eVault 18.5 Technical Datasheet

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.
The eVault Max 18.5 is The Largest Single Residential Battery On The Market!
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%
Self-Discharge <1 % / Month
Maximum Allowed Modules in Parallel 20
Discharge Specifications
Recommended Continuous Discharge
Rate
150A (7.6 KW)
Peak Continuous Discharge Rate 180A (9.2 KW)
Maximum Surge Power Rate 200A (10.2kW 10S)
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 Prismatic - LiFeP04
Charge Specifications
Recommended Charge Current 150A
Maximum Charge Current 180A
Recommended Charge Voltage 54.4V
BMS Charge Voltage Disconnect >56V
• • Intelligent Digital Processor Based BMSIntelligent Digital Processor Based 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 displayTouch screen LCD performance display
Compliance Specifications:
Certifications UL1642, UL1973, UL9540
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
EVAULT MAX 18.5 LITHIUM BATTERY STORAGE
UL1642, UL1973, UL9540
eVault Max 18.5 Lithium Battery Storage
www.FortressPower.com
[e-mail] • 877-497-6937 • 505 Keystone Road, Southampton, PA 18966, USA