Description
The Fortress Power eForce 9.6 is a cutting-edge, modular and stackable LFP battery module engineered to deliver reliable whole-home energy storage when paired with any Fortress Power Envy-series inverter, combining automotive-grade cell technology with a weatherproof, scalable design built for any environment.
Key Features:
- 9.6kWh Per Module — Stackable Up to 28.8kWh Per Unit and 268.8kWh Total: Expand vertically by stacking modules or scale horizontally by connecting up to 16 units in parallel for a fully customized, future-ready storage system.
- Tier-1 Prismatic 15-Cell LFP with 8,000-Cycle Life and Fast Charge Capability: Top-tier automotive industry cells deliver exceptional cycle longevity at 70% EOL capacity with the ability to fast charge without cell degradation.
- IP65-Rated Weatherproof Enclosure with Integrated Heaters: Built to withstand diverse weather conditions from -4°F to 140°F, with internal heating elements ensuring reliable cold-weather performance.
- Quick Plug Stackable Technology for Fast, Low-Labor Installation: The stackable design with quick plug connectivity dramatically reduces installation time and labor costs while maintaining a clean, professional appearance.
- Front LED Indicator and Backlight Status Display: Integrated front LED and backlight status indicator clearly display battery percentage, alarm status, and battery condition at a glance.
The Fortress Power eForce 9.6 redefines modular energy storage for the residential market. Its stackable architecture allows installers to start with a single 9.6kWh module and vertically expand to 28.8kWh on a single stack without any structural redesign, making it one of the most flexible and installer-friendly battery systems available today.
Designed to pair seamlessly with the Fortress Power eWay wireway enclosure featuring a built-in 750A busbar, the eForce 9.6 integrates cleanly into any Envy-series system for a complete whole-home energy solution. Its RS485, Wi-Fi, and CAN communication protocols ensure full closed-loop coordination with any paired Envy inverter for maximum charging and discharging efficiency, with a SGIP-rated system efficiency of 92%.
Certified to UL1973, UL9540, and UN38.3 transport safety standards and listed with CEC and LUMA, the eForce 9.6 is a fully compliant energy storage solution backed by a 10-year warranty — the ideal choice for homeowners and installers who demand performance, flexibility, and long-term reliability in every installation.
Technical Specifications
| Specification | eForce 9.6kWh |
|---|---|
| GENERAL | |
| Weight | 269 lbs |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Ingress Protection | IP65 |
| Communication | RS485 / Wi-Fi / CAN |
| Dimensions (W x D x H) | 30.89 x 9.08 x 33.79 in |
| Mounting Options | Ground-Mount, Floor Standing, Wall-Mounted (Separate Accessory) |
| Warranty | 10 Years |
| BATTERY | |
| Cell Type | Tier-1 Prismatic 15-Cell LFP |
| Maximum Units in Parallel | 16 |
| Nominal Capacity | 200 Ah |
| Nominal Energy | 9.6 kWh |
| Nominal Voltage | 48V |
| Re-charge Voltage | 46V |
| Cut-off Voltage | 42V |
| Operating Voltage Range | 39–54V |
| Bulk/Absorption Charge | 51.5V |
| Closed-Loop Charge/Discharge | 120/160 A |
| Open Loop Charge/Discharge | 100/100 A |
| Max Charge/Discharge | 195/195 A |
| Surge Discharge Power (10s) | 14,400W |
| Maximum Short-Circuit | 3000A, 5ms |
| SGIP-Rated Efficiency with Envy Inverter | 92% |
| Cycle Life @ EOL 70% | 8,000 Cycles |
| CERTIFICATIONS | |
| Safety Standards | UL1973, ANSI/CAN/UL9540:2023, UL9640A |
| Listings | CEC, LUMA, oGPE |
| Transportation | UN38.3 |
Specs & Info