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Fortress Power eVault Max 18.5kWh
eVault Max 18.5kWh

Fortress Power eVault Max 18.5kWh

Very Good
  • Usable Capacity: 18.5kWh
  • Roundtrip Efficiency: 98%
  • Warranty: 10 Years
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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, Peak Charge Reduction, and Demand Response, just to name a few.

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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, Peak Charge Reduction, and Demand Response, just to name a few.

See all Fortress Power Solar Batteries See all Solar Batteries
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Model Year
2021
Connection Type (AC or DC)
DC
Chemistry
Lithium Iron Phosphate
Audience
Residential
Total Capacity
18.5kWh
Usable Capacity
18.5kWh
Power: Peak
12kW
Power: Continuous
9.2kW
Depth of Discharge
100%
Degradation
7.0%
Roundtrip Efficiency
98%
The key characteristics of a battery are the power output, usable capacity and efficiency with which it stores and discharges electricity. Other characteristics, like the chemistry of the battery, help to determine how effective it is at storing electricity.
Warranty
10 Years
Warranty Cycles
8000
Warranties are an indication of the overall quality of the battery. Look for a high number of cycles, a high percentage of end-of-life usable capacity, and a large number of years warrantied.
Battery Dimensions
42.2 mm L
20.3 mm W
20.3 mm D
Traits
  • Scalable
  • Off-Grid Capable
  • Backup Capable
The physical characteristics of a battery help determine whether you’ll need an entire garage of batteries or a wall-mounted, radiator-size battery. Beyond just storing energy, batteries have a number of additional traits, such as being able to easily scale in size or to provide power if the grid goes down.
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Energy storage manufacturers may have a background in chemical industries or in making larger-scale batteries, such as building batteries for electric vehicles. Manufacturers may either make the battery cells themselves or assemble the batteries into a comprehensive energy storage system.
Certifications Received
Organizations like the International Electrotechnical Commission (IEC) and Underwriters Laboratories (UL) create national and international standards for energy storage systems to ensure any products on the market meet certain specifications for safety and reliability reasons.
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