Cart
cload
Checkout Secure
30,000+ Customers | Lifetime Support | 30% Federal Tax Credit

Extended Phone Hours! Call:

Phone Icon 1-877-242-2792

Monday-Friday: 10am-6pm EST
Saturday: 10-4pm EST

Fortress Power eVault [MAX] 18.5kWh Lithium Ferro Phosphate Battery | 10-Year Warranty

Rated 0.0 out of 5
0 Reviews
Rated 0.0 out of 5
0 Reviews

Your Price:
$11,570.00 $14,999.00
You Save: $3,429.00 23%
SKU: FEV-MAX-18.5
Add to cart

✔ All Orders Processed in 72 hours or less!
✔ Instant Financing Available at Checkout
✔ 3 Nationwide Distribution Centers

✔ Authorized Distributor & Full Manufacturer Warranty

What We Offer:

  • Image of

    Lifetime Customer Service

  • Image of

    Guaranteed Safe Delivery

  • Image of

    After-Sale Technical Support

Have a question? We're here to help.

Friendly Phone Support: 877-242-2792 |
Quick Quote | Mon-Fri 10am-6pm EST

Fortress Power eVault [MAX] 18.5 Kilowatt-hour Lithium Battery Storage

The newest innovative Lithium Iron Phosphate battery from Fortress Power is the eVault Max 18.5 kWh. An all-in-one solution for your residential and commercial needs. Scalable up to 370kWh with serviceable top cover access to make installation of this battery simple and worry-free. The eVault Max is AC/DC coupled to solar arrays and works for many applications that require solar storage, including Off-Grid, Back-Up power, self-supply, and Peak Charge Reduction just to name a few.

Not only is the new fortress eVault Max 18.5 kWh battery safe, long-lasting and affordable, but is also equipped with a brand new LCD screen that displays voltage, current, state of charge, and power output and operating status. The built-in smart battery management system integrates multilevel safety concepts for excellent performance.

Latest Technology: We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.

Lowest Cost per cycle: Competitively priced and easy to install with >98% round-trip efficiency.

Flexible and Scalable: Expandable from 18.5 kWh to 370 kWh for both residential and commercial buildings

Long-Lasting: 10-year warranty; up to 6,000+ cycles

Smart and Advanced: The smart relay-based Battery Management System, supports closed-loop communication with various hybrid inverters for best performance - scalable up to 20 units

Fortress Power eVault MAX 18.5 Specifications:

  • Total Energy: 18.5 kWh
  • Nominal Voltage: 51.2(48)V
  • Voltage Range: 45-58.4 V
  • Recommended Charge Current: 150 Amp
  • Max. Charge Current(Continuous): 180 Amp
  • Max. Discharge Current(Continuous): 180 Amp
  • Recommend Storage temperature: 50 to 95 F
  • Charge temperature: 32 to 113 F
  • Capacity: 370 Amp-hour
  • UL 9540 Listed
  • Dimension(H x W x D): 42.2" x 20.3" x 20.3"
  • Weight: 520 lbs

Fortress Power eVault MAX 18.5 Benefits:

    • Safe Lithium Iron Phosphate Technology (LiFeP04)
    • High durability and long-lasting
    • Closed loop communication with inverters
    • Scalable from 18.5kWh-370kWh
    • Intelligent digital processor based BMS
    • Advanced cell level monitoring and balancing

    Technical Features:

    • Large touch screen LED display
    • Sleek IP55 industrial-grade aluminum
    • Front-serviceable cover
    • Transportable on wheels

    Downloads And Specs:

    Shipping Times Estimated delivery time for in-stock orders placed today is 5-10 business days. Due to the increase in demand for off-grid solar products in 2022, our average shipping times for most orders is currently 9-12 business days.

    Shipments & Lead Times: We process all orders within 72 hours. From there, we do our best to ship as quickly as possible. Shipping times vary depending on the product and size of your order. We will send you your tracking information to the e-mail and/or phone number on file.

    With the incredible demand for solar products, our average delivery time to your door is between 9-12 business days from date of order. However, for some products, shipping can be as fast as 5-7 business days to your door. Please check specific product pages for the most accurate information.

    *As of the start of 2022 - our stock levels are healthy and shipments are moving relatively quickly. If you place an order for something that is not in stock, or is on backorder, our team will reach out to you within 24-72 hours of placing your order to determine how you would like to move forward.

    If you have any questions, give us a call at 877-242-2792 or reach out via email / live chat.

    Product Description

    Fortress Power eVault [MAX] 18.5 Kilowatt-hour Lithium Battery Storage

    The newest innovative Lithium Iron Phosphate battery from Fortress Power is the eVault Max 18.5 kWh. An all-in-one solution for your residential and commercial needs. Scalable up to 370kWh with serviceable top cover access to make installation of this battery simple and worry-free. The eVault Max is AC/DC coupled to solar arrays and works for many applications that require solar storage, including Off-Grid, Back-Up power, self-supply, and Peak Charge Reduction just to name a few.

    Not only is the new fortress eVault Max 18.5 kWh battery safe, long-lasting and affordable, but is also equipped with a brand new LCD screen that displays voltage, current, state of charge, and power output and operating status. The built-in smart battery management system integrates multilevel safety concepts for excellent performance.

    Latest Technology: We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.

    Lowest Cost per cycle: Competitively priced and easy to install with >98% round-trip efficiency.

    Flexible and Scalable: Expandable from 18.5 kWh to 370 kWh for both residential and commercial buildings

    Long-Lasting: 10-year warranty; up to 6,000+ cycles

    Smart and Advanced: The smart relay-based Battery Management System, supports closed-loop communication with various hybrid inverters for best performance - scalable up to 20 units

    Fortress Power eVault MAX 18.5 Specifications:

    • Total Energy: 18.5 kWh
    • Nominal Voltage: 51.2(48)V
    • Voltage Range: 45-58.4 V
    • Recommended Charge Current: 150 Amp
    • Max. Charge Current(Continuous): 180 Amp
    • Max. Discharge Current(Continuous): 180 Amp
    • Recommend Storage temperature: 50 to 95 F
    • Charge temperature: 32 to 113 F
    • Capacity: 370 Amp-hour
    • UL 9540 Listed
    • Dimension(H x W x D): 42.2" x 20.3" x 20.3"
    • Weight: 520 lbs

    Fortress Power eVault MAX 18.5 Benefits:

      • Safe Lithium Iron Phosphate Technology (LiFeP04)
      • High durability and long-lasting
      • Closed loop communication with inverters
      • Scalable from 18.5kWh-370kWh
      • Intelligent digital processor based BMS
      • Advanced cell level monitoring and balancing

      Technical Features:

      • Large touch screen LED display
      • Sleek IP55 industrial-grade aluminum
      • Front-serviceable cover
      • Transportable on wheels

      Downloads And Specs:

      Shipping & Delivery

      Shipping Times Estimated delivery time for in-stock orders placed today is 5-10 business days. Due to the increase in demand for off-grid solar products in 2022, our average shipping times for most orders is currently 9-12 business days.

      Shipments & Lead Times: We process all orders within 72 hours. From there, we do our best to ship as quickly as possible. Shipping times vary depending on the product and size of your order. We will send you your tracking information to the e-mail and/or phone number on file.

      With the incredible demand for solar products, our average delivery time to your door is between 9-12 business days from date of order. However, for some products, shipping can be as fast as 5-7 business days to your door. Please check specific product pages for the most accurate information.

      *As of the start of 2022 - our stock levels are healthy and shipments are moving relatively quickly. If you place an order for something that is not in stock, or is on backorder, our team will reach out to you within 24-72 hours of placing your order to determine how you would like to move forward.

      If you have any questions, give us a call at 877-242-2792 or reach out via email / live chat.

      Customer Reviews

      Recently viewed products

      EcoFlow Delta 1800W / 1,300wH [Quad Kit] +...
      Someone purchased a 54 minutes ago
      Bluetti AC200P 2,000W / 2,000wH [Hex Kit] +...
      Someone purchased a 40 minutes ago
      Complete Off-Grid Solar Kit - MPP LV2424 2,400W...
      Someone purchased a 45 minutes ago
      EcoFlow DELTA PRO 3,600wH / 3,600W [Hex Kit]...
      Someone purchased a 23 minutes ago
      Complete DIY Solar Panel Kit - 2,000W Pure...
      Someone purchased a 32 minutes ago
      EcoFlow DELTA [PRO] 3,600wH / 3,600W [NOMAD Kit]...
      Someone purchased a 23 minutes ago
      Complete DIY Solar Panel Kit - 3,000W Inverter...
      Someone purchased a 29 minutes ago
      EcoFlow Smart Home Panel Extra Infinity Cable
      Someone purchased a 38 minutes ago
      Complete Solar Kit - 7,200W 120/240V Output /...
      Someone purchased a 49 minutes ago
      Complete DIY Solar Panel Kit - 2,000W Pure...
      Someone purchased a 42 minutes ago
      EcoFlow DELTA PRO 3,600wH / 3,600W [Quad Kit]...
      Someone purchased a 39 minutes ago
      Complete Hybrid Solar Kit - Sol-Ark 12K 120/240V...
      Someone purchased a 38 minutes ago
      Complete Off-Grid Solar Kit - 3,000W / 120V...
      Someone purchased a 37 minutes ago