Rev A 08-28-21
Fortress Power - Sol-Ark LFP Legacy Series Inverter Guide
Introduction
Battery Datasheets / Manuals:
See
“
Downloads
”
section of individual product pages
Email:
Discord Support:
https://discord.gg/kxX6QMjKFw
Phone:
(877) 497-6937 x 2
Hours:
9:00AM - 6:00PM EST
–
Use Discord for After Hours / Weekends
Warranty Submittal:
https://www.fortresspower.com/warranty/
Step 1
–
Getting Started.
Turn each battery on individually while unpacking the batteries and note the voltage
of each battery as well as the serial numbers. If installing parallel batteries, use external 80A fuses (see Victron Lynx).
The batteries must be charged individually to /- 0.5V of each other before commissioning.
Pro tip:
If a BMS error occurs when powering up the inverter, turn the batteries off. Connect the inverter and any
battery breakers so power can flow from the batteries to the inverter. Turn the batteries back on again, and then
turn the inverter back on again. Th
is will allow the batteries to trickle charge the inverter i.e. “pre
-
charge”.
You may
need to repeat this process up to three times to precharge the inverter enough for it to power up.
Step 2
–
Program the first three tabs in the Battery Setup menu.
Touch the gear icon on the main SolArk home screen to find the Battery Setup menu. Program the
batt/charge/discharge tab as shown below.
Use Batt V charged
–
Use this option with
the LFP series batteries.
Use Batt % Charged
–
Do not use this
option.
Activate Battery
–
Does not actually
activate the battery but instead helps the
battery after deep discharges.
Max A Charge / Discharge
–
Start with the
settings recommended on the right. If they do
not provide enough instant power for the end
user, join our Discord group for adjusted
settings.
Join Our Discord Chat
0mV/C/Cell
0 mV/C/Cell
80A
100A
100 Ah per LFP5
200 Ah per LFP10
300 Ah per LFP 15
✓
