Fortress Power Solo 6.5kW Inverter
SPLIT / SINGLE-PHASE SOLAR STORAGE INVERTER
OVERVIEW
Reliable, Flexible Power for Non-Export Applications
The Fortress Power Solo 6.5kW is a versatile 6.5kW split/single-phase inverter designed for backup power, off-grid, and grid-tied applications. With support for both grid and generator input, a built-in 140A solar charge controller, and intelligent switching, it delivers reliable performance in any environment. Time-of-use scheduling, optional CTs for added safety, and parallel support for up to six units (39kW) make it ideal for off-grid homes, microgrids, and hybrid solar systems.
FEATURES
That Maximize Performance, Flexibility, and Control
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High-Capacity Solar Charging
The built-in solar charge controller supports up to 140A, maximizing solar input for faster, more efficient battery charging—ideal for large off-grid systems or high-usage households.
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Dual Power Source Compatibility
Supports grid and generator input with intelligent switching, giving you seamless power management and uninterrupted operation during outages or low solar production.
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Time-of-Use Optimization
Advanced time-sharing functionality allows users to schedule charge and discharge cycles, optimizing energy usage and reducing reliance on expensive utility rates.
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Safe & Stable Operation with Optional CT
Optional current transformers (CTs) enhance system safety and reliability by monitoring current flow and enabling precise load control and protection.
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Scalable Up to 39kW
Parallel up to six units for a total output of 39kW, making it a powerful choice for homes and off-grid or grid-tied applications.
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Versatile Application Support
Designed for a range of energy scenarios including Backup Power, Off-Grid Living, Smart Load Control, and Microgrid Installations—all in one rugged and intelligent package.
Applications
- Backup
- Off-Grid
- Grid-Tied
- Microgrid
- Self-Consumption
- Generator
Specifications
Summary
- Rated Output Power: 6,500W
- Max. Output Power: 13,000W
- Rated Output Voltage: 120/240 Vac (single/split-phase)
- Frequency: 50/60Hz
- Rated Battery Voltage: 48V
- Max. Input Short Circuit Current: 18A+18A
- No. of MPPT: 1+1
Technical Data
| GENERAL DATA | |
|---|---|
| Weight | 47.84 lbs (21.7 kg) |
| Operating Temperature | 14 °F - 131 °F (-10 °C - 55 °C), >45 °C derating |
| Protection Level | IP20 (for indoor use only) |
| Noise | <60db |
| Dimensions (H x W x D) | 27 x 16.1 x 5.5 in (686 x 410 x 140 mm) |
| Cooling Mode | Fan |
| INVERTER OUTPUT | |
|---|---|
| Rated Output Power | 6,500W |
| Maximum Peak Power | 13,000 VA |
| Rated Output Voltage | 120/240 VAC (Single/Split-Phase)* |
| Rated Frequency | 50/60Hz* |
| Output Wave | Pure Sine Wave |
| Switching Time | 10 ms (typical value) |
| Parallel Number | 6 |
| BATTERY PARAMETERS | |
|---|---|
| Compatible Battery Type | Lithium-ion battery / lead-acid battery / user- defined battery* |
| Rated Battery Voltage | 48 Vdc |
| Voltage Range | 40 Vdc-60 Vdc* |
| Maximum Grid/Generator Charge Power | TBD |
| Maximum Battery Charge Power (with PV) | 140 A DC* |
| PV INPUT | |
|---|---|
| MPPT Channel Number | 2 |
| Maximum Input Power | 5,000W+5,000W |
| Maximum Input Short Circuit Current | 18/18 A |
| Maximum Open Circuit Voltage | 550 Vdc / 550Vdc |
| MPPT Operating Voltage Range | 150 Vdc-450 Vdc |
| GRID / GENERATOR INPUT | |
|---|---|
| Input Phase Voltage Range | 65 VAC - 140 VAC |
| Grid Frequency Range | 50/60 Hz |
| Bypass Overload Current | 40A |
| COMMUNICATION | |
|---|---|
| Built-in Interface | RS485 / CAN / USB / dry contact* |
| External Module (Optional) | Wi-Fi / GPRS* |
STANDARDS & CERTIFICATIONS
| Category | Details |
|---|---|
| Safety Standards | IEC62109-1, IEC62109-2, and UL1741 |
| EMC | EN61000-6-1, EN61000-6-3, and FCC 15 class B |
| RoHS | Yes |
EFFICIENCY
| Metric | Value |
|---|---|
| MPPT Tracking Efficiency | 99.9% |
| Maximum Efficiency of Battery Inverter | 93% |
Visual Description
The product is a Fortress Power Solo 6.5kW inverter. The accompanying image shows the unit's front panel, which features a display screen and control buttons. It also provides a view of the internal components accessible from the front, including various circuit breakers labeled for grid, generator, and battery connections.
