EG4 MPPT100-48HV 500V 100A Solar Charge Controller 48V

The EG4 MPPT100-48HV is a high-voltage, high-efficiency MPPT solar charge controller built for serious solar installations. Drawing on proven technology from the EG4 3kW All-in-One Solar Inverter, it delivers reliable, intelligent solar harvesting for new builds and existing system upgrades alike.

With a 500V max open-circuit voltage and 100A max charging current, this controller handles large PV arrays without the need for combiner boxes — keeping your setup clean, simple, and cost-effective.

• 500V max open-circuit voltage — supports high-voltage PV string configurations
• 100A max charging current — adjustable from 0A to 100A (default 80A) for tailored charge management
• 5,500W max usable PV power — combine two strings via a branch connector for expanded capacity
• 94% max charge efficiency — maximizes energy harvest from your panels
• Less than 25W self-consumption — minimal parasitic draw on your system
• 22A max PV string current per string input
• 48V nominal battery voltage — 48–62VDC charging range (default 56VDC)
• Built-in PV DC disconnect and battery breakers — added protection without extra hardware
• RS485 BMS communication port — enables direct communication with EG4 batteries when used alongside non-EG4-compatible inverters
• Charges a 5.12kWh EG4 battery in approximately 1 hour at 100A output

Recommended for long-term battery health: operate at 80A total, or 30A per battery. Whether you're expanding an off-grid system or optimizing a grid-tied backup setup, the MPPT100-48HV offers a straightforward path to smarter solar charging.