Fortress Power eFlex 5.4kWh | G2 Lithium Iron Phosphate Battery with Wall Mount Bracket | High-Performance Energy Storage Solution | LFP Solar Battery

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10 Year Limited Warranty for eFlex 5.4 kWh Battery

LIMITED WARRANTY COVERAGE
Subject to the terms and condition set forth below, Fortress Power, LLC, a Pennsylvania limited liability company (“Fortress Power”),
as the distributor and supplier of the Fortress Power Lithium Ferrite Phosphate eFlex Battery (“eFlex”), warrants that the eFlex will be
free from manufacturing defects in materials and workmanship until the first to occur of (i) ten years, (ii) completion of 8,000 cycles
at 80% Depth of Discharge (“DOD”), or (iii) completion of 3,000 cycles at 100% DOD (the “Limited Warranty Period”); provided that
the eFlex has been installed by a licensed professional using the Fortress Power Installation Manual and the Fortress Power Integration
Guide (both available at www.fortresspower.com/resources).
Table 1.0 –Total Energy Throughput According to Maximum Depth of Discharge (DOD) for each Fortress product.
Fortress Battery Model 80% DOD 90% DOD 100% DODeFlex 5.4 (48V) 25.6 MWH 14.4 MWH 10.7 MWHThe term of the limited warranty begins on the original date of purchase of the Fortress Power Product as indicated on the Limited
Warranty Registration Card submitted to Fortress Power. The Limited Warranty applies only to the original end-use purchaser of the
Fortress Power Product and is transferable only if the Fortress Power Product remains installed in the Original Use Location. Fortress
Power does not warrant, or guarantee workmanship performed by any person or firm installing the Fortress Power Product. The Limited
Warranty does not cover the cost of installation, removal, shipping, or reinstallation. The Limited Warranty does not cover defects in
design or installer error including, but not limited to, reverse polarity or misuse of system wide equipment or inaccurate programming
of all ancillary equipment in your system.
The Limited Warranty applies only to a Fortress Power Product (a) purchased from Fortress Power or an authorized Fortress Power
distributor, dealer, or reseller and (b) and properly installed by a licensed professional using the Fortress Power Installation Manual
and the Fortress Power Integration Guide.
The liability of Fortress Power under this Limited Warranty shall be limited to the repair or replacement of the Fortress Power Product,
at Fortress Power’s sole discretion. Fortress Power will not be responsible for any other types of losses or costs of any type pertaining
to the use of its products including consequential damages, lost profits, or the like. If the Fortress Power Product is found to be defective
as a result of any manufacturing defect in materials and workmanship during the Limited Warranty Period, Fortress Power, in its sole
discretion, will (i) repair the Product, (ii) replace the Product purchased with same model, (iii) replace the Product with an equivalent
Fortress Power Product, or (iv) credit the remaining depreciated value of the Product to be applied to the purchase of a new Fortress
Power Product. If a Fortress Power Product is replaced, the defective Fortress Power Product will become the property of Fortress
Power and must be returned to Fortress Power free of any third-party ownership claims. The Limited Warranty period for any repaired
Fortress Power Product or its replacement is twelve (12) months from the date of shipment from Fortress Power or the remaining term
of the Limited Warranty Period, whichever is greater.
NOTE: PLEASE SEE THE IMPORTANT NOTICES IN THE APPENDIX (Appendix A)
IMPORTANT The Fortress Power Installation Manual and the Fortress Power Integration Guide for Battery Parameter Setting with various Inverters/Chargers are available to download at
https://www.fortresspower.com/resources/
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505 Keystone Rd, Southampton PA 18966 • USA +1 (877) 497 6937 • sales@fortresspower.com • www.fortresspower.com
2 – GUIDE FOR OPERATING PARAMETERS
Although Fortress Power 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 Limited Warranty, the following guidelines should be followed:
2.1 – CHARGE PARAMETERS
Please note that closed-loop communication needs to be integrated for certain installations between batteries and inverters when
battery capacity is equal to or less than twice the rated power of the inverter.
Charger/Inverter configuration recommendation for best performance, please refer to Minimum Recommended Battery Sizing
Standard:
8000 Cycles 5000 Cycles 3000 Cycles
Equalized Support Off Off Off
Capacity Limit Please refer to the product datasheet
Equalized Voltage Every 30 days
Recharge Voltage 52V 51V 47
Bulk Voltage 54.4V 54.6V 55.5V
Absorb Voltage 54.4V 54.6V 55.5V
Low Battery Cut Out
Voltage ** 50.7V 48.4V 44
High Battery Cut
Out Voltage 61V 61V 61V
Float Voltage Turn off, if possible 54.4V
Max Charge Current eFlex: 40A per battery eFlex: 55A per battery eFlex: 55A per battery
Max Continuous
Discharge
Current
eFlex: 60A per battery eFlex: 60A per battery eFlex: 60A per battery
** The Low Battery Cut Out voltage can only be set up as high as 48V in the schneider inverter. In this circumstance, please set up
the system in the closed loop configuration via Schneider InsightHome gateway and use the percentage to regulate the battery
charge and discharge.
Recommended Operating Parameters for Fortress Power batteries for 3,000 & 5,000 Cycles: • Operating temperature range: 32 °F to 114 °F (0 °C to 45°C)
Recommended operating parameters for Fortress Power batteries for 8,000 Cycles: • Operating temperature range: 50 °F to 100 °F (10°C to 38°C)
If the inverter is not listed in Minimum Recommended Battery Sizing Standard, the battery capacity must be equal to or more than
twice the rated power of the inverter. For another battery sizing questions, please contact our technical support team at
techsupport@fortresspower.com
Please note, you must verify actual parameters as specified on the Fortress Power Integration Guide
for your specific inverter. You can download the integration guides on our Homepage in the Resource Center
under Inverter Integration Guides (https://www.fortresspower.com/resources/).
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505 Keystone Rd, Southampton PA 18966 • USA +1 (877) 497 6937 • sales@fortresspower.com • www.fortresspower.com
Do not expose battery to high temperatures. Fortress Power Lithium Batteries should be stored out of direct sunlight under the
following temperature conditions.
Storage Temperature (Min./Max.): 41°F/5°C – 95°F/35°C Relative Humidity (Min./Max.): 5%~75% RH

Returns

Returns only for RMA has to be authorized first by filling out a support ticket. You can do this by contacting us at info@renewablehomesolutions.com. They are handled through a support portal for a truly defective product.

Please inspect all material carefully upon arrival and write down any visible damages that may have occurred on the delivery note when the carrier is present. The carrier requires any remarks of visible damage to be included on the delivery note. Any concealed damages must be reported within 3 days of delivery.

Datasheets

eFlex Data Sheet
eFlex SPANISH Data Sheet
eFlex SPANISH Brochure

Installation Guides / Warranty

eFlex Owner / Installation Manual
Inverter Guides
Firmware 
Warranty

Certifications

UL9540 / UL1973 Certificate
UL9540a Large Scale Fire Test Report

Racking Details

DuraRack Manual
Flexrack Technical Notes
Customer Server Rack Guide