EG4 Solar Charge Controller MPPT MPPT100-48HV 100A Output

EG4 MPPT100-48HV – 100A High-Voltage Solar Charge Controller with MPPT Technology

Built using advanced technology from the EG4 3kW All-in-One Solar Inverter, the EG4 MPPT100-48HV is a high-performance Maximum Power Point Tracking (MPPT) solar charge controller designed to maximize energy harvesting, improve charging efficiency, and extend battery life. Affordable, reliable, and easy to integrate, it’s the perfect upgrade for both new and existing solar power systems.

The MPPT100-48HV optimizes the power output from your PV array, converting high-voltage DC into the precise charging voltage your battery bank needs. This allows you to capture more solar energy without the need for expensive combiner boxes, while providing built-in safety and communication features for a seamless installation.

Key Features & Specifications:

• Wide MPPT Voltage Range – Powerful PV array tracking without combiner boxes

• Max PV Input Voltage: 500V DC

• Max PV Array Power: 5,500W when combining two strings via branch connector

• Max PV String Current: 22A

• Max Charging Current: 100A (adjustable from 0–100A, default 80A) for fast battery charging

• High Charging Capability: Charge a 5.12 kWh EG4 battery in ~1 hour at 100A

• Battery Voltage: 48V nominal (48–62V DC charging range, default 56V DC)

• Built-in Protection: Integrated PV array DC disconnect breaker & battery breaker

• Efficiency: Up to 94% with less than 25W self-consumption

• BMS Communication: RS485 port enables communication with EG4 batteries, even when using non-EG4 inverters

Recommended Use:

• 80A total charging or 30A per battery for optimal battery lifespan

• Ideal for off-grid, hybrid, and grid-tied solar systems needing additional charging capacity

What is an MPPT Charge Controller?
An MPPT (Maximum Power Point Tracker) is a DC-to-DC converter that optimizes the transfer of power from solar panels to batteries. It adjusts the higher, variable voltage from the solar array down to the consistent, lower voltage required for battery charging—ensuring you get the maximum possible energy from your solar investment.