Fortress Power eForce 28.8kWh Battery | Outdoor-Rated | Stackable to 153.6kWh | High Surge Capacity
Scalable, Weather-Resistant Energy Storage for Residential, Off-Grid, and Light-Commercial Applications
Massive Power. Minimal Footprint.
The Fortress Power eForce 28.8kWh is the largest stackable battery in the eForce lineup, 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 a single, compact, floor-standing unit.
Whether powering a large home, microgrid, or commercial solar-plus-storage system, the eForce 28.8 provides capacity, flexibility, and intelligence to keep energy flowing—day or night, rain or shine.
System Overview
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28.8kWh Usable Energy: Combines three 9.6kWh LFP modules for significant capacity—ideal for energy-intensive homes or commercial backup systems.
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Scalable Architecture: Supports up to 16 units in parallel for custom system sizing, reaching up to 153.6kWh.
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High-Power Performance: 360A closed-loop and 585A open-loop discharge, with surge output up to 43,200W (10 seconds) to handle HVAC, pump, or heavy appliance loads.
Key Features
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Advanced LFP Battery Chemistry:
- Tier-1 prismatic cells
- Excellent thermal stability and safety
- 8,000+ cycle life at 70% EOL
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Integrated eWay Platform:
- Built-in busbars and conduit ports
- Lockable/taggable emergency disconnect
- Simplified cabling and faster installation
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Outdoor-Ready Enclosure:
- IP65-rated for all-weather operation
- Temperature-controlled internal heating for cold climates
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Smart System Communication:
- RS485, CAN, and Wi-Fi ports
- Real-time integration with Fortress Envy inverters
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Flexible Mounting Options:
- Floor-standing
- Ground-mounted
- Wall-mounted (wall-mount accessory sold separately)
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10-Year Warranty: Long-term peace of mind with Fortress Power’s comprehensive 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
Specification Sheets:
Fortress Power eForce 28.8kWh Battery Specifications (PDF)
Manuals:
Fortress Power eForce 28.8kWh Battery Installation Guide & Owner Manual (PDF)
Certificates:
Fortress Power eForce 28.8kWh Battery Certificate (PDF)
