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Fortress eFlex Max - 5.4kWh 51.2V Battery

Fortress eFlex Max - 5.4kWh 51.2V Battery

In Stock
SKU: PES-FFS-EFLEXMAXBrand: Fortress
Regular price $1,399.00 USD
Regular price Sale price $1,399.00 USD
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$259/kWhIn Stock
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SKU
PES-FFS-EFLEXMAX
Unit price
$259/kWh
OEM Authorized Full Warranty 7-10 Business Days Delivery

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Fortress

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Fortress eFlex Max 5.4kWh 51.2V LFP Battery

The Fortress eFlex Max is a 5.4kWh lithium iron phosphate (LFP) battery designed for residential and commercial solar energy storage. With a 51.2V nominal voltage and IP65 outdoor rating, it offers flexible installation options. The modular design allows up to 30 batteries in parallel for scalable capacity, and the built-in battery management system (BMS) ensures safe, reliable operation.

Key Features:

  • 5.4kWh usable capacity (105Ah at 51.2V)
  • Lithium Iron Phosphate (LFP) chemistry - safest lithium technology
  • 51.2V nominal voltage (16S1P configuration)
  • IP65 rated for outdoor installation
  • Up to 30 units in parallel for scalable capacity (162kWh max)
  • Built-in Battery Management System (BMS)
  • Wall-mount bracket included
  • 10-year warranty
  • CAN bus and RS485 communication
  • Compatible with leading inverters

Shop the Fortress eFlex Max battery at Portlandia Electric Supply for competitive pricing and expert solar storage advice.

SKUPES-FFS-EFLEXMAX
ManufacturerFortress

    No documents available for this product. Contact us to request documentation.

    Fortress eFlex Max - 5.4kWh 51.2V Battery
    Fortress eFlex Max - 5.4kWh 51.2V Battery $1,399.00

    Specifications

    Capacity 5.4kWh
    Product Category Battery