eForce Stackable Whole-Home Energy Storage System
Building upon the success of our 48V lithium product family, the eForce is a cutting-edge, modular, and stackable battery system. When paired with the Fortress Power Envy Inverter, it forms a seamless whole-home energy storage solution, providing reliable backup power and energy independence.
Highlights:
- Top tier lithium cells rated for 8000 cycles / 20-year design life
- Scales from 9.6kWh to 153kWh per system
- Clean, streamlined and flexible installation
- All-weather design – IP65
- Seamless integration with the Fortress Power Envy Inverter for a whole-home energy storage solution
- eWay – Integrated wireway and busbar per stack
- Engineered for advanced and dependable energy storage, with a user-friendly design suited for various applications
Tailored for those seeking advanced and reliable energy storage, while maintaining user-friendly installation and usage in diverse applications.
* Please note, the eForce does NOT come with a wall mount bracket.
Energy Freedom, Power for All Conditions
The eForce batteries are modular, stackable LFP lithium units with 9.6kWh each, designed for all-weather use with built-in temperature-controlled heating. Up to three batteries can be stacked using the wireless quick plug, enabling effortless, cable-free connections. For larger systems, up to 16 batteries can be linked side by side, creating a powerful 153kWh energy storage solution.
Each stack connects via the eWay, an integrated wireway featuring built-in busbars, conduit ports, an emergency switch, and real-time status LEDs for streamlined connectivity. The Envy True 12kW inverter bolts directly onto the eWay, forming a sleek, all-in-one energy storage tower.
Together, the eForce battery system, eWay, and Envy Inverter create a fully integrated whole-home energy storage solution, delivering reliable backup power, enhanced energy efficiency, and effortless scalability for diverse applications.
Key Features
Top Tier Automotive industry Cells:Â Up to 8000 cycles and ability to fast charge without cell degradation.Â
Large cost savings by eliminating additional system components: This system reduces overall costs by removing the need for extra components such as wireways, extra conduit and long cable conductors resulting in significant savings.
Superfast install with stackable design: The stackable design enables quick and easy installation with quick plug technology, reducing labor time and costs.
Extended 30-Year Warranty Option: Fortress Power offers an optional 30-year extended warranty, providing long-term reliability and peace of mind for homeowners and businesses.
All-weather design: With integrated heaters and an IP65 rating, this system is built to withstand diverse weather conditions, ensuring durability, reliability
Clean, streamlined, and flexible installation: The installation process is efficient and flexible, providing a neat, aesthetically pleasing setup while still meeting the NEC and NFPA Code.
Easy to scale: The modular, stackable design offers effortless scalability, allowing you to expand vertically up to 28.8kWh and 153kWh in total as needed.
Virtual Power Plant (VPP) Ready: The eForce battery system is approved for select Virtual Power Plant (VPP) programs nationwide, allowing users to earn incentives while supporting grid stability.
Reduce Install Time & Save System Component Cost
Clean, Streamlined, Flexible Install and Easy to Scale
Monitor and control your eForce Anywhere and Anytime!
✅ Monitor Performance of Each Battery
✅ Update Firmware Over The Air
✅ Participate in Virtual Power Plant ProgramsÂ
Video Library
Make your home your Fortress with Uninterrupted Clean Power
Solar Energy, Grid Energy, Battery Storage, Generators and More.
Seamlessly integrating with our Fortress Power Envy Inverters, the eForce batteries enhance your system’s performance. Perfect for both home and business. Whether you’re seeking to reduce your environmental impact, energy costs, or rely on a steady power supply during outages, the eForce is your go-to solution. Make the smart switch to a greener, more efficient energy system today with our innovative battery technology.
For firmware updates and details about firmware releases, please visit our Firmware Support Page
| 9.6 kWh | 19.2 kWh vertical | 19.2 kWh horizontal | 28.8 kWh vertical | 28.8 kWh horizontal | |
| Battery Parameters | |||||
| Maximum Units In Parallel | 16 | 8/16 | 5/16 | ||
| Cell Type | Tier-1 Prismatic 15 Cell LF | ||||
| Nominal Capacity | 200Ah | 2*200Ah | 3*200Ah | ||
| Nominal Energy | 9.6KWh | 19.2KWh | 28.8KWh | ||
| Operating Voltage Range | 39~54V | 39~54V | 39~54V | ||
| Nominal Charge/Discharge (A) | 120/160 | 240/250 | 240/320 | 250/250 | 360/480 |
| Open Loop Charge/Discharge (A) | 100/100 | 100/100 | 200/200 | 100/100 | 300/300 |
| Bulk Absorption Charge (V) | 51.5V | ||||
| Open Loop/Closed Loop (V) | 51.5V | ||||
| Max Charge/Discharge (A) | 195/195 | 250/250 | 390/390 | 250/250 | 585/585 |
| Surge Discharge Power W (10s) | 14,400 | 14,400 | 28,800 | 14,400 | 43,200 |
| Cycle Life @ EOL 70% | 8000 | ||||
| General Data | |||||
| Ambient Temperature Range | -4-140°F (-20-60°C) | ||||
| Ingress Protect Degree | IP65 | ||||
| Communication | RS485/Wi-Fi/CAN | ||||
| Weight | 249 Ibs (112.9 kg) | 465 Ibs (210.9 kg) | 681 Ibs (308.9 kg) | ||
| Dimension (W*D*H) (mm) | 24.4x9.4x33.5 in (620x240x851 mm) | 24.4x9.4x53.1 in (620x240x1351 mm) | 24.4x9.4x72.9 in (620x240x1851 mm) |
||
| Warranty | 10 years | ||||
| Standard & Certification | |||||
| Safety Standard | UL1741, UL1973, UL9540/A DC ESS | ||||
| EMC | IEEE1547, FCC, SDOC | ||||
| Grid Standards | IEEE1547 | ||||
| Transportation | UN38.3 | ||||
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Related Products
The Fortress Power eForce 9.6kWh Battery plays nicely with the following products
Envy True 12 Inverter
True 12kW Whole Home Solar Storage Inverter
Envy 8k / 10k Inverter
8k / 10k Whole Home Solar Storage Inverters
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