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Fortress Power eVault Max 48V Lithium Battery (18.5kWh | 360Ah)

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Manufacturer Warranty Included
SKU EVAULTMAX18.5
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Original price $11,586.00
Original price $11,586.00 - Original price $11,586.00
Original price $11,586.00
Current price $9,700.00
$9,700.00 - $9,700.00
Current price $9,700.00
Availability:
Low stock

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Here at OffGrid Living Solutions, we want to offer you the best prices online.

If you happen to find a lower price for the same product, we will guarantee to match their price or beat their price. Note, this does not apply to all products in the store. Please reach out to us via email or chat if you want a price match or price beat.

For the policy to apply, please send us a screenshot, link, or any other evidence of the product being priced lower than ours before making the purchase.

Refer to our Price Match Policy Rules.

Refunds & Returns Policy

At OffGrid Living Solutions, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.

If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.

Refer to our Refunds & Return Policy for more details.

Shipping & Delivery

Order Processing

Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.

Please allow 1-3 days for processing your order.

Shipping

We ship to the lower 48 continental United States only at this time.

Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@offgridlivingsolutions.com.

We will send tracking information by email the same day the shipping tracking number is created/available.

Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and OffGrid Living Solutions. Once you accept your shipment as non-damage, your item is your property.

Delivery time

Shipping Timeline listed above is an estimate. Please call or message the web chat for precise ETAs.

Fortress Power eVault Max 48V Lithium Battery (18.5kWh | 360Ah)

Description

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 a 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.

  • Overcharge and Deep Discharge Protection
  • Over-heat protection
  • Over Current Protection
  • Cell Monitoring and Balancing
  • Voltage and Temperature Monitoring
  • Closed-Loop Communication with Inverters
  • Optimized Internal Structure – Easily Serviceable
  • Handles More Surge Capacity from Inverters

EVault Max Can’t Be Retrofit To An Existing EVault Classic System. 

Product Specifications

Fortress Power eVault Max 48V Lithium Battery (18.5kWh | 360Ah) Product Specifications

Total Energy (kWh) 18.5
Capacity[Ah] 360
Nominal Voltage [V] 51.2 (48)
Voltage Range[V] 48-55
Recommended Charge Current [A] 150
Max. Charge Current (Continuous)[A] 180
Max. Discharge Current (Continuous)[A] 180
Max. Pulse Current (for 10 sec) [A] 200
Charging Temperature[F] 32 to 120
Discharging Temperature[F] 14 to 77
Dimension [H xW x D, inch] 20.3 x 20.3 x 42.2
Weight[lbs] 520
Enclosure Protection Rating IP55
Mounting options Floor standing
Certificates UL 1642, UL1973, UL9540
Warranty 10 Years
Scalability Maximum 20 in Parallel (370 kWh)
Communication CAN/RS485
High Current Circuit Breaker 250A
Efficiency >98%

Product Manuals

Datasheets

eVault MAX Data Sheet
SPANISH eVault Max Data Sheet
SPANISH eVault Max Brochure

Installation Guides / Warranty

Quickstart Guide
Installation Manual
Inverter Guides (how to configure your inverter/charger)
Battery Firmware Download
Warranty Letter

Certifications

Application Note on Wall Spacing + Drywall Type
OGPe Certificate
eVault Max UL1973 3RD ED
ENVY-eVault Max UL9540 3RD ED

Product Warranty

Warranty Letter

Product FAQs

Fortress Power Product FAQs

1) Does energy storage work well with my solar system?

Yes. On the grid? Absolutely! Energy storage adds a lot of value to your solar systems. It keeps your solar system operating when your utility service is interrupted. Without energy storage, your PV system will be forced to shutdown when the grid is off.

If you live off grid, energy storage enables you to use the clean solar energy to power your home day and night.

Fortress Power also knows you’re a fan of conservation—energy storage saves both your surplus solar energy and your cash since it reduces on grid energy dependence.

2) Can I use energy storage without solar panels?

Absolutely. For on grid clients, a home energy storage unit  stores energy from your electricity provider. If an outage occurs, home energy storage can provide up to 24 hours of potentially life-saving power. Need more reassurance? Fortress Power offers batteries with larger storage capabilities, completely customizable to your needs. And, like you, we appreciate saving money. When electricity is at its lowest daily rate, our smart energy storage units use that period to charge. When peak electric use occurs, our energy storage units can discharge power to suit your lifestyle.

3) What about power outage protection?

Power interruptions shouldn’t disrupt your schedule. An energy storage system will keep your solar system operating during grid outages. When paired with solar panels, an energy storage system supplies unlimited energy delivery. The solar panels power your home during the day and use any excess power to charge the battery. At night, the system keeps your space bright. When used without solar panels, power outage support is dependent on battery size and your energy use. Batteries providing at least 12 hours of backup power are safest.

4) Are home energy storage systems financially beneficial?

You can use the energy storage to shelve your peak usage. When electricity is at its lowest daily rate, our smart energy storage uses that period to charge. During the peak periods, our energy storage system can power your home, reducing your electricity bill. Clients with solar panel installations enjoy a faster return on investment.

5) Do I receive incentives on my energy storage system?

If your energy storage is powered by solar panels, you are eligible for 30% federal tax credit. Many states and utilities provide rebates for homes and businesses with energy storage systems, aiming for grid resilience.

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