Fortress Power eForce 28.8kWh Battery

Fortress Power eForce 28.8kWh Battery | Outdoor-Rated | Stackable to 153.6kWh | High Surge Capacity

Massive Power. Minimal Footprint.

The Fortress Power eForce 28.8kWh is the largest stackable battery in the eForce lineup—offering powerful, scalable, and weather-resistant energy storage for residential, off-grid, and light commercial systems. Combining three 9.6kWh lithium iron phosphate (LFP) modules with the integrated eWay connection platform, this robust solution delivers 28.8kWh of usable energy in one compact, floor-standing unit.

Whether you’re powering a large home, building a microgrid, or expanding a commercial solar-plus-storage system, the eForce 28.8 provides the capacity, flexibility, and intelligence to keep energy flowing—day or night, rain or shine.

Key Features:

• 28.8kWh of Usable Energy: Combines three 9.6kWh LFP modules for significant capacity in a single stack—ideal for energy-intensive homes or commercial backup systems.
• Scalable to 153.6kWh: Supports up to 16 units in parallel, enabling custom system sizing for residential or commercial needs.
• High-Power Performance: Delivers 360A closed-loop discharge and 585A open-loop max discharge, with surge output up to 43,200W (10 seconds)—more than enough to handle startup loads from HVACs, pumps, or heavy appliances.
• Advanced LFP Battery Chemistry: Built with Tier-1 prismatic lithium iron phosphate cells for excellent thermal stability, safety, and 8,000+ cycle life at 70% EOL.
• Integrated eWay Platform: Features built-in busbars, conduit ports, and a lockable/taggable emergency disconnect—simplifying cabling, reducing install time, and ensuring code compliance.
• Outdoor-Ready Enclosure (IP65 Rated): Engineered for all-weather operation, including temperature-controlled internal heating for performance in extreme cold.
• Smart System Communication: Supports RS485, CAN, and Wi-Fi, allowing real-time integration with Fortress Envy inverters and other 48V-compatible energy systems.
• Flexible Mounting Options: Install as floor-standing, ground-mounted, or wall-mounted (wall-mount accessory sold separately) to suit your space.
• 10-Year Warranty: Enjoy long-term peace of mind with Fortress Power’s comprehensive 10-year manufacturer warranty.

Applications:

• Whole-Home Backup & Solar Storage
  
• Off-Grid & Remote Power Systems
  
• Commercial & Light Industrial Energy Storage
  
• Scalable Microgrids
  
• High-Surge or High-Demand Load Support

What’s Included:

• 3 × Fortress Power 9.6kWh LFP Battery Modules (Pre-stacked)
  
• 1 × Fortress Power eWay Connection Platform with Integrated Disconnect
  
• Built-in Heating System for Cold Weather Environments
  
• Real-Time LED Status Indicators
  
• RS485, CAN, and Wi-Fi Ports for Smart Monitoring
  
• Installation Manual & Hardware
  

Specifications

Shopping Guide

Why Shop With Us

Why Shop With Ecogrid Supply?

• Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products with full manufacturer warranties.

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• Expert Energy Guidance: Our solar and backup energy specialists are ready to help you with design, planning, product questions, and installation tips.

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• Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.