EG4 Solar Charge Controller MPPT | 500VDC 100A | MPPT100-48HV

The EG4 MPPT100-48HV is a high-voltage (HV) MPPT solar charge controller designed for 48V battery systems, offering efficient energy conversion and flexible solar array design for off-grid and hybrid setups.

With a maximum PV input of 500VDC and up to 100A charging current, this controller allows you to run long, high-voltage strings, reducing the need for combiner boxes and minimizing wiring losses. It supports up to approximately 5,500W of solar input, making it ideal for medium-to-large battery charging applications.

The unit uses Maximum Power Point Tracking (MPPT) technology to continuously optimize the power harvested from solar panels, improving overall system efficiency (up to ~94%) and ensuring consistent battery charging performance.

It is specifically built for 48V lithium battery systems, with an adjustable charging range (~48–62V), and includes RS485 communication for integration with EG4 batteries and BMS systems.

For safety and ease of installation, the controller features built-in DC breakers for both PV input and battery output, reducing the need for additional external protection components.

Key Features:

• 500VDC max PV input (high-voltage string capability)

• 100A max charging current (adjustable)

• ~5.5kW usable solar input capacity

• Designed for 48V battery systems

• MPPT efficiency up to ~94%

• Built-in PV & battery breakers

• RS485 communication with EG4 batteries

• Low self-consumption (<25W)