Description
Fortress Avalon Battery Module, 4.9 kWh, 48V, Max 50A
Compatible with Fortress Avalon Smart Energy Panel and Fortress Avalon Inverter
Smart Whole-Home Backup Energy Storage Solution
Protect your family from power outages, gain energy independence by living off-grid, earn money with Demand Response programs. With Fortress Power’s Avalon, you can take control of your energy.
The Avalon is the newest innovation from Fortress Power. The system combines a hybrid inverter, high-voltage ba ery, and a smart energy panel. The Avalon is truly an all-in-one, wholehome backup system.
- One smart, user-friendly App for the entire energy storage system
- Indoor / outdoor installation • Storage capacity for whole home ESS is scalable up to 176.4 kWh
- Stackable, ultra-thin space-saving design allows for easy installation and logistics
- 4 MPPTs for maximum efficiency (max 18.24 kW PV array)
- AC or DC Coupled with 200A pass-through & grid transfer switch
- Smart load management to control up to 12 circuits (HVAC, pump, water heater, etc.)
- Integrated module level rapid shutdown transmitter
Special Features:
- High-Capacity Storage: Scalable from 18.5kWh to 111kWh, ideal for whole-home backup power.
- Long Cycle Life: Up to 15,000 cycles, ensuring long-term energy reliability.
- Integrated Solution: All-in-one system with an inverter and Battery Management System (BMS).
- Weatherproof Design: IP65-rated for outdoor installation in any environment.
Technology Overview:
The Fortress Power Avalon ESS provides a comprehensive, scalable energy storage solution. With advanced lithium iron phosphate technology, it is perfect for whole-home backup and off-grid applications.
Installation:
Designed for easy installation with IP65-rated protection for outdoor environments, making it ideal for residential use.
Applications:
- Residential backup power
- Off-grid systems
- Whole-home energy storage
Product Specifications:
| Specification | Details |
|---|---|
| Model | Fortress Power Avalon ESS |
| Storage Capacity | 18.5kWh to 111kWh (scalable) |
| Battery Technology | Lithium Iron Phosphate (LiFePO4) |
| Cycle Life | Up to 15,000 cycles |
| Enclosure Rating | IP65 (Outdoor Rated) |
| Dimensions | 10.96 x 43 x 28.15 in |
| Weight | 302 lbs |
| Warranty | 15 Years |





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