Fortress Power Eflex Max 5.4kWh LFP Battery

$2,854.94
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SKU:
FRT-3F13X
Weight:
122.00 LBS
Width:
17.00 (in)
Height:
13.50 (in)
Depth:
20.50 (in)
Shipping:
Calculated at Checkout

Product Description

The Fortress Power eFlex Max is a 5.4kWh lithium iron phosphate (LFP) battery designed for seamless energy storage in residential and commercial applications. Featuring advanced battery management, compatibility with top-tier inverters, and scalable options, the eFlex Max delivers superior performance, safety, and reliability for all your energy needs.


Features

  • High Energy Density: 5.4kWh capacity with compact and durable design for maximum storage efficiency.
  • Enhanced Safety: Lithium iron phosphate chemistry ensures stable and safe operation.
  • Scalable Storage: Supports parallel connections for larger systems, allowing expansion as energy needs grow.
  • Wide Compatibility: Compatible with leading inverter brands, including Sol-Ark, Schneider, and Victron.
  • Advanced Battery Management: Integrated BMS monitors and optimizes battery performance while ensuring longevity.
  • Durable Design: Designed for indoor and outdoor use with IP65 rating for environmental resistance.
  • Extended Lifespan: More than 6,000 cycles at 80% depth of discharge (DoD), offering 15+ years of reliable performance.

Specifications

  • Nominal Capacity: 5.4kWh
  • Voltage: 48V
  • Chemistry: Lithium Iron Phosphate (LFP)
  • Cycle Life: >6,000 cycles @ 80% DoD
  • Operating Temperature Range: -4°F to 131°F (-20°C to 55°C)
  • Communication: CAN/RS485
  • Scalability: Up to 15 units in parallel
  • Warranty: 10 Years

Dimensions

  • H: 13.5 inches
  • W: 17.0 inches
  • D: 20.5 inches

Weight

  • Unit Weight: 122 lbs

Data Sheets

Installation Guides / Warranty

Certifications

Racking Details


Why Shop With Us

At Zendo Solar, your satisfaction is our top priority. Here’s why choosing us for your solar needs is the smartest decision:

  • Expert Customer Support: Our dedicated team is here to assist you every step of the way. Whether you're an experienced solar user or new to renewable energy, we provide tailored guidance to help you make the best decisions for your needs.
  • Fast Shipping: We understand the importance of timely deliveries. Our streamlined shipping ensures your products arrive promptly, so you can start harnessing solar power without delays.
  • Competitive Pricing: At Zendo Solar, we believe everyone should have access to affordable solar solutions. That’s why we offer high-quality products at competitive prices without sacrificing performance or reliability.
  • Transparency You Can Trust: Transparency is at the heart of our operations. From product details to pricing, we provide clear, accurate information to help you make informed choices. No hidden fees, no surprises—just straightforward service.

Experience the Zendo Solar difference today and take the first step toward a brighter, more sustainable future.

Warranty Information

10 Year Limited Warranty for eFlex 5.4 kWh Battery