Fortress Power eVault Max 18.5 Quick Start Manual

System Start Up

Before starting up the battery for the first time ensure the
following:
 The system inverter/equipment is De-energized
 eVault 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.
2

Battery ID

• 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.
5
• 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
www.fortresspower.com | (877) 497-6937 | techsupport@fortresspower.com
11-01-21 REV1.0
eVault Max 18.5
QUICK START GUIDE
1
3

Protocol ID

• When configuring closed loop communication
set this ID to match your inverter type.
• Fortress/SolArk RS485 = 1 SMA CAN = 2
• Fortress CAN = 3 Victron CAN = 4
• Schneider RS485 = 5
6
• Turn the DC breaker on the eVault max to
the "On" position
1
After un-boxing, turn on unit by hold-
49+V
ing the push button for ~10 seconds
(wait for the green status light to turn
on)
• Verify Voltage is above 49V on
• Turn battery off if Voltage is
If Voltage is below 48V, contact tech
support
4
120Ω
COM_Parallel
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
• 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
7
ON
OFF
• Turn on the inverter DC input disconnect
• Turn on the eVault Max(s) using the push
button
the LCD Screen
above 49V
ON
OFF
120Ω
120Ω
COM_Parallel COM_Parallel
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
ON
ON
1 2 3 4 5 6 7 8
OFF