
Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System
Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System
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:Ā We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.
Lowest Cost per cycle:Ā Competitively priced and easy to install with >98% round-trip efficiency.
Flexible and Scalable:Ā Expandable from 18.5 kWh to 370 kWh for both residential and commercial buildings
Long-Lasting:Ā 10-year warranty; up to 6,000+ cycles
Smart and Advanced:Ā 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
Technical Features:
- Large touch screen LED display
- Sleek IP55 industrial-grade aluminum
- Front-serviceable cover
- Transportable on wheels
Downloads And Specs:
Datasheets
eVault MAX Data Sheet
SPANISH eVault Max Data Sheet
SPANISH eVault Max Brochure
Installation Guides / Warranty
Quickstart Guide
Installation Manual
Inverter GuidesĀ (how to configure your inverter/charger)
Battery Firmware Download
Warranty Letter
More Images




Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System
Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System
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:Ā We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.
Lowest Cost per cycle:Ā Competitively priced and easy to install with >98% round-trip efficiency.
Flexible and Scalable:Ā Expandable from 18.5 kWh to 370 kWh for both residential and commercial buildings
Long-Lasting:Ā 10-year warranty; up to 6,000+ cycles
Smart and Advanced:Ā 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
Technical Features:
- Large touch screen LED display
- Sleek IP55 industrial-grade aluminum
- Front-serviceable cover
- Transportable on wheels
Downloads And Specs:
Datasheets
eVault MAX Data Sheet
SPANISH eVault Max Data Sheet
SPANISH eVault Max Brochure
Installation Guides / Warranty
Quickstart Guide
Installation Manual
Inverter GuidesĀ (how to configure your inverter/charger)
Battery Firmware Download
Warranty Letter
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System
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:Ā We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.
Lowest Cost per cycle:Ā Competitively priced and easy to install with >98% round-trip efficiency.
Flexible and Scalable:Ā Expandable from 18.5 kWh to 370 kWh for both residential and commercial buildings
Long-Lasting:Ā 10-year warranty; up to 6,000+ cycles
Smart and Advanced:Ā 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
Technical Features:
- Large touch screen LED display
- Sleek IP55 industrial-grade aluminum
- Front-serviceable cover
- Transportable on wheels
Downloads And Specs:
Datasheets
eVault MAX Data Sheet
SPANISH eVault Max Data Sheet
SPANISH eVault Max Brochure
Installation Guides / Warranty
Quickstart Guide
Installation Manual
Inverter GuidesĀ (how to configure your inverter/charger)
Battery Firmware Download
Warranty Letter





















