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Halloween Special Fortress Power Eflex 5.4 Kwh G2 Lithium Iron Phosphate Battery With Mounting Brackets Set [Rkh3xCg7]

$96.99 $310.99 -69%

Fortress Power eFLEX 5.4 kWh Battery SolutionIntroducing the Fortress Power eFLEX 5.4 kWh Lithium Iron Phosphate (LiFePO4) Battery, a cutting-edge energy storage solution designed for both residential and commercial use. This versatile battery boasts

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Fortress Power eFLEX 5.4 kWh Battery Solution

Introducing the Fortress Power eFLEX 5.4 kWh Lithium Iron Phosphate (LiFePO4) Battery, a cutting-edge energy storage solution designed for both residential and commercial use. This versatile battery boasts an impressive 5.4 kWh capacity and is expandable up to 81 kWh, making it suitable for a wide range of applications. With its robust design and advanced features, the eFLEX battery is a reliable choice for those seeking a high-performance energy storage solution.
  • Scalable Energy Storage: Expandable from 5.4 kWh to 81 kWh to meet various energy needs.
  • High Efficiency: Achieves an industry-leading round-trip efficiency of 98%.

Advanced Features and Specifications

The Fortress Power eFLEX 5.4 kWh battery is built with safety and efficiency in mind. It utilizes prismatic LiFePO4 cells, known for their high energy density and safety. The battery comes with wall mounting brackets and is designed to fit into standard server racks, making it easy to integrate into existing systems. The smart relay-based Battery Management System (BMS) ensures optimal performance by monitoring and balancing the voltage and temperature of each cell. Additionally, the battery features built-in data storage and Wi-Fi capabilities for remote monitoring and troubleshooting.
  • Safe and Durable: 10-year warranty with a lifespan of up to 8000 cycles at 80% Depth of Discharge (DOD) or 3000 cycles at 100% DOD.
  • Intelligent Monitoring: Built-in data storage and Wi-Fi for remote monitoring and troubleshooting.

Wide Range of Applications

The Fortress Power eFLEX 5.4 kWh battery is designed to cater to a diverse range of applications, including residential, commercial, railway, military, and telecommunications. Its high energy density and long lifespan make it an ideal choice for those looking to reduce energy costs and increase energy independence. With its lowest cost per cycle and exceptional lifespan, the eFLEX battery offers a cost-effective and sustainable energy storage solution.
  • Cost-Effective: Lowest cost per cycle with a high energy throughput and exceptional lifespan.
  • Waterproof and Durable: IP65 waterproof rating to prevent saltwater corrosion, ensuring long-lasting performance.

What Our Customers Say

December 30, 2025

Absolutely no complaints!

The user experience is seamless.

- Megan W..

December 30, 2025

Absolutely no complaints!

I can't imagine being without it now.

- Janet T..

December 30, 2025

Absolutely no complaints!

It's a very well-made product, great quality and very worthwhile.

- Adler P..

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