eVault MAX Data Sheet

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, Peak Charge Reduction, and Demand Response, just to name a few.
We Provide You The Largest Single Residential Battery On The Market With Easy Installation!
Electrical Specifications
Nominal Voltage 51.2V
Nominal Capacity 360AH
Rated Capacity @ 0.5C (180A) 18.43 kWh
Resistance <10 mΩ
Communication Protocol CAN/RS485
Efficiency (at 0.5C) 98%
Cell Self-Discharge <1 % / Month
Maximum Allowed Modules in Parallel 20 (370 kWh)
Depth of Discharge Up to 100%
Warranty 10 Years
Cycle Life 8,000 (@ 80% DoD)
Discharge Specifications
Recommended Continuous Discharge Rate 180A (9.2 KW)
Peak Discharge Rate 230A (12 KW 30 min)
Maximum Surge Power Rate 250A (12.8 kW 5 sec)
Recommended Low Voltage Disconnect 48V
Battery Low Voltage Protection <46V
Battery Recovery Voltage 47V
Temperature Specifications
Discharge Temperature -4°F~140°F (-20°C ~ 60°C)
Charge Temperature 32°F ~ 120°F (0°C ~ 49°C)
Storage Temperature 6 months: 14°F ~ 77°F (-10°C ~ 25°C)
3 months: -4°F ~ 113°F (-20°C ~ 45°C)
Mechanical Specifications
Dimensions: (L*W*H) 20.3” x 20.3” x 42.2”
(515 x 515 x 1073mm)
Weight 520 lbs (235.87 kg)
Terminal Type M10
Ring Terminal Size 1/2” or larger
Terminal Torque 7.0 - 7.7 Nm (5.1 - 5.7 ft - lb)
Case Material Industrial Grade Aluminum
Enclosure Protection IP55
Cell Type Chemistry Tier 1 Automotive Prismatic - LiFeP04
BreakerHigh Cureent
Charge Specifications
Recommended Charge Current 150A
Maximum Charge Current 180A
Recommended Charge Voltage 54.4V
BMS Charge Voltage Disconnect >56V
• • Intelligent Digital Processor Based Battery Management System Intelligent Digital Processor Based Battery Management System
(BMS) (BMS)
• • Advanced cell level monitoring and balancingAdvanced cell level monitoring and balancing
• • IP55 Aluminum Industrial Grade EnclosureIP55 Aluminum Industrial Grade Enclosure
• • Touch screen LCD performance display Touch screen LCD performance display
Compliance Specifications:
Certifications UL1642, UL1973, UL9540, CEC, SGIP
Shipping
Classification UN 38.3. UN 3480, Class 9
Basic Charging Profile
Bulk + Absorb Charge 54.4V
Absorb Time 60 Minutes
Float Charge 54V
Inverter Charging 2 Stage / No Float
Equalization No equalization (typical)
54.6V for 10 seconds (rare)
Temperature Compensation None
• • Safe Lithium Iron Phosphate Technology (LiFeP04)Safe Lithium Iron Phosphate Technology (LiFeP04)
• • High Durability and Long-Lasting High Durability and Long-Lasting
• • Closed Loop Communication with InvertersClosed Loop Communication with Inverters
• • Scalable from 18.5 kWh - 370 kWhScalable from 18.5 kWh - 370 kWh
www.FortressPower.com
[e-mail] • 877-497-6937
eVault Max 18.5 Lithium Battery Storage