EV6500-S Inverter Reliable, Flexible Power for Off-Grid and Backup Applications The Fortress Power EV6500-S is a next-generation off-grid solar storage inverter built for reliability, scalability, and intelligent energy control. Designed to handle both split-phase and single-phase loads, it delivers up to 6,500W continuous output and 13,000W peak output, making it ideal for off-grid living, home backup, microgrids, and peak shaving.
Equipped with time-based charging and discharging, generator/grid hybrid input, and intelligent switching, the EV6500-S gives homeowners and installers ultimate flexibility in managing energy consumption and production. Its high-capacity solar charge controller (up to 140A) ensures efficient solar harvesting, while support for up to six parallel units allows expansion up to 39kW of output power.
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.
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.
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.
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.
Scalable Up to 39kW- Parallel up to six EV6500-S units for a total output of 39kW, making it a powerful choice for large homes, small businesses, and off-grid compounds.
Versatile Application Support- Designed for a range of energy scenarios including Backup Power, Off-Grid Living, Peak Shaving, Net Metering, Smart Load Control, and Microgrid Installations—all in one rugged and intelligent package.
| GENERAL DATA |
| Weight | 47.84 lbs (21.7 kg) |
| Operating Temperature | 14 ºF – 131 ºF (-10 ºC – 55 ºC), >45 ºC derating |
| Protection Level | IP20 (for indoor use only) |
| Noise | <60db |
| Dimensions (W x D x H) | 25.5 x 16.1 x 5.5 in (648 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 Frrequency | 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 Current | 80 A DC* |
| Maximum Battery Charge Current | 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* |
| EFFICIENCY |
| MPPT Tracking Efficiency | 99.9% |
| Maximum Efficiency of Battery Inverter | 93% |
| STANDARDS & CERTIFICATIONS |
| Safety Standards | IEC62109-1, IEC62109-2, and UL1741 |
| EMC | EN61000-6-1, EN61000-6-3, and FCC 15 class B |
| RoHS | Yes |