SKU: 86172395799

Fox ECS 4.03kWh HV Battery Master

Sale price$607.30 Regular price$674.78
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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

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Description

Fox ECS 4.03kWh HV Battery MasterFox ECS 4. 03kWh HV Battery Master Scalable High Voltage Energy Storage The Fox ECS 4. 03kWh HV Battery Master is a high performance lithium ion battery designed to serve as the control module in a scalable energy storage system. This master battery unit ensures seamless communication and energy distribution across the battery stack, making it an essential component for residential and commercial energy storage applications. With a 4. 03kWh capacity

Fox ECS 4.03kWh HV Battery Master – Scalable High-Voltage Energy Storage

 

The Fox ECS 4.03kWh HV Battery Master is a high-performance lithium-ion battery designed to serve as the control module in a scalable energy storage system. This master battery unit ensures seamless communication and energy distribution across the battery stack, making it an essential component for residential and commercial energy storage applications. With a 4.03kWh capacity and high-voltage operation, it provides reliable power management for various energy storage needs.

 

Key Features

  • Master Battery Unit – Required to manage and control a battery stack
  • Scalable to 28.21kWh – Supports up to 6 additional slave batteries
  • High Voltage & High Efficiency – Ensures stable and optimized energy performance
  • 90% Depth of Discharge – Maximizes usable energy output
  • Wide Temperature Tolerance – Designed for performance in various environments
  • Easy Installation – Compact, lightweight design for quick and simple setup
  • CAN/RS485 Communication – Enables seamless integration with inverters and monitoring systems

 

Technical Specifications

  • Nominal Energy: 4,050 Wh
  • Depth of Discharge: 90%
  • Voltage: 52 V
  • Continuous Discharge Rate (Normal Use): 2,875 W
  • Maximum Discharge Rate (5 Minutes): 2,875 W
  • Surge Discharge Rate (15 Seconds): 2,875 W
  • Maximum Charge Rate (5 Minutes): 2,875 W
  • Weight: 38.25 kg
  • Battery Type: Lithium-Ion
  • Part No: FE-HV-ECM-4100

 

Applications

  • Residential Solar Storage – Stores excess solar energy for use during non-sunny periods or peak demand
  • Commercial Power Backup – Provides continuous power to essential equipment during outages
  • Off-Grid Systems – Supports complete energy independence with reliable solar battery storage


What’s Included in the Box?

  • Fox ECS 4.03kWh HV Battery Master
  • User Manual
  • Installation Guide

 

Important Notes

  • This battery must be used in a stack with at least one slave module (minimum of two batteries required).
  • A maximum of seven modules can be stacked together (1 Master + 6 Slaves).
  • If adding battery modules to an existing stack, ensure compatibility with your original battery modules. Contact your technical support provider and upload a photo of your current battery stack via the portal for verification.
  • Connector Type: Ensure the new battery matches the connector type of your existing setup when expanding the system.
  • Installation Requirement: This battery must be installed by a qualified electrician following local wiring standards and safety regulations. Incorrect installation may cause system issues, and Solareon UK is not responsible for any malfunctions resulting from improper installation.

 

Why Choose the Fox ECS 4.03kWh HV Battery Master?

The Fox ECS 4.03kWh HV Battery Master is a powerful, scalable, and high-efficiency energy storage solution. Whether used for solar self-consumption, backup power, or off-grid applications, it delivers exceptional performance, longevity, and seamless system integration to maximize energy efficiency and reliability.

 

Disclaimer:


All product information provided by Solareon UK is intended for general guidance only and may be subject to change or error. Solareon UK does not accept liability for any inaccuracies or omissions in the product specifications displayed. For accurate and detailed technical information, please refer to the manufacturer’s official datasheet available in the 'Downloads' section. We strongly advise confirming all critical details directly with the manufacturer prior to making purchasing or installation decisions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 86172395799

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4.8 ★★★★★
Based on 12 reviews
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C
Verified Purchase
Charles Schultz
Chelsea, US
★★★★★ 5
Bad Product
Size: 20oz
There was no pressure in the can. It would not even inflate a bicycle tire. Be careful there is no amazon refund or return with this item!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
U
Verified Purchase
Unknown1
Lake Worth, US
★★★★★ 5
Good option
Size: 16oz
Fixed multiple car tires
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
C
Verified Purchase
Charlie "Chuck" Brown
Pawtucket, US
★★★★★ 4
IT WORKS, IT REALLY WORKS!
Size: 16oz, Size: 16oz
I carry a tire plug kit in my van. Low pressure light came on and quickly made my way to air pump. Checked out tire and was at least a 5/16" bolt right between tread, very easy to locate (hissing). Inflated tire, prepared plug, pulled out bolt, inserted plug done. Almost home light came on again. Used water soap and plug was still leaking. Tried double plug and still leaking, but would take days to trigger low pressure light. Tire still had decent tread and didn't have facilities to patch, so got a can of fix a flat. I have never believed in this stuff, but it worked. No low pressure warnings for about a month. Around here they would charge $50 for a patch, 2 .25 cent soft rubber plugs and fix a flat, problem resolved!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
M
Verified Purchase
Markus
West Palm Beach, US
★★★★★ 5
Buy it! Lifesaver!
Size: 16oz
Yes, buy it when you don't have a spare tire because you will need it! I live in Florida and flat tires are just part of living here! Saved my life twice already and is absolutely self explaining! Cheaper then a spare tire, lighter than one too! Just throw it in your trunk and best case you will never need it but just in case!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
E
Verified Purchase
E. A. Jacques
Lowell, US
★★★★★ 1
Difficult to use and eventually hose end broke
Size: 24oz, Size: 24oz
I purchased this can of Fix-A-Flat to fix, what I believe, is a rim leak on my truck tire which needs to be filled once every week or so. When I attempted to use the product I let some air out of the tire (down to 25 psi) so it would be easier to dispense the contents. The instructions on the can say to have the valve on the tire at the 6 o'clock...which I did as well. When I attempted to make the connection using the swivel connector on the can's hose it was difficult. The hose on the can is very short and stiff and because it came coiled in the can's lid, did not want to straighten out making connecting it to the tire a very awkward process. It was hard to screw the hose end on the valve without it binding so it felt like it was cross-threading. I have machined aluminum valve caps and they go one very easily so I know the threads on the tire's valve stem are clean. I finally did get it on and when I attempted to dispense the contents it filled the hose but that was about it. I could not see any contents flowing thru the hose at all. I assumed it was not on far enough so I took it off to try again and the contents sprayed everywhere showing it was indeed under pressure....just not going into the tire. After multiple tries the hose end eventually just broke off and stayed on the tire's valve stem. I was able to get it off, but at this point the can is useless to me. Obviously I cannot and will not recommend this product. I have used this product before and had success, but that was when the hose was longer and wired to the side of the can making it much easier to use, versus how they are shipped now. I would recommend going with another product or possible going to a box store (which is what I plan to do) to find one that does not have this design. At the very least, if you do choose to disregard this review, I would try it with the tire's valve stem at the 3 or 9 o'clock position which might make it easier to thread the hose end on to the valve stem,. Also, if you choose to go this route you might just be throwing your money away. I attempted to get a refund from Amazon and was directed to the manufacture's web site. From there you are directed to use the 800 number of leave a general message that is in no way connected to your Amazon purchase. Past experience tells me it will not be an easy process so it looks like I am out the $12.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2024

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