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Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

Regular price $1,899.00 -20% $1,519
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Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

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MPN No: eFlex Max 5.4 kWh
Regular price $1,899.00 -20% $1,519

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Expected ship date May 29 - Jun 05

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Regular price $1,899.00 -20% $1,519

Fortress eFlex Max 5.4 kWh 51.2V eFlex Max Battery

Special Features

  • High-Capacity Storage: Offers a nominal capacity of 105AH, delivering a powerful 5.4 kWh of storage.
  • Long Lifespan: Designed with top-tier automotive prismatic LiFeP04 cells, providing up to 8,000 cycles at 80% depth of discharge (DoD).
  • Efficient & Reliable: With over 98% efficiency at 0.5 °C, the eFlex Max ensures minimal energy loss.
  • Enhanced Protection: IP65 enclosure for dust and water resistance, making it ideal for indoor and outdoor applications.
  • Advanced Battery Management System (BMS): Includes individual cell voltage, temperature monitoring, and remote monitoring capabilities for maximum reliability.

Technology Overview

The Fortress eFlex Max 5.4 kWh battery is powered by high-quality lithium iron phosphate (LiFeP04) cells, ensuring enhanced safety, performance, and longevity.

The integrated Battery Management System (BMS) manages cell balancing, temperature, and voltage monitoring. Designed for various applications, this battery supports closed-loop communication with 48V inverters and features advanced firmware updates through Modbus and Canbus protocols.

Installation

  • Mounting Options: The battery is compatible with wall mounts, floor stands, or 19-inch industrial server racks, providing flexibility for different setups.
  • Safety Features: Equipped with a 125A integrated breaker for added protection, along with waterproof terminal covers and sturdy anodized aluminum casing.
  • Connector Compatibility: M8 terminal with 3/8 inch or larger ring terminal size; includes a waterproof terminal cover for durability in outdoor environments.

Applications

The Fortress eFlex Max 5.4kWh battery is ideal for:

  • Residential and Commercial Energy Storage: Provides dependable power backup for homes and businesses.
  • Outdoor Installations: With its IP65-rated enclosure, the battery withstands harsh weather, making it perfect for outdoor settings.
  • Off-Grid and Backup Power: Reliable energy storage solution for both off-grid systems and backup power during outages.

Table of Product Specifications

Specification Details
Nominal Voltage 51.2V
Nominal Capacity 105AH
Rated Capacity (0.5C) 5.374 kWh
Cycle Life 8,000 cycles at 80% DoD
Depth of Discharge Up to 100%
Continuous Discharge Rate 60A (3KW DC)
Peak Discharge Rate 100A (5KW for 60 minutes)
Surge Power 125A (6.6KW for 5 seconds)
Recommended Charge Voltage 54.4V
Max Charge Current 100A
BMS Charge Voltage Disconnect >56V
Dimensions (L x W x H) 17.5 x 7.2 x 24.2 inches (446 x 184 x 616 mm)
Weight 108 lbs (49 kg)
Enclosure Protection IP65
Case Material Anodized Aluminum
Certifications UL1973, UN 38.3, Class 9 Lithium Battery
Temperature Range (Discharge) -4°F to 131°F (-20°C to 55°C)
Temperature Range (Charge) 32°F to 114°F (0°C to 45°C)
Terminal Type M8
Warranty 10 Years


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