🔄

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Skip to content

Fortress Power eVault Max 18.5 kWh Lithium Ferro Phosphate Battery

SKU EVAULTMAX18.5
Sold out
$7,698.97
Availability: Translation missing: en.general.icons.icon_check_circle icon Out of stock

Notify me when back in stock

¡También ofrecemos atención al cliente en español!

Find a better price somewhere else?

Well... we will BEAT their price to get you the lowest pricing, we will find and SPEAK with a local installer, AND you get our post-purchase customer support.

  • US Based Authorized DuroMax Dealer

    Full manufacturer warranty included

  • 4-5 Day Free Shipping + No Sales Tax

    More savings on every purchase and ships in 4-5 business day

  • Easy 30-Day Returns & Price Beat Guarantee

    Risk-free shopping + best price guaranteed

  • Post-Purchase Customer Support

    Dedicated help whenever you need it


ESTIMATED DELIVERY BETWEEN

Order within to get it by the earliest date.


In Stock and Ready To Ship

All of our items are in stock and ready to ship. All items ship within 1 business day.

Top Customer Service

We have excellent customer service. Questions? Call us at 1-888-855-7286

Hassle Free Returns

30 Day Easy Return Policy

Price BEAT Guarantee

Found a better price? We will BEAT it!

Fortress eVault Max Makes Indoor Life Interruption-Free

Fortress Power eVault Max 18.5 kWh Lithium Ferro Phosphate Battery delivers high capacity, long life, and stable performance for whole home backup and energy storage. It features a 250A safety breaker, a smart LCD that shows voltage, current, and state of charge, and full front service access for easy maintenance. With a scalable design up to 370 kWh, UL9540 and UL1973 certifications, and reliable lithium ferro phosphate chemistry, it offers safer and longer-lasting power compared to many standard home batteries.

Bring dependable energy security to your home with the Fortress eVault Max Battery - EVAULTMAX18.5. Buy yours today and enjoy powerful backup ready whenever you need it.

Specifications

  • Chemistry: Lithium Iron Phosphate (LiFePO₄ or LFP), known for its safety, durability, and long lifespan.
  • Total energy: 18.5 kWh.
  • Nominal voltage: 51.2 V (48V nominal).
  • Capacity: 360 Ah (Amp-hours).
  • Maximum charge current: 180 A (continuous).
  • Maximum discharge current: 180 A (continuous).
  • Scalability: The system can be expanded by connecting up to 20 units in parallel, for a total capacity of 370 kWh.
  • Efficiency: Over 98% round-trip efficiency.
  • Cycle life: 8,000+ cycles at 80% Depth of Discharge (DoD).
  • Dimensions: 20.3" x 20.3" x 42.2" (width x depth x height).
  • Weight: 520 lbs.
  • Certifications: UL 9540, UL 1973, and UL 1642 certified.
  • Warranty: 10 years.

Features:

  • Whole home and off-grid-ready energy storage
  • Compatible with AC and DC-coupled solar systems
  • Smart BMS for advanced cell-level protection
  • Works seamlessly with top hybrid inverter brands
  • Reduces energy costs by shifting usage to stored power
  • Helps businesses cut peak demand charges
  • Floor-standing all-in-one design for easy installation
  • Top access and LCD screen for quick maintenance
    IP55 industrial aluminum enclosure for indoor or outdoor use
    Long-lasting and safe lithium ferro phosphate chemistry

Product Documents:

Shipping/Return Policy

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

  • Processing time for orders is 1 business day
  • Shipping time for orders is 4-5 business days

Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286

Schedule a Consultation

  • Still interested but want to talk at a diferent time?
  • Schedule a consultation here for later!
Book a Consultation
f
Shipping

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286