The Fortress Power Solo 6.5K is a powerful 6.5kW split/single-phase off-grid inverter designed to meet the demands of off-grid homes, backup power systems, and hybrid solar storage applications. With dual MPPT inputs, a built-in 140A solar charge controller, and support for grid or generator input, the Solo 6.5K offers flexible and reliable energy management.
Easily scale up to 39kW by connecting up to six units in parallel. Ideal for smart energy usage, it includes advanced time-of-use scheduling, optional current transformers (CTs) for improved load control, and high solar input support (up to 10kW total). Designed for seamless operation during outages, the Solo 6.5K supports lithium-ion, lead-acid, and user-defined battery types at 48V.
Key Features:
6,500W continuous output power (13,000W peak)
120/240V split/single-phase output with pure sine wave
Built-in 140A solar charge controller
Dual MPPT channels (2x 5,000W input)
Compatible with grid/generator input for hybrid use
Scalable to 39kW (parallel up to 6 units)
48V battery compatibility
Intelligent time-of-use scheduling
Optional CTs for load control
Indoor use (IP20-rated), quiet operation (<60dB)
Applications: Backup power | Off-grid homes | Peak shaving | Microgrids | Smart load control | Net metering
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