505 Keystone Rd, Southampton, PA 18966, USA
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(877) 497 6937
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www.fortresspower.com
12
7.3 Discharging
⚫
Do not discharge battery below operating voltage
⚫
Do not discharge battery at rates greater than maximum continuous current
⚫
Do not operate in conditions that will exceed the internal operating temperatures of the battery
7.4 Parameter set up guide in Charger/Inverter
Before commissioning the energy storage system, the appropriate controller and inverter settings must
be programmed per the manufacturer’s recommendations. Consult the manufacturer’s manuals and/or
access technical support (Darfon, Schneider, Outback, SMA, Sol-Ark, Magnum, Outback).
Although Fortress Lithium batteries can perform at very high rates and depths of discharge within a
very wide temperature range, in order to achieve extended life cycles and to comply with the Warranty,
the following guidelines should be followed:
Understand Charge Stage
1)
Bulk Charge: Charge at Constant
Current (CC) to Bulk/Absorb Voltage
2)
Absorption Charge: Maintain Constant
Bulk/Absorb Voltage
(CV)
3)
Terminate when charge current drops
below 0.05C and
4)
Unlike Lead Acid batteries, Lithium
Ferro Phosphate batteries do not require
Float Charge
Charger/Inverter configuration recommendation for best Performance:
Schneider/outback/ SMA/Sol-Ark
3000 Cycles
(90% DoD)
6000 Cycles
(80% DoD)
Equalized Support
Off
Off
Capacity Limit
LFP-5:100 Ah
Equalized Voltage
Off
Off
Recharge Voltage
51.5V
Bulk Voltage
54.6V
54.4V
Absorb Voltage
54.6V
54.4V
Low Battery Cut Out Voltage
50.3V
50.7V
High Battery Cut Out Voltage
61V
61V
Float Voltage
Turn off, if possible
54.4V
Max Charge Current
80A per battery
50A per battery
Max Discharge Current
80A per battery
50A per battery
The Battery Parameter Setting Guides with Schneider and Outback Inverters/Chargers are available to
download on www.fortresspower.com/Resource
