ST-E1250 PWM Solar Charge Controller – 50A Intelligent Solar Charging Solution for 12V/24V/48V Battery Systems
As solar energy adoption continues to grow worldwide, reliable battery charging and system protection have become essential for achieving maximum performance and long-term energy savings. The SUOER ST-E1250 PWM Solar Charge Controller is designed to provide efficient, intelligent, and safe charging management for a wide range of solar power applications.
Featuring 50A charging capacity, support for 12V, 24V, and 48V battery systems, an intuitive LCD display, and multiple protection functions, the ST-E1250 is an ideal choice for residential solar systems, RV installations, agricultural projects, telecommunications equipment, and off-grid energy storage solutions.
Why Choose the SUOER ST-E1250?
The ST-E1250 combines advanced PWM charging technology with intelligent battery management to maximize charging efficiency while protecting batteries from common electrical risks. Its versatile design allows users to deploy a single controller across various solar applications, reducing system complexity and installation costs.
Key Specifications
| Specification | Details |
|---|---|
| Model | ST-E1250 |
| Battery Voltage | 12V / 24V / 48V |
| Charging Current | 50A |
| USB Output | 5V / 2A |
| Charging Technology | PWM |
| Display | LCD Screen |
| Protection Functions | Multiple Intelligent Protections |
Powerful 50A Charging Performance
One of the standout features of the ST-E1250 is its high 50A charging current, allowing it to handle larger solar panel arrays and battery banks efficiently.
Benefits of 50A Charging Capacity
✔ Faster charging for larger battery systems
✔ Higher solar energy utilization
✔ Stable charging performance
✔ Reduced charging losses
✔ Suitable for demanding off-grid applications
Whether powering a home energy storage system or a remote solar installation, the ST-E1250 delivers dependable performance under various operating conditions.
Advanced PWM Charging Technology
The ST-E1250 utilizes intelligent Pulse Width Modulation (PWM) charging technology to optimize battery charging according to battery voltage and charging status.
Advantages of PWM Technology
Improves charging efficiency
Prevents battery overcharging
Reduces battery overheating
Enhances battery performance
Extends battery service life
The controller automatically adjusts charging parameters to ensure batteries receive the appropriate charging current at every stage.
Wide Voltage Compatibility
The ST-E1250 supports multiple battery voltages, providing flexibility for different solar system designs.
Solar Panel Input Voltage Range
12V Battery Systems
Input Voltage: 18V – 25V
24V Battery Systems
Input Voltage: 36V – 45V
48V Battery Systems
Input Voltage: 65V – 100V
This wide compatibility makes the controller suitable for residential, commercial, and industrial solar installations.
Built-In USB Output for Mobile Devices
The controller is equipped with a convenient 5V/2A USB output, allowing users to charge portable electronic devices directly from the solar system.
Suitable for:
Smartphones
Tablets
GPS Devices
Portable Lighting
Wireless Communication Equipment
This feature is particularly useful in remote locations where access to grid electricity is limited.
Real-Time LCD Monitoring
The integrated LCD display provides users with clear and accurate operating information.
Display Functions
Battery voltage status
Charging condition
Solar input status
Load connection information
System operating parameters
The user-friendly interface simplifies system monitoring and maintenance.
Comprehensive Safety Protection
Battery protection is critical to the reliability of any solar power system. The ST-E1250 incorporates multiple protection mechanisms to ensure safe operation.
Protection Features
✔ Overcharge Protection
✔ Over-discharge Protection
✔ Short Circuit Protection
✔ Reverse Polarity Protection
✔ Overload Protection
✔ Battery Voltage Protection
These intelligent protections help safeguard batteries and connected equipment, reducing maintenance costs and improving system longevity.
Residential Solar Energy Systems
The ST-E1250 is ideal for off-grid homes, backup power systems, and residential energy storage projects that require stable and efficient battery charging.
RV and Camper Solar Systems
For mobile power applications, the ST-E1250 provides dependable charging management for batteries used in RVs, camper vans, and motorhomes.
Agricultural Solar Projects
Solar-powered irrigation systems, farm lighting, and remote agricultural equipment can benefit from the controller's high charging capacity and robust protection features.
Telecommunications and Monitoring Stations
The ST-E1250 is suitable for telecom towers, surveillance systems, weather monitoring stations, and remote communication equipment.
Marine and Boat Applications
The controller can be used in boats, yachts, and marine energy systems where dependable battery charging is essential.
