensure optimal energy harvesting from your solar array. This manual provides essential information for the safe and effective installation, operation, and maintenance of your solar charge controller.
2. Key Features
- Advanced MPPT Technology for maximum power harvesting.
- Automatic 12V/24V/48V system voltage recognition.
- 3-stage smart charging (Constant Current, Constant Voltage, Floating Charge).
- Compatible with multiple battery types: Lithium, Sealed Lead Acid, Gel, NiCd (user-defined voltage).
- Smart LCD display for real-time monitoring and error indication.
- Integrated error cooling system with fan-on/off temperature control.
- Comprehensive protection features including overcharging, over-voltage, under-voltage, over-current, and reverse polarity.
3. Specifications
| Feature | Specification |
|---|---|
| Model No. | 80A-V124 |
| Charging Technology | MPPT / Maximum power point tracking |
| Charging Mode | 3-stage: Constant current (MPPT), Constant voltage (Absorption voltage), Floating charge |
| System Type | DC12V/24V/48V Recognition automatically |
| Automatic Select Voltage Range | 12V system (DC9V-DC15V), 24V system (DC20V-DC30V), 48V system (DC40V~DC60V) |
| Soft Start Time | ≤1S |
| Dynamic Response and Recovery Time | 100us |
| Max Efficiency | ≥98.2% |
| PV Utilization | ≥99% |
| Self Consumption | ≤1.2W |
| Input Specification | |
| Voc Range of PV | 12V system (DC20V~DC150V), 24V system (DC37V~DC150V), 48V system (DC72V~DC160V) |
| Maximum PV Module Open Circuit Voltage | For 12V battery: 150V, For 24V battery: 150V, For 48V battery: 160V |
| The Maximum Nominal PV power | 12V system (1220W), 24V system (2400W), 48V system (4800W) |
| Output Specification | |
| Selectable Battery Type | Vented/Sealed/Gel/NiCd battery (Defined voltage by user) |
| Absorption Charging Voltage | Refer to the manual (User-defined: 12V-17V for 12V, 24V-34V for 24V, 48V-68V for 48V) |
| Floating Charging Voltage | Refer to the manual |
| Overcharging Protection Voltage | 12V system (15V), 24V system (30V), 48V system (60V) |
| Rated Output Current | 80A |
| Output Voltage Ripple-peak | 100mV |
| Output Voltage Accuracy | ≤±1% |
| Indicating | |
| LCD | Refer to the manual |
| Protection Function | |
| Temperature Protection | 75 °C / 167℉ |
| Fan-on Temperature | >45 °C / 113℉ |
| Fan-off Temperature | <40 °C / 104℉ |
| PV Reverse Polarity Protection | Yes (When Voc<100V only) |
| PV Over-voltage Protection | Yes (When Voc>180V, the controller will be burnt.) |
| Battery Overcharge Current Protection | Yes |
| Battery Overcharge Voltage Protection | Yes |
| Battery Low Voltage Protection | Yes |
| Enclosure | |
| Acoustic Noise | ≤40dB |
| Cooling Way | Forced air cooling |
| Components | Industrial grade |
| Size (cm) | 21.5*11.5*6cm / 8.46*4.52*2.35 in |
| Net Weight(Kg) | 1.13kg / 2.49lb |
| Gross Weight(Kg) | 1.3kg / 2.87lb |
| Safety | EN 62109-1 EN 60730-1 EN IEC 61000-6-3 EN IEC 61000-6-1 |
| Protection Category | IP21 |
| Environmental Condition | Indoor |
| Operating Temperature | -20℃ ~ +55℃ / -4℉ ~ + 131℉ |
| Storage Temperature | -40℃ ~ +75℃ / -40℉ ~ + 167℉ |
4. Setup and Installation
4.1 Safety Precautions
- Ensure all connections are secure and correct polarity is observed.
- Install the controller in a well-ventilated, indoor environment, away from direct sunlight, high temperatures, and moisture.
- Do not exceed the maximum PV input voltage (Voc) specified for your battery system. Exceeding 180V Voc can damage the controller.
- Always connect the battery first, then the solar panels. Disconnect in reverse order.
4.2 Wiring Instructions
- Connect the Battery: Connect the positive and negative terminals of your battery bank to the corresponding battery terminals on the solar charge controller. Ensure a secure connection. The controller will automatically detect the system voltage (12V, 24V, or 48V).
- Connect the Solar Panels (PV Array): Connect the positive and negative leads from your solar panel array to the corresponding PV input terminals on the solar charge controller.
Important: Ensure the open circuit voltage (Voc) of your PV array is within the specified range for your battery system. For optimal efficiency, the Voc should be 1.5 to 2 times the battery voltage. Never exceed the maximum PV Voc (150V for 12V/24V systems, 160V for 48V systems).
5. Operating Instructions
5.1 Automatic System Voltage Recognition
Upon initial connection to the battery, the controller will automatically detect and set the system voltage (12V, 24V, or 48V).
5.2 3-Stage Smart Charging
The controller employs a 3-stage charging algorithm to optimize battery health and lifespan:
- Constant Current (MPPT): In this stage, the controller extracts maximum power from the solar panels to rapidly charge the battery.
- Constant Voltage (Absorption Voltage): Once the battery reaches a certain voltage, the controller switches to constant voltage mode, maintaining a steady voltage to fully charge the battery without overcharging.
- Floating Charge: After the battery is fully charged, the controller reduces the voltage to a lower 'float' level to maintain the battery at full capacity and compensate for self-discharge.
5.3 Battery Type and Voltage Settings
The controller supports various battery types. For Vented, Sealed, Gel, and NiCd batteries, you can define the voltage settings. For example:
- For a 12V battery system, you can set the voltage from 12V to 17V.
- For a 24V battery system, you can set the voltage from 24V to 34V.
- For a 48V battery system, you can set the voltage from 48V to 68V.
Refer to the detailed instructions in the included physical manual for specific steps on how to adjust these settings via the LCD interface.
5.4 LCD Display
The smart LCD display provides real-time information about the system status, including battery voltage, charging current, PV input, and error codes. Use the control buttons (UP, DOWN, ENTER) to navigate through the display menus and adjust settings as needed. Detailed navigation instructions are provided in the comprehensive manual.
6. Maintenance
- Regular Inspection: Periodically check all wiring connections for tightness and corrosion.
- Cleaning: Keep the controller's exterior clean and free from dust. Ensure the ventilation openings are not obstructed to allow for proper airflow.
- Ventilation: The controller uses forced air cooling. Ensure it is installed in an area with adequate ventilation to prevent overheating. The fan will activate when the internal temperature exceeds 45°C (113°F) and turn off below 40°C (104°F).
- Battery Health: Monitor your battery bank's health and ensure it is properly maintained according to the battery manufacturer's guidelines.
7. Troubleshooting
The controller's LCD display will show error codes to indicate specific issues. Refer to the table below for common error codes and their meanings:
| Error Code | Description | Possible Solution |
|---|---|---|
| E1 | PV input Under-voltage | Check solar panel connections and ensure sufficient sunlight. |
| E2 | PV input Over-voltage | Verify PV array configuration; ensure Voc does not exceed controller limits. |
| E3 | Battery Over-voltage | Check battery voltage and charging settings. |
| E4 | Battery Under-voltage | Charge battery or check battery health. |
| E5 | Over-current Protection | Reduce load or check for short circuits in the system. |
| E6 | Over-temperature Protection | Ensure proper ventilation; check fan operation. |
| E7 | PV input Over-voltage | Similar to E2, check PV array configuration. |
| E8 | Output Short-circuit | Identify and resolve any short circuits in the output wiring. |
8. User Tips
- Optimal PV Voltage: For the best efficiency, ensure the Open Circuit Voltage (Voc) of your solar panels is approximately 1.5 to 2 times the nominal voltage of your battery bank.
- Avoid Over-voltage: Always double-check that the PV array's Voc does not exceed the maximum allowed voltage for the controller (150V for 12V/24V, 160V for 48V). Exceeding 180V can cause permanent damage.
- Manual Included: The product comes with a detailed instruction manual. Please refer to it for specific settings and advanced operations not covered in this overview.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the manufacturer or your point of purchase. Ensure you have your model number (80A-V124) and purchase details available when seeking support.
