Fortress Power eForce 9.6kWh LFP Battery

The Fortress Power eForce 9.6 kWh is a modular, stackable Lithium Iron Phosphate (LFP) battery designed for flexible residential energy storage. It serves as the foundational “building block” of the eForce system. A single 9.6 kWh module, when paired with the required eWay control unit and base, forms a complete, IP65-rated battery system that is perfect for smaller backup needs or outdoor installations.

Product Specifications

• Voltage Range: 39V – 54V

• Max Continuous Current: 195 A (Charge/Discharge)

• Surge Power: 14.4 kW (10 seconds)

• Round Trip Efficiency: > 98%

• Communication: CAN / RS485 / Wi-Fi

• Cycle Life: 8,000 Cycles (@ 80% DoD)

Why Choose eForce 9.6kWh

The eForce 9.6 is the perfect entry point for homeowners who want a high-quality, outdoor-rated battery but don’t initially need massive capacity. It allows you to start small—powering essential circuits like lights, internet, and fridges—and easily expand later. By simply “clicking” another 9.6 kWh module on top in the future, you can double or triple your storage without rewiring the entire system.

Benefits of eForce 9.6kWh

• Start Small, Dream Big: Provides a lower upfront cost by allowing you to buy only the storage you need now (9.6 kWh) while retaining the ability to stack up to 28.8 kWh vertically in the same footprint.

• Outdoor Freedom: With an IP65 weatherproof rating and integrated heating, it can be installed on an outdoor pad or in an unconditioned garage, saving precious interior space.

• Cable-Free Safety: The module connects to the eWay controller using internal plugs, eliminating dangerous and messy external battery cables found on other systems.

• Smart & Secure: The included eWay top unit manages the battery health and provides a secure, lockable disconnect switch, ensuring safety and code compliance.

General Data

• Dimensions (W x D x H): 30.89 x 9.08 x 33.79 in (784 x 231 x 858 mm)

• Weight: 269 lbs (122 kg)

• Mounting: Floor Standing (includes base)

• Operating Temperature: -4°F to 140°F (-20°C to 60°C)

• Certifications: UL 1973, UL 9540, UL 9540A, UN 38.3

Frequently Asked Questions

Q1: Can I use the battery module by itself?

No. To function, the 9.6 kWh battery module must be installed with the eWay control unit (top) and the Base (bottom). These components provide the necessary brain, fusing, and physical stability.

Q2: Is it easy to add more capacity later?

Yes. You can simply lift the eWay controller off, stack another 9.6 kWh module on top of the existing one, and place the controller back on. The internal connectors link them automatically without external wiring.

Q3: Can I install this in the snow?

Yes. The unit is IP65 rated (water and dust tight) and features internal heating elements that keep the cells warm enough to charge even when ambient temperatures drop below freezing.

Q4: How big is the footprint?

It is very compact. The system is only about 2 feet wide and 9.4 inches deep, making it slim enough to fit along garage walls or tight outdoor walkways without obstructing traffic.