FORTRESS POWER eVault Max 18.5 LFP Battery User Guide

: June 17, 2024
: FORTRESS Power

Table of Contents

POWER eVault Max 18.5 LFP Battery
USB Logging
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

eVault Max 18.5
QUICK START GUIDE

POWER eVault Max 18.5 LFP Battery

System Start Up
Before starting up the battery for the first time ensure the following:

The system inverter/equipment is De-energized
Vault Max is Turned off (screen off)
eVault DC breaker is in “Off” position

Read this entire document, in addition to the Installation Manual, before installing or using eVault Max. Failure to do so or to follow any of the instructions or warnings in this document can result in electrical shock, serious injury, or death, or can damage eVault Max, potentially rendering it inoperable. FORTRESS POWER eVault Max 18.5 LFP Battery - un-
boxing

After un-boxing, turn on unit by holding the push button for ~10 seconds wait for the green status light to turn on)

Verify Voltage is above 49V on the LCD Screen
Turn battery off if Voltage is above 49V

If Voltage is below 49V, contact tech support

For single battery systems set the Battery ID to 0
For multiple battery systems. set the bat- tery ID to 1, 2, 3…N
NOTE: Please see the full installation manual for multi-battery systems
Power cycle the battery by using the push button after changing this value.
When configuring closed loop communication set this ID to match your inverter type.
Fortress Power ENVY/ RS485 = 1
Sol-Ark/ CAN= 2
Reserved= 3
Victron/ CAN = 4
Schneider/ RS485 = 5
SMA/ CAN = 6
For multiple battery systems you will need to set the battery termination resistor of the first and last battery to ON, with all others set to OFF.
In addition, you will need to connect the included ethernet communication cables as shown from battery-to-battery
With the battery off, connect proper DC ca- bling to the terminals of the eVault Max
Land the other ends on the inverter DC input, or bus bar/battery combiner
Make sure there is no shorting / reverse polarity
Turn the DC breaker on the eVault max to the “On” position
Turn on the inverter DC input disconnect
Turn on the eVault Max(s) using the push button Instructional Videos

Inverter Programing for eVault Max
Before operating the eVault Max be sure to read the Quick Start Guide, this Setup Guide. and the full Installation Manual.
It is critical to program your inverter or charge controller’s settings for correct operation, im- proper programming of your system equipment may invalidate your battery warranty and could degrade system performance.
Basic Battery Settings Lithium Max Charge Current (per battery)
180A Max Discharge Current (per battery)
250A Battery Capacity (per battery)
360Ah Battery Type (or Custom programmed per Step 2)
Charging Settings for open loop control 54.4V Absorption Voltage
54.4V Float Voltage
54.4V Equalization Voltage (or Disabled)
30 Equalization Days (or Max Number)
0 Equalization Hours (or Lowest Number)
Discharge/Cutoff Settings for open loop control 49V Shutdown Voltage (or nearest voltage)
51.4V Cut-out Battery Voltage
51.8V Cut-in Battery Voltage
98% Charging Efficiency (if required)
5mΩ Battery Resistance
Advanced Settings for closed loop control
Closed loop is only supported by select inverters and requires a custom communication cable.
For detailed instructions on implementation and a full compatibility list please visit our website at: http://fortresspower.com/inverter-guides

USB Logging

FORTRESS POWER eVault Max 18.5 LFP Battery - USB
Logging The eVault Max includes a USB stick for data logging information from the battery when requested by tech support. This should be left unplugged when not in use or it can cause performance issues with the battery.