EPEVER TEP8425 solar MPPT controller 80A 12/24/48 V input 250V

EPEVER TEP8425 — High-Performance MPPT Controller for Photovoltaics

Managing charging in professional solar systems requires a top-tier solution that maximizes efficiency and reliability. The MPPT controller EPEVER TEP8425, with a charging current of 80 A and support for system voltages of 12/24/48 V, optimizes the use of solar panels thanks to a maximum input voltage of 225 V at 25 °C and an MPPT range of up to 180 V. With a tracking efficiency of 99.5% and a maximum conversion efficiency of 98.3%, this controller ensures minimal energy losses. Its compact design and wide connectivity options make it an ideal choice for advanced photovoltaic installations.

Optimizing Solar System Performance

MPPT (Maximum Power Point Tracking) technology enables maximum power extraction from solar panels even under changing light conditions. With an MPPT voltage range from 20 V (minimum) to 180 V at 25 °C, it consistently enhances system efficiency. Support for PV open-circuit voltage up to 250 V ensures compatibility with a wide range of panels, simplifying design and installation.

Flexible Battery Support

The controller is designed to work with various battery types, including AGM, gel, flooded, and lithium (LiFePO4, NCM). A three-stage charging algorithm optimizes performance for each battery type, while the temperature compensation function (-3 mV/°C/2 V) protects batteries from overcharging or undercharging. For advanced installations, custom charging parameter settings are available.

Scalability and Parallel Operation

For larger systems, the integrated CAN port allows parallel connection of up to six controllers, increasing the total charging current. This system is flexible and can operate with connected batteries or in a direct load power supply mode without batteries. This is ideal for projects where scalability and adaptability are priorities.

Advanced Monitoring and Connectivity

Thanks to the isolated RS-485 interface, the controller can be expanded with Bluetooth, Wi-Fi, TCP, or 4G modules for remote monitoring and management. The integrated RJ-45 port (5 V DC / 200 mA) enables connection to external communication devices, ensuring real-time operational data, event logging, and performance analysis.

Electrical Specifications

• Rated charging current: 80 A
• Maximum power: 1040 W / 2080 W / 4160 W (depending on system voltage)
• Battery voltage: 12/24/48 V DC (automatic detection)
• PV open-circuit voltage: up to 250 V (at the lowest temperature)

Mechanical and Environmental Features

• Dimensions: 357 × 200 × 90 mm
• Weight: 4.51 kg
• Operating temperature: -25 °C to +60 °C
• Protection rating: IP20
• Maximum altitude: 5,000 m (with derating above 2,000 m)

This controller is designed for professional applications where reliability, performance, and easy integration into larger systems are essential.