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Fortress

Fortress Power Battery Storage: Safe, Scalable Energy Systems

Fortress Power is a Pennsylvania-based clean-energy manufacturer specializing in safe, high-performance Lithium Iron Phosphate fortress power battery storage systems. Engineered for total energy independence, these non-toxic battery units deliver long-term savings, zgrid resilience, and closed-loop communication with top-tier hybrid inverters, generators, and smart energy management platforms. Built for extreme weather endurance, the line features real-time Guardian IoT monitoring and high thermal stability to naturally prevent runaway hazards.

Whether you are scaling a remote off-grid array, cutting commercial peak demand charges, or securing a whole-home backup system, Visit Solux.energy to build your setup. Use the filters on the left to select your required battery capacity, voltage, or mounting accessories, and explore the full product grid below.

16 products

  • Solux Fortress Inverter Solo 6.5kW product graphic on a blue and white background, showing the gray and black inverter unit with feature callouts and a 10-year warranty badge.A technical specification sheet for a UPS battery, featuring a table of technical data, general information, battery parameters, PV input, grid/generator input, communication standards, and altitude derating performance on a white background.
    Solux Fortress Inverter Solo 6.5kW product graphic on a blue and white background, showing the gray and black inverter unit with feature callouts and a 10-year warranty badge.A technical specification sheet for a UPS battery, featuring a table of technical data, general information, battery parameters, PV input, grid/generator input, communication standards, and altitude derating performance on a white background.

    Fortress Solo 6.5 kW Off Grid Inverter

    Description Fortress Solo 6.5K Hybrid Inverter The Fortress Power Solo 6.5K is a powerful and flexible 6.5kW split/single-phase hybrid inverter designed...

    $1,914.47 USD
    $1,914.47 USD
    $1,914.47 USD
  • SOLUX Fortress Inverter Envy Duo 21-US (16 kWh) solar power system unit shown on a blue and white promotional background with feature callouts and a 10-year warranty badge.A technical specification sheet for a Powerhouse Lithium-ion battery, displaying detailed electrical, environmental, and safety data in a clean, multi-column table format.
    SOLUX Fortress Inverter Envy Duo 21-US (16 kWh) solar power system unit shown on a blue and white promotional background with feature callouts and a 10-year warranty badge.A technical specification sheet for a Powerhouse Lithium-ion battery, displaying detailed electrical, environmental, and safety data in a clean, multi-column table format.

    Fortress Envy Duo 21-US (16 kWh) Hybrid Inverter

    Description Fortress Envy Duo 21 Whole Home Hybrid Inverter  The Fortress Envy Duo 21 is a 48 V hybrid inverter...

    $6,114.65 USD
    $6,114.65 USD
    $6,114.65 USD
  • Promotional graphic for the Solux Fortress Wall Mount Bracket eFlex Max Wall Mounting Kit, showing the bracket, two yellow busbar cables, and mounting hardware on a white and blue background with feature callouts.A set of metal mounting hardware on a plain white background, including a dark gray bracket, two long orange metal bars with copper-toned ends, and two small dark gray connector pieces.
    Promotional graphic for the Solux Fortress Wall Mount Bracket eFlex Max Wall Mounting Kit, showing the bracket, two yellow busbar cables, and mounting hardware on a white and blue background with feature callouts.A set of metal mounting hardware on a plain white background, including a dark gray bracket, two long orange metal bars with copper-toned ends, and two small dark gray connector pieces.

    Fortress eFlex Max Wall Mounting Kit for Parallel Batteries

    Description Fortress eFlex MAX Wall Mounting Kit with 2 x 300A Busbars The Fortress eFlex MAX Wall Mounting Kit is...

    $123.75 USD
    $123.75 USD
    $123.75 USD
  • Promotional graphic for the Solux Frotress Eboost Eway, showing a technical product diagram with a gray electrical enclosure open to reveal internal components, alongside feature callouts on a white and coral background.A technical comparison chart for Fortress Power's eBoost eWay vs. eWay Lite batteries, showing front, back, top, and side views with terminal and connection details.
    Promotional graphic for the Solux Frotress Eboost Eway, showing a technical product diagram with a gray electrical enclosure open to reveal internal components, alongside feature callouts on a white and coral background.A technical comparison chart for Fortress Power's eBoost eWay vs. eWay Lite batteries, showing front, back, top, and side views with terminal and connection details.

    Fortress eBoost eWay for AC and DC Wire Management

    Description Fortress Power eBoost eWay AC/DC Wire Management & Busbar Enclosure The Fortress Power eBoost eWay is a heavy-duty wiring...

    $538.68 USD
    $538.68 USD
    $538.68 USD
  • Solux Fortress Enclosure Durarack Max outdoor heat pump unit in white and black, shown on a blue and white promotional background with feature icons and text.A product information sheet for Durarack lithium batteries by Fortess Power, showing a gray battery pack, a white battery module, and technical specifications, dimensions, and scale drawings on a white background.
    Solux Fortress Enclosure Durarack Max outdoor heat pump unit in white and black, shown on a blue and white promotional background with feature icons and text.A product information sheet for Durarack lithium batteries by Fortess Power, showing a gray battery pack, a white battery module, and technical specifications, dimensions, and scale drawings on a white background.

    Fortress Durarack Max (Outdoor Rated Enclosure)

    Description Fortress Durarack Max High-Capacity Expandable Storage Expand your energy storage with the new Fortress Power DuraRack! This enclosure stores...

    $1,681.53 USD
    $1,681.53 USD
    $1,681.53 USD
  • Solux Fortress Enclosure Durarack outdoor air source heat pump unit in white and black, shown on a blue and white promotional graphic with feature icons and text.A product information sheet for the DuraRack 4x4 with 5.4 kWh lithium battery system by Fortress Power, showing front, top, bottom, and side line drawings of the battery cabinet, along with dimensions, weight, and a specifications table.
    Solux Fortress Enclosure Durarack outdoor air source heat pump unit in white and black, shown on a blue and white promotional graphic with feature icons and text.A product information sheet for the DuraRack 4x4 with 5.4 kWh lithium battery system by Fortress Power, showing front, top, bottom, and side line drawings of the battery cabinet, along with dimensions, weight, and a specifications table.

    Fortress Durarack (IP65 Outdoor Rated Enclosure)

    Description Heavy-Duty Quad-Module Protection The Fortress Durarack (IP65 Outdoor Rated Enclosure) is a heavy-duty battery cabinet engineered for indoor and...

    $1,310.28 USD
    $1,310.28 USD
    $1,310.28 USD
  • A promotional product graphic for Fortress Durarack Mini by Solux.energy with product image of enclosure on the right side and key features on the leftTechnical product sheet for the DuraRack mini battery stack by Fortress Power, showing a 2-stack 4 kWh lithium battery system with labeled dimensions, weight, and a specification table on a white background.
    A promotional product graphic for Fortress Durarack Mini by Solux.energy with product image of enclosure on the right side and key features on the leftTechnical product sheet for the DuraRack mini battery stack by Fortress Power, showing a 2-stack 4 kWh lithium battery system with labeled dimensions, weight, and a specification table on a white background.

    Fortress Durarack Mini (IP65 Outdoor Rated Enclosure)

    Description Fortress Durarack Mini Heavy-Duty Weatherproof Enclosure The Fortress Durarack Mini (IP65 Outdoor Rated Enclosure) is a compact battery cabinet...

    $764.33 USD
    $764.33 USD
    $764.33 USD
  • SOLUX Fortress Enclosure FlexTower product graphic on a white and blue background, showing a white and dark gray dual-bay energy storage enclosure with feature callouts on the left.A product information sheet for Durarack lithium batteries by Fortess Power, showing a gray battery pack, a white battery module, and technical specifications, dimensions, and scale drawings on a white background.
    SOLUX Fortress Enclosure FlexTower product graphic on a white and blue background, showing a white and dark gray dual-bay energy storage enclosure with feature callouts on the left.A product information sheet for Durarack lithium batteries by Fortess Power, showing a gray battery pack, a white battery module, and technical specifications, dimensions, and scale drawings on a white background.

    Fortress FlexTower Inverter Outdoor Rated Enclosure for Sol-Ark 12K or 15K Inverter

    Description Fortress FlexTower All-in-One Enclosure Architecture The Fortress FlexTower Inverter Outdoor Rated Enclosure for Sol-Ark 12K or 15K Inverter is...

    $1,601.45 USD
    $1,601.45 USD
    $1,601.45 USD
  • Promotional graphic for the Solux Fortress Eforce Front Cover enclosure panel, showing a close-up of the gray inverter cover panel with product features listed on the left and the Solux logo at the top right.Front view of eforce front cover panel
    Promotional graphic for the Solux Fortress Eforce Front Cover enclosure panel, showing a close-up of the gray inverter cover panel with product features listed on the left and the Solux logo at the top right.Front view of eforce front cover panel

    Fortress eForce Front Cover Panel for Envy with use of EForce System

    Description Fortress eForce Front Cover Panel Protective Enclosure Architecture The Fortress eForce Front Cover Panel for Envy with use of...

    $407.64 USD
    $407.64 USD
    $407.64 USD
  • Promotional graphic for the SOLUX Fortress Eforce Wall Mount Bracket, featuring product specifications, icons, and a 3D rendering of the wall rack system on a white and blue background.A technical product rendering showing a long rectangular mounting bracket or shelf support with two angled metal brackets attached, plus small hardware pieces and a small inset detail on a white background.
    Promotional graphic for the SOLUX Fortress Eforce Wall Mount Bracket, featuring product specifications, icons, and a 3D rendering of the wall rack system on a white and blue background.A technical product rendering showing a long rectangular mounting bracket or shelf support with two angled metal brackets attached, plus small hardware pieces and a small inset detail on a white background.

    Fortress eForce Wall Mount Bracket for 9.6 kwh eForce module

    Description Heavy-Duty Structural Mounting Fortress eForce Wall Mount Bracket for 9.6 kwh eForce module The Fortress eForce Wall Mount Bracket...

    $291.17 USD
    $291.17 USD
    $291.17 USD
  • Promotional graphic for the Solux Fortress Eway and Base modular battery system, showing a rear view of the heavy-duty battery unit with text callouts about copper busbars, vertical stackability, direct inverter stacking, and smart battery management.A technical specification sheet for the eForce 9.6 kWh lithium-ion battery system, featuring bar charts, technical drawings, a house illustration showing battery installation, and certification logos.
    Promotional graphic for the Solux Fortress Eway and Base modular battery system, showing a rear view of the heavy-duty battery unit with text callouts about copper busbars, vertical stackability, direct inverter stacking, and smart battery management.A technical specification sheet for the eForce 9.6 kWh lithium-ion battery system, featuring bar charts, technical drawings, a house illustration showing battery installation, and certification logos.

    Fortress eForce eWay and Base

    Description Fortress eForce eWay and Base Centralized Wiring Architecture  The Fortress eForce eWay and Base is an integrated wire management...

    $1,237.49 USD
    $1,237.49 USD
    $1,237.49 USD
  • SOLUX Fortress Eforce Battery eForce Module 9.6 promotional graphic showing a gray and white battery unit with feature callouts and a 10-year warranty badge.A technical specification sheet for the eForce 9.6 kWh lithium-ion battery system, featuring bar charts, technical drawings, a house illustration showing battery installation, and certification logos.
    SOLUX Fortress Eforce Battery eForce Module 9.6 promotional graphic showing a gray and white battery unit with feature callouts and a 10-year warranty badge.A technical specification sheet for the eForce 9.6 kWh lithium-ion battery system, featuring bar charts, technical drawings, a house illustration showing battery installation, and certification logos.

    Fortress eForce Module 9.6 kwh 200Ah LFP battery

    Description High-Capacity Stackable Modular Power The Fortress eForce Module 9.6 kwh 200Ah LFP battery is a stackable 48V energy storage...

    $3,930.84 USD
    $3,930.84 USD
    $3,930.84 USD
  • SOLUX Fortress Eflex Max Battery promotional graphic showing a black and gray prismatic LFP battery unit on a white and blue background with feature callouts and a 10-year warranty badge.A technical specification sheet for the eFlex MAX 5.4 Lithium Battery Storage system, featuring electrical, mechanical, and charging specifications alongside a product photo of the unit in the top right corner.
    SOLUX Fortress Eflex Max Battery promotional graphic showing a black and gray prismatic LFP battery unit on a white and blue background with feature callouts and a 10-year warranty badge.A technical specification sheet for the eFlex MAX 5.4 Lithium Battery Storage system, featuring electrical, mechanical, and charging specifications alongside a product photo of the unit in the top right corner.

    Fortress eFlex Max - Battery Only 105 AH, 5.4 kWh

    Description Fortress eFlex Max 105 AH, 5.4 kWh Battery The Fortress eFlex Max Battery 105 AH, 5.4 kWh is a...

    $1,565.06 USD
    $1,565.06 USD
    $1,565.06 USD
  • SOLUX Fortress Eboost Battery eBoost 16 kWh promotional graphic showing a tall rectangular battery unit on a white and blue background with feature callouts and a 10-year warranty badge.A technical specification sheet for a precision-engineered industrial contactor, showing two gray metal contactor units with columns of technical data including weight, operating temperature, dimensions, battery specifications, and standards certifications.
    SOLUX Fortress Eboost Battery eBoost 16 kWh promotional graphic showing a tall rectangular battery unit on a white and blue background with feature callouts and a 10-year warranty badge.A technical specification sheet for a precision-engineered industrial contactor, showing two gray metal contactor units with columns of technical data including weight, operating temperature, dimensions, battery specifications, and standards certifications.

    Fortress eBoost 16 kWh 314 Ah LFP Battery

    Description Fortress eBoost 16 kWh LFP Battery The Fortress eBoost 16 kWh 314 Ah LFP Battery is a high-capacity fortress...

    $4,433.12 USD
    $4,433.12 USD
    $4,433.12 USD
  • Promotional graphic for the Solux Fortress EBOSS EWAY LITE eBoost eWay Lite solar power system, showing a side-by-side inverter enclosure with its internal battery and DC components exposed. The graphic features product specifications and features listed on a clean, off-white background with coral-colored accents.An open gray metal electrical junction box showing internal wiring, terminal blocks, and conduit on a plain white background.
    Promotional graphic for the Solux Fortress EBOSS EWAY LITE eBoost eWay Lite solar power system, showing a side-by-side inverter enclosure with its internal battery and DC components exposed. The graphic features product specifications and features listed on a clean, off-white background with coral-colored accents.An open gray metal electrical junction box showing internal wiring, terminal blocks, and conduit on a plain white background.

    Fortress eBoost eWay Lite AC/DC Wire Management Box

    Description Fortress Power eWay Lite Wire Management Box The Fortress eBoost eWay Lite AC/DC Wire Management Box is a floor-mounted...

    $378.52 USD
    $378.52 USD
    $378.52 USD
  • SOLUX Fortress Evault eVault Max 18.5 promotional graphic showing a tall silver and black industrial battery storage unit on a light background with feature callouts and a 10-year warranty badge.eVault Max 18.5 fortress evault max
    SOLUX Fortress Evault eVault Max 18.5 promotional graphic showing a tall silver and black industrial battery storage unit on a light background with feature callouts and a 10-year warranty badge.eVault Max 18.5 fortress evault max

    Fortress eVault Max 18.5

    Description Fortress eVault Max 18.5 Engineered for simplicity and performance, the eVault MAX features AC and DC coupling options and...

    $6,988.17 USD
    $6,988.17 USD
    $6,988.17 USD
Customer Satisfaction Stars

100% Customer Satisfaction is our Goal!

Our priorities start first with our customer. We provide a Customer Focused Service that is a consultative approach to understanding your project or need. Experience has shown us that it yields greater results in project efficiency, cost savings, and customer satisfaction. Whether you’re looking to replace a solar panel or a battery, or have a project that requires sizing, design, support, and procurement - we are happy to help! Beyond that sales aspect, we work hard to ensure your order is processed, shipped, and delivered in a timely manner and in good condition.

Growth in Partnerships

Through our network of Manufacturers and Suppliers across the industry, we aim to unlock the full potential of quality solar energy products for your project needs. From our network of reliable solar panel manufacturers to groundbreaking energy storage solutions, we want to ensure we cover all types of applications and product needs so that we can be your one stop shop supplier!
Look to Solux, LLC for your Residential, Commercial, Off-Grid, and Energy Storage needs!

Responsibility to do better!

We believe we have a responsibility to our customers, employees, partners, and community to provide for a better tomorrow. Whether it is a friendly voice over the phone, or a collective effort to create a sustainable and cleaner future - These values keep us accountable to do better in everything that we do.

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We are an online distributor of Solar Energy equipment specializing in supplying Solar Panels, Inverters, Racking, Energy Storage, & Electrical Equipment.

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