Fortress Power eVault Max 18.5 - High Capacity Lithium Battery Backup System

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eVault Max 18.5
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Introducing the Fortress Power eVault Max 18.5 - the ultimate high capacity lithium battery backup system designed to keep your home or business powered up during unexpected outages. With its cutting-edge technology and impressive features, this backup system ensures uninterrupted power supply, giving you peace of mind in any situation.

Features:

1. High Capacity: The eVault Max 18.5 boasts an impressive capacity of 18.5 kWh, providing ample power to keep your essential appliances running for extended periods.
2. Lithium Battery Technology: Utilizing advanced lithium battery technology, this backup system offers superior performance, longer lifespan, and faster charging compared to traditional lead-acid batteries.
3. Seamless Integration: Designed for easy integration with existing solar panel systems, the eVault Max 18.5 seamlessly stores excess solar energy, maximizing your energy efficiency and reducing reliance on the grid.
4. Intelligent Energy Management: Equipped with intelligent energy management software, this system optimizes power usage, ensuring efficient distribution and minimizing wastage.
5. Compact and Space-Saving: The sleek and compact design of the eVault Max 18.5 allows for easy installation in any space, making it ideal for both residential and commercial applications.
6. User-Friendly Interface: The intuitive interface provides real-time monitoring of battery status, energy consumption, and system performance, allowing you to stay informed and in control.

Benefits:

1. Uninterrupted Power Supply: Never worry about power outages again. The eVault Max 18.5 ensures your essential appliances keep running, providing comfort and convenience during blackouts.
2. Enhanced Energy Efficiency: By storing excess solar energy, this backup system reduces your reliance on the grid, helping you save on electricity bills and promoting a greener lifestyle.
3. Reliable and Long-Lasting: With its advanced lithium battery technology, the eVault Max 18.5 offers a longer lifespan and superior performance compared to traditional batteries, ensuring years of reliable power backup.
4. Easy Installation and Integration: The compact design and seamless integration with solar panel systems make installation hassle-free, allowing you to start enjoying the benefits of backup power quickly.
5. Intelligent Power Management: The intelligent energy management software optimizes power usage, maximizing efficiency and reducing energy wastage, ultimately saving you money in the long run.
6. Stay Informed and In Control: The user-friendly interface provides real-time monitoring, empowering you to make informed decisions about your energy consumption and system performance.

Specifications:

    • Capacity: 18.5 kWh
    • Nominal Voltage: 51.2 V (48 V)
    • Recommended Charge Current: 150 A (7.6 kW)
    • Max. Charge Current (Continuous): 180 A (9.2 kW)
    • Max. Discharge Current (Continuous): 230 A (12 kW 30 min)
    • Max. Pulse Current (for 10 sec): 250 A (12.8 kW 5 sec)
    • Charge Temperature: 32°F ~ 120°F (0°C ~ 49°C)
    • Discharge Temperature: -4°F ~ 140°F (-20°C ~ 60°C)
    • Recommended Storage Temperature:
      • 6 months: 14°F ~ 77°F (-10°C ~ 25°C)
      • 3 months: -4°F ~ 113°F (-20°C ~ 45°C)
    • Dimensions: 20.3" x 20.3" x 42.2" (515 x 515 x 1073 mm)
    • Weight: 520 lb
    • Enclosure Protection Rating: IP55
    • Mounting Options: Floor standing
    • Certificates: UL 1642, UL 1973, UL 9540, CEC, SGIP
    • Warranty: 10 years

The eVault Max 18.5 is a powerful battery that can be used for a variety of applications, including backup power, off-grid power, and time-of-use. It is a reliable and easy-to-use system that is perfect for homes and businesses.

Shipping

We use a variety of different shipping vendors for shipping products. Renewable Home Solutions offers free shipping on all Fortress Power products at Renewable Home Solutions expense. Fortress Power does charge for shipping costs on top of the product cost. That's one reason you should buy Fortress Products from Renewable Home Solutions.

Warranty & Return Policy

10 Year Limited Warranty for eVault Max 18

1 – 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 eVault Max Battery (“eVault”), warrants that the
eVault Max will be free from manufacturing defectsin materials andworkmanship until the first to occur of (i) ten years, (ii) completion
of 6,000 cycles at 80% Depth of Discharge (“DOD”), or (iii) completion of 2,000 cycles at 100% DOD (the “Limited Warranty Period”);
provided that the eVault Max 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% DOD
eVault Max 18.5 (48V) 87.2 MWH 48.9 MWH 36.3 MWH
The 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 notwarrant, or guaranteeworkmanship 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 ofsystem 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 oritsreplacement istwelve (12) monthsfrom the date ofshipment from Fortress Power or the remaining term
of the Limited Warranty Period, whichever isgreater.
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
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 are capable of performing 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:
6000 Cycles 3000 Cycles 2000 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 100A per battery 170A per battery 170A per battery
Max Discharge
Current
180A per battery 180A per battery 180A per battery
Recommended Operating Parameters for Fortress Power batteries for 2,000 & 3,000 Cycles:
• Operating temperature range: 32 °F to 120 °F (0 °C to 49°C)
Recommended operating parameters for Fortress Power batteries for 6,000 Cycles:
• Operating temperature range: 50 °F to 110 °F (10°C to 43°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
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
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
2.2 – SIZING QUICK GUIDE
Proper system sizing is vital to the health and proper operation of your battery. Using an inverter with a charging rate in excess of
the maximum recommended charge rate of the battery can cause the battery to malfunction due to safety mechanisms. Therefore,
it is important to size the number of batteries correctly, depending on the power of the inverter. The table in Minimum
Recommended Battery Sizing Standard lists some common inverters and the minimum number of batteries necessary to avoid
malfunction. Please refer to the installation manuals of your battery and inverter for a sizing guide for specific details on proper
sizing.
3 – REGISTRATION FOR LIMITED WARRANTY
To activate this Limited Warranty, the Limited Warranty Registration Form on Appendix B must be completed and forwarded to
Fortress Power pursuant to the instructions set forth in the Limited Warranty Registration Form. The Registration Form may also be
completed on our website at the following link: www.fortresspower/product-warranty page. The Limited Warranty Registration
Form must be authorized and affirmed by Fortress to be effective. Fortress will send confirmation of affirmation within 5 days after
receipt of the completed Limited Warranty Registration Form. This Limited Warranty applies only to the Fortress Power Products
that are (i) registered on the Limited Warranty Registration Form attached to this Limited Warranty and (ii) installed in the Original
Use location which shall be described by inserting the address of the Original Use Location in the space “Address of Installation”
provided in the Limited Warranty Registration Form and name of installer/ distributor or supplier.
4-OBTAINING LIMITED WARRANTY SERVICE
To request warranty service, your installer/distributor/supplier must contact Fortress Power in writing within the Limited Warranty
Period. Fortress Power or its authorized representative will attempt to troubleshoot the Fortress Power Product at the Original Use
Location to determine whetherthe Fortress Power Productis defective. If Fortress Power determinesthat warranty service isrequired,
Fortress Power will issue a Return Material Authorization (“RMA”) number. A request by you for an RMA number requires that you
provide in writing to Fortress Power all the following information:
▪ Proof of date and place of purchase in the form of a copy of the purchase invoice for the original Fortress Power Product.
▪ The Fortress Power Product model number and serial number.
▪ Description of the problem; and
▪ Shipping address for the repaired or replaced equipment.
After receiving the RMA number, you must pack the Fortress Power Product authorized for return, along with the information
described above, in the original Fortress Power Product shipping container or packaging providing equivalent protection. Fortress
Power is not responsible for shipping damage caused by an improperly packaged Fortress Power Product, the repairs this damage
might require, or the cost of these repairs.
If, upon receipt of the Fortress Power Product, Fortress Power determines the Product is defective and that the defect is covered
under the terms of this Limited Warranty, Fortress Power will then approve the Limited Warranty claim and will repair or replace
the Product without charge to the user.
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505 Keystone Rd, Southampton PA 18966 • USA +1 (877) 497 6937 • sales@fortresspower.com • www.fortresspower.com
5 – EXCLUSIONS AND LIMITATIONS
The Limited Warranty does not apply if the Fortress Power Product or any Fortress Power Product part has been modified or
damaged by the following:
▪ Installation or Removal
▪ Alteration, Modification or Disassembly
▪ Normal Wear and Tear
▪ Accident, Misuse or Abuse (Being Dropped, etc.)
▪ Corrosion - Inappropriate Environmental Exposure
▪ Repair or Service Provided by an Unauthorized Repair Facility
▪ Lightning
▪ Operation Contrary to Manufacturer Product Instructions
▪ Fire, Flood, or Acts of God
▪ Excessive Heat or Cold Conditions
▪ Water Damage
▪ Shipping or Transportation
▪ Incidental or Consequential Damage Caused by Other Components of the Power System Including but not
Limited to Inverters, Charge Controllers, Breakers, Bypass Switches, Fuses, etc.
▪ Any Product Whose Serial Number has been Altered, Defaced, or Removed
▪ Continually used and maintained in temperatures below 32°F (0°C) or above 90°F (32°C).
▪ Operation in a Non-Intended Use, or a Use Which Exceeds the Recommended or Permitted Limits or Loads of
the Fortress Power Product.
THIS LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY APPLICABLE TO THE FORTRESS POWER PRODUCT. FORTRESS POWER
EXPRESSLY DISCLAIMS ANY OTHER WARRANTIES OF THE FORTRESS POWER PRODUCT, INCLUDING BUT NOT LIMITED TOANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY WARRANTIES AGAINST LATENT OR HIDDEN
DEFECTS. NO WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL APPLY AFTER THE LIMITED WARRANTY PERIOD.
FORTRESS POWER ALSO EXPRESSLY LIMITS ITS LIABILITY IN THE EVENT OF A PRODUCT DEFECT TO REPAIR OR REPLACEMENT IN
ACCORDANCE WITH THE TERMS OF THIS LIMITED WARRANTY, AND EXCLUDE ALL LIABILITY FOR INCIDENTIAL DAMAGES,
CONSEQUENTIAL DAMAGES, SPECIAL DAMAGES OR PUNITIVE DAMAGES, INCLUDING WITHOUT LIMITATION ANY LIABILITY FOR THE
FORTRESS POWER PRODUCT NOT BEING AVAILABLE FOR USE OR LOST REVENUES OR PROFITS, EVEN IF FORTRESS POWER HAS BEEN
ADVISED OF THE POTENTIAL FOR SUCH DAMAGES. SOME STATES (OR JURISDICTIONS) MAY NOT ALLOW THE EXCLUSION OR
LIMITATION OF CERTAIN WARRANTIES OR DAMAGES, SO SOME OF THE ABOVE EXCLUSIONS MAY NOT APPLY TO YOU.
If there is any inconsistency between this Limited Warranty and any other agreement or statement included with or relating to the
Fortress Power Product or services, this Limited Warranty shall govern. If any provision of this Limited Warranty is found invalid or
unenforceable, itshall be deemed modified to the minimum extent necessary to make it enforceable and the remainder of this Limited
Warranty shall remain valid and enforceable according with its terms.
As required under the laws of the State of California, USA, we advise you that lithium-ion batteries may contain chemicals known to
the State of California to cause cancer, birth defects and reproductive harm. We do not expect that any original end-user will come
into contact with any part of the Fortress Product other than its outer casing.
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505 Keystone Rd, Southampton PA 18966 • USA +1 (877) 497 6937 • sales@fortresspower.com • www.fortresspower.com
6 – CONSUMER PROTECTION AND OTHER LAWS
Some jurisdictions may not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or
consequential damages, so the above limitations or exclusions may not apply to you. These governmental entities may provide for
additional warranty rights and remedies, and the provisions contained in this Limited Warranty are not intended to limit, modify,
take away from, disclaim or exclude any mandatory Warranty requirements provided by these jurisdictions, including certain implied
Warranties. This Limited Warranty gives you specific legalrights, and you may also have otherrights which vary based upon location.
Your acceptance and use of the Fortress Power Product constitutes acceptance of the terms, conditions, and limitations of this
Limited Warranty. The terms, conditions and limitations of this Limited Warranty will supersede any other agreement or document
relating to the subject matter hereof, including, but not limited to, the terms and conditions that are part of a purchase order
covering the Fortress Power Product or other document sent to Fortress Power by you relating to the Fortress Power Product.
7– CONTACTING FORTRESS POWER
Fortress Power, LLC
505 Keystone Road,
Southampton, Pennsylvania, 18966
+1 877.497.6937
warranty@Fortresspower.com
Battyerwww.FortressPower.com
8 – DISPUTE RESOLUTION
If a dispute arises between the original end-use purchaser and Fortress Power with respect to the terms of the Limited Warranty or any
other aspect of the relationship between the original end-use purchaser and Fortress Power, the dispute will be decided by single
arbitrator in an arbitration administered by the American Arbitration Association (AAA) . All AAA fees will be paid by party asserting the
claim. The arbitration proceeding will be conducted in the city or county in which the original end-user resides or maintains their
primary place of business (as applicable).
Instructions for Warranty registration:
You must register your product to validate your Limited Warranty. Please fill out the attached form and
send to warranty@fortresspower.com within 30 days of your purchase. Please include a copy of your
purchase invoice with registration form. The Limited Warranty Registration form can also be filled out on
our website at the following link: www.fortresspower/product-warranty page.
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505 Keystone Rd, Southampton PA 18966 • USA +1 (877) 497 6937 • sales@fortresspower.com • www.fortresspower.com
APPENDIX A – Important Notices
Important notices: Circuit Breakers, Disconnects and Fuses should be employed throughout several points
of a Power storage and generation installation to effectively isolate and protect all components of the system to
safeguard against faults, short circuits, polarity reversals or a failure of any component in the overall system. Fuses,
breakers, wire ratings and values should be determined by established standards and evaluated by certified
electricians, licensed installers, and regional code authorities. Although each Fortress Power Lithium Battery contains
an internal BMS with circuitry that protects the Lithium Ferrite Phosphate cells from overcharge, over- discharge and
excessive load amperage, the Fortress Power Lithium Batteries must always be installed with a charge controller and
the appropriate settings to protect the Fortress Power from open PV voltage and other high voltage charging sources.
The Fortress Power Lithium Battery Management System (BMS) alone will not protect the Fortress Power Lithium
batteries from these extreme electrical phenomena. Failure to adhere to installation protocol will void the Warranty.
CAUTION: All Fortress batteries can only be commissioned when the batteries are fully charged. Failure to
do so will void the warranty.
CAUTION: Only use a Fortress Power approved LFP chargerif ancillary charging isrequired before installation,
testing, or troubleshooting. Failure to use a Fortress Power approved LFP charger will damage the battery and void
the warranty.
CAUTION: Charging LFP batteries at temperatures below freezing. Do not attempt to charge the battery
below 32 F (0 degrees C). Attempts to charge at subfreezing temperatures can adversely affect SOH and cycle life and
will void the Warranty. If the battery must be charged below 32 F (0 degrees C), the rate of charge must be at no
more than 5% of the battery’s rated capacity (C/20).
CAUTION: Improper sizing and/or charge parameters can cause the battery to malfunction. It is necessary
to both correctly size a system and enter the correct charge parameters into your charge controller and/or inverter.
Please see sections 2.1 and 2.2 for these topics. Failure to check these may result in a dysfunctionalsystem.

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.

Downloads
Total Energy (kWh)18.5
Capacity[Ah]360
Nominal Voltage [V]51.2 (48)
Voltage Range[V]48-55
Recommended Charge Current [A]150
Max. Charge Current (Continuous)[A]180
Max. Discharge Current (Continuous)[A]180
Max. Pulse Current (for 10 sec) [A]200
Charging Temperature[F]32 to 120
Discharging Temperature[F]14 to 77
Dimension [H xW x D, inch]20.3 x 20.3 x 42.2
Weight[lbs]520
Enclosure Protection RatingIP55
Mounting optionsFloor standing
CertificatesUL 1642, UL1973, UL9540
Warranty10 Years
ScalabilityMaximum 20 in Parallel (370 kWh)
CommunicationCAN/RS485
High Current Circuit Breaker250A
Efficiency>98%

The Fortress Power eFlex 5.4kHw Battery Can Be Used in A Variety of Applications

The eFlex 5.4 Lithium Battery Storage is a versatile and powerful battery that can be used in a variety of applications. It is ideal for residential, commercial, railway, military, and telecommunication applications. It can also be used in solar energy installations and large grid-scale energy storage.The eFlex 5.4 Lithium Battery Storage is a compact and easy-to-install unit. It has a Lithium Iron Phosphate (LiFeP04) battery chemistry, which is targeted for use in power tools, electric vehicles, solar energy installations, and large grid-scale energy storage.The eFlex 5.4 Lithium Battery Storage is a reliable and durable battery. It has a long cycle life and can withstand harsh weather conditions. It is also backed by a 10-year warranty.

The eVault can provide up to 18.5kWh of backup power for your home during a power outage. This can be enough to power essential appliances and lights for several hours.

The eVault can be used to power your home or business off-grid, with a maximum PV array input of 20 kW. This can be a great option if you live in an area that is not serviced by the grid.

The eVault can be programmed to use solar power during off-peak hours, when electricity rates are lower. This can help you save money on your electricity bill.

The eVault can be used to participate in a virtual power plant (VPP), which is a group of distributed energy resources that can be aggregated together to provide grid services. This can help you earn money for your solar power system.

The eFlex 5.4 Lithium Battery Storage can be used to power telecommunications equipment. It can also be used to store energy for backup power and load leveling.

The eVault can be used with net metering, which is a program that allows you to export excess solar power to the grid and receive credits on your electricity bill.

The eVault can be used to control your home's energy usage, such as turning off lights or appliances when you're not home. This can help you save energy and money.

The eVault can be used to create a microgrid, which is a small, self-contained power grid that can be used to power a home, business, or community during a power outage.

Compatible With Most Inverters on the Market including the following brands:

The Fortress Power eVault 48 Volt Battery is Compatible with most inverters on the market.

Fortress Power

FAQ

View frequently asked questions for Fortress Power Products. Any questions not answered here, contact us by email, chat, or by phone: 1 (302) 244-7703

Does energy storage work well with my solar system?

Yes. On the grid? Absolutely! Energy storage adds a lot of value to your solar systems. It keeps your solar system operating when your utility service is interrupted. Without energy storage, your PV system will be forced to shutdown when the grid is off.

If you live off grid, energy storage enables you to use the clean solar energy to power your home day and night.

Fortress Power also knows you’re a fan of conservation—energy storage saves both your surplus solar energy and your cash since it reduces on grid energy dependence.

Can I use energy storage without solar panels?

Absolutely. For on grid clients, a home energy storage unit  stores energy from your electricity provider. If an outage occurs, home energy storage can provide up to 24 hours of potentially life-saving power. Need more reassurance? Fortress Power offers batteries with larger storage capabilities, completely customizable to your needs. And, like you, we appreciate saving money. When electricity is at its lowest daily rate, our smart energy storage units use that period to charge. When peak electric use occurs, our energy storage units can discharge power to suit your lifestyle.

What about power outage protection?

Power interruptions shouldn’t disrupt your schedule. An energy storage system will keep your solar system operating during grid outages. When paired with solar panels, an energy storage system supplies unlimited energy delivery. The solar panels power your home during the day and use any excess power to charge the battery. At night, the system keeps your space bright. When used without solar panels, power outage support is dependent on battery size and your energy use. Batteries providing at least 12 hours of backup power are safest.

Are home energy storage systems financially beneficial?

You can use the energy storage to shelve your peak usage. When electricity is at its lowest daily rate, our smart energy storage uses that period to charge. During the peak periods, our energy storage system can power your home, reducing your electricity bill. Clients with solar panel installations enjoy a faster return on investment.

What is Lithium batteries lifespan?

We provide a 10 year product warranty and guarantee up-to 6000 cycles, whichever comes first. Speak to our representatives for details.

Why choose Lithium Iron Phosphate over Lithium Ion batteries?

We use Lithium Iron Phosphate (LiFePo4; Lithium Ferro Phosphate) technology – the safest lithium technology in the industry. It’s environmentally friendly and can be fully recycled. While Many other competitors, such as LG Chem, Tesla and Panasonic use cobalt-based Lithium-Ion battery, which has a very poor thermal stability. Any short circuit or cell-breakage can cause thermal runaway and catch fire.

And comparatively, Lithium Iron Phosphate battery deliver substantially higher amount of life cycles. We guarantee up-to 6000 cycles, while LG Chem, Tesla and Panasonic provide less than 3000 cycles.

Are Fortress Lithium batteries widely compatible?

Yes, our batteries are designed to work with all 48V chargers and hybrid inverters. We work well with Schneider, Outback, Magnum, Sol-Ark, Victron, Morningstar and so on. Please Check out this Inverter Compatibility list.

Fortress Power

Fortress Power

Fortress Power is a company that designs, manufactures, and sells lithium iron phosphate (LFP) batteries for energy storage applications. Their batteries are known for being safe, long-lasting, affordable, and easy to install and maintain. Fortress Power batteries can be used for a variety of applications, including backup power, time-of-use, self-consumption, and off-grid.

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