Utilizing technology from the EG4 3kW All-in-One Solar Inverter, the EG4 MPPT100-48HV is a simple, affordable, and reliable MPPT (Maximum Power Point Tracking) solar charge controller designed to enhance your solar power system.
Optimized Solar Harvesting
The EG4 MPPT100-48HV extracts the maximum power from your PV modules and efficiently converts it to a lower voltage for charging your battery bank. Whether upgrading an existing system or building a new one, this charge controller increases solar harvesting potential.
Key Features & Specifications
Powerful MPPT Voltage Range – No need for combiner boxes
Max Open-Circuit Voltage: 500VDC
Max Usable PV Array Power: 5500W (with 2-string branch connector)
Max PV String Current: 22A
Max Charging Current: 100A (adjustable 0A-100A, default 80A)
Fast Charging: Capable of charging a 5.12kWh EG4 battery in ~1 hour @ 100A
Recommended Usage: 80A total or 30A per battery to maximize lifespan
Battery & Charging
Nominal Battery Voltage: 48V
Charging Voltage Range: 48-62VDC (default 56VDC)
Built-in Protection & Efficiency
Integrated Breakers:
PV array DC disconnect breaker
Built-in battery breaker for added safety
High Efficiency:
94% max charge controller efficiency
Less than 25W self-consumption
Smart Communication
The MPPT charger communicates with EG4 batteries via its RS485 BMS port, even when using non-EG4 compatible inverters.
What is an MPPT Charge Controller?
An MPPT (Maximum Power Point Tracker) is a DC-to-DC converter that optimizes energy transfer from the solar panels to the battery bank. It efficiently reduces the high-voltage DC output from solar panels to the consistent voltage required for battery charging.