1. Introduction
This manual provides essential information for the safe and efficient operation of your EASUN POWER ICharger-MPPT-6048 Solar Charge Controller. This device is designed to manage the power flow from your solar panels to your battery bank, ensuring optimal charging and extending battery life. It features Maximum Power Point Tracking (MPPT) technology for enhanced efficiency and is compatible with 12V, 24V, 36V, and 48V systems, supporting various battery types including sealed lead-acid, vented gel, and lithium batteries.
2. Key Features
- 100% MPPT controller with Intelligent Maximum Power Point Tracking technology.
- Built-in DSP controller for high performance.
- Automatic battery voltage detection for 12V/24V/36V/48V systems.
- Peak current can reach 60A, with continuous and stable working current around 40A.
- Three-stage charging algorithm optimizes battery performance and longevity.
- Multi-function LCD display for easy monitoring and parameter adjustment.
- Equipped with reverse polarity protection for solar panels.
- Includes overcharge protection to safeguard batteries.
- Designed for easy mounting.
- Compatible with sealed lead acid, vented gel, and lithium battery types.
- Supports unlimited parallel connection for system expansion.
3. Safety Information
Please read and understand all instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or severe injury.
- Ensure all connections are tight and correct polarity is observed to prevent damage to the controller and other components.
- Always disconnect the solar panel and battery power before installing or adjusting the controller.
- Install the controller in a well-ventilated area, away from flammable materials and direct sunlight.
- Use appropriate circuit breakers or fuses for both the solar panel and battery circuits.
- Batteries can produce explosive gases; ensure adequate ventilation when working with batteries.
- Wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation.
- Professional installation is recommended for complex solar systems.
4. Product Overview
The EASUN POWER MPPT 60A Solar Charge Controller is a robust unit designed for efficient solar power management. Below are its main components and dimensions.



5. Setup and Installation
Proper installation is crucial for the performance and safety of your solar system. Follow these steps carefully.
5.1 Mounting
The controller is designed for easy mounting. Choose a location that is:
- Well-ventilated to allow for heat dissipation.
- Protected from direct sunlight, rain, and moisture.
- Close to the battery bank but not in the same enclosure to avoid exposure to battery gases.
- Accessible for wiring and maintenance.

5.2 Wiring Connections
Follow the wiring diagrams below. Always connect the battery first, then the solar panel, and finally the DC load. Ensure correct polarity for all connections.


5.3 Parallel Connection
The controller supports unlimited parallel connections for expanding your solar system capacity. When connecting multiple controllers in parallel, ensure that each controller is connected to its own set of solar panels and batteries, or to a common battery bank with appropriate balancing and protection.

6. Operating Instructions
The controller features an intuitive LCD display and four buttons for monitoring and configuration.
6.1 Button Functions
| Function Key | System Mode | Operation | Operation Indication |
|---|---|---|---|
| ENTER | View Mode | Long Press | Enter SET mode |
| UP | View Mode | Short Press | Screen page down |
| DOWN | View Mode | Short Press | Screen page up |
| ESC | View Mode | Short Press | - |
| ENTER | Setting Mode | Long Press | Exit from setting & saving the present settings data |
| ENTER | Setting Mode | Short Press | Enter the next setting page |
| UP | Setting Mode | Short Press | Adjust the parameter by increase the value |
| DOWN | Setting Mode | Short Press | Adjust the parameter by decrease the value |
| ESC | Setting Mode | Short Press | Exit SET Mode without saving data |
6.2 LCD Display and Parameter Settings
The LCD display allows you to monitor system status and configure various parameters. Use the buttons to navigate through the display pages and adjust settings.

Key parameters you can set include:
- Set1: BAT Type (Battery Type): Select GEL, SEL (Sealed), FLD (Flooded), USE (User-defined), or LI (Lithium).
- Set2: SYS Volt (System Voltage): Set to Auto, 12V, 24V, 36V, or 48V.
- Set3: EQU Charge Volt (Equalization Charge Voltage).
- Set4: BST Charge Volt (Boost Charge Voltage).
- Set5: FLD Charge Volt (Float Charge Voltage).
- Set6: BST_R Charge Volt (Boost Reconnect Charge Voltage).
- Set7: LDV Charge Volt (Low Voltage Disconnect Voltage).
- Set8: LRV Charge Volt (Low Voltage Reconnect Voltage).
- Set9: Load Mode (DC Load Control Mode).
6.3 Charging Modes
The controller utilizes a 3-stage charging process to optimize battery health:
- Constant Current (MPPT): The controller operates at the maximum power point of the solar array to deliver the highest possible current to the battery.
- Constant Voltage (Boost/Equalization): Once the battery reaches a certain voltage, the controller maintains a constant voltage while the current gradually decreases. Equalization charge is typically for flooded batteries.
- Floating Charge: When the battery is fully charged, the controller reduces the voltage to a lower level to maintain the battery at full capacity and prevent overcharging.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your solar charge controller.
- Inspection: Periodically check all wiring connections for tightness and signs of corrosion.
- Cleaning: Keep the controller's exterior clean and free of dust. Ensure the ventilation openings are not obstructed.
- Environment: Verify that the installation environment remains within the specified temperature and humidity ranges.
- Battery Check: Regularly inspect your batteries for any signs of damage, leakage, or swelling. Ensure battery terminals are clean.
8. Troubleshooting
If you encounter issues with your solar charge controller, consider the following common problems and solutions:
- No Display/No Power: Check battery connections and ensure the battery voltage is within the operating range. Verify that the battery circuit breaker is on.
- No Charging: Ensure solar panels are connected correctly and receiving sufficient sunlight. Check PV input voltage and current. Verify PV circuit breaker is on.
- Low Charging Current: This could be due to insufficient sunlight, dirty solar panels, or incorrect battery type settings. Check all connections and settings.
- Overcharge Protection Active: The controller will stop charging if the battery voltage exceeds the overcharge protection voltage. This is normal operation. Ensure your battery type settings are correct.
- Load Not Working: Check the DC load connections and ensure the load mode settings are correct. Verify that the battery voltage is above the low voltage disconnect (LDV) threshold.
For persistent issues, refer to the detailed specifications and ensure all components are correctly matched to your system requirements.
9. Specifications
Technical specifications for the EASUN POWER ICharger-MPPT-6048 Solar Charge Controller:
| Item | Parameter |
|---|---|
| Models | IChargerMPPT6048 |
| Charging Mode | 3-stage: constant current (MPPT), constant voltage, floating |
| System Voltage | 12/24/36/48V Auto |
| Max PV Input Power | 720W/12V; 1440W/24V; 2160W/36V; 2880W/48V |
| Max PV Input Voltage | 180Voc |
| Battery Voltage Automatic Recognition | 12V system (DC8.7V-DC15.5V); 24V system (DC16V-DC31V); 36V system (DC33V-DC41V); 48V system (DC42V-DC64V) |
| Overcharging Protection Voltage | 12V system (16V); 24V system (32V); 36V system (48V); 48V system (64V) |
| Limited Current Protection | 61A |
| Max Efficiency | ≥98.1% |
| PV Utilization | ≥99% |
| Auto Temperature Compensation | -3mV/2V/ºC |
| Protection Function | |
| Temperature Protection | 75℃ |
| Fan-on Temperature | >45℃ |
| Fan-off Temperature | <40℃ |
| Properties | |
| Size (mm) | 214x115x50 |
| Net Weight (Kg) | 1.1 |
| Gross Weight (Kg) | 1.2 |
| Electromagnetic Compatibility | Accord to EN61000, EN55022, EN55024 |
| Enclosure | IP21 |
| Environmental Temperature | -20℃ ~ +55℃ |
| Storage Temperature | -40℃ ~ +75℃ |
Battery Parameters (Default Values)
| Battery Type | System Volt | EQU | BST | FLD | BST_R | LRV | LDV |
|---|---|---|---|---|---|---|---|
| GEL | Auto | 14.2V | 14.2V | 13.8V | 13.2V | 12.6V | 12.0V |
| SEL (Sealed) | Auto | 14.6V | 14.4V | 13.8V | 13.2V | 12.6V | 12.0V |
| FLD (Flooded) | Auto | 14.8V | 14.6V | 13.8V | 13.2V | 12.6V | 12.0V |
| USE (User-defined) | Auto/12/24/36/48V | Defined by users | |||||
| LI (Lithium) | 12/24/36/48V | --- | Defined by users | ||||
10. User Tips
- This controller is versatile and can be used with both Lead Acid and Lithium Battery types. Ensure you select the correct battery type in the settings for optimal charging.
- For larger solar installations, multiple MPPT 60A controllers can be connected in parallel. This allows for system expansion beyond a single controller's capacity.
- While the peak current can reach 60A, the continuous and stable working current is approximately 40A. When sizing your system, consider this continuous rating for sustained performance.
11. Warranty and Support
The EASUN POWER MPPT 60A Solar Charge Controller comes with a 12-month warranty from the date of purchase, covering manufacturing defects. For technical support, troubleshooting assistance, or warranty claims, please contact your seller or the manufacturer directly.





