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Description
2x Fox ESS EP11 20.72kWh Batteries (combiner box not included)2x Fox ESS EP11 Battery for 20. 72kWh Not Including Combiner Box with 10 Year Warranty The Fox ESS EP11 Battery is a high capacity, scalable energy storage solution designed for residential and commercial applications. This setup includes two EP11 batteries, providing a total storage capacity of 20. 72kWh for enhanced backup power and self consumption optimization. Built with LiFePO4 prismatic cell technology, these batteries ensure high efficiency,
2x Fox ESS EP11 Battery for 20.72kWh Not Including Combiner Box with 10-Year Warranty
The Fox ESS EP11 Battery is a high-capacity, scalable energy storage solution designed for residential and commercial applications. This setup includes two EP11 batteries, providing a total storage capacity of 20.72kWh for enhanced backup power and self-consumption optimization. Built with LiFePO4 prismatic cell technology, these batteries ensure high efficiency, long cycle life, and superior safety.
This package does not include the required combiner box (FE-JUNBOX-HV), which is necessary to stack multiple batteries in parallel.
Key Features:
- Total Capacity of 20.72kWh – Ideal for high-demand energy storage applications
- 384V High-Voltage System – Improves efficiency and minimizes energy loss
- Scalable System – Supports up to 4 units in parallel for further expansion
- IP65 Rated – Suitable for both indoor and outdoor installation
- Natural Convection Cooling – Passive cooling for silent operation
- Long Cycle Life – Over 4,000 cycles for extended durability
-
10-Year Warranty – Reliable and long-term performance
Technical Specifications:
- Battery Type: LiFePO4 Prismatic Cell
- Nominal Energy (Total System): 20.72kWh
- Nominal Voltage: 384V
- Operating Voltage Range: 348V – 438V
- Max Charge/Discharge Current: 27A per battery
- Recommended Charge Current: 13.5A per battery
- Peak Discharge Current: 65A (60s) per battery
- Peak Charge Current: 32.4A (5s) per battery
- Round-Trip Efficiency: ≥95%
- Depth of Discharge (DoD): 90%
- Cycle Life: ≥4,000 cycles
- Communication: CAN
- Display: LED*5
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Scalability: Maximum 4 units in parallel
Power Ratings:
- Continuous Discharge Rate (Normal Use): 10,368 W
- Maximum Discharge Rate (5 Minutes): 10,368 W
- Surge Discharge Rate (15 Seconds): 24,960 W
-
Maximum Charge Rate (5 Minutes): 10,368 W
Operating Conditions:
- Installation Location: Indoor/Outdoor
- Operating Temperature:
- Charge: 0°C to 55°C
- Discharge: -10°C to 55°C
- Storage Temperature: 0°C to 35°C
- Cooling Method: Natural Convection
-
Humidity: 5% – 95% (Non-condensing)
- Altitude: Max. 2,000m
Mechanical Characteristics
- Dimensions (Per Battery, WHD): 710mm × 625mm × 147mm
- Weight (Total System): 198 kg
Certifications & Safety Standards:
- Safety: IEC62619
- EMC Compliance: EN IEC 61000-6-1/3
- Transportation Standard: UN38.3
- Ingress Protection: IP65
What’s Included in the Box?
- 2x Fox ESS EP11 10.36kWh Batteries
- User Manual
- Installation Accessories
Important Notes:
- Combiner Box Required – This package does not include the FE-JUNBOX-HV, which is necessary for stacking multiple batteries in parallel.
- Scalable System – Can be expanded further by adding up to 4 batteries in parallel.
- Professional Installation Required – Must be installed by a qualified electrician.
-
Compatible with Fox ESS H1, KH, H3, H3-Pro, and US Series inverters.
The 2x Fox ESS EP11 Battery System provides a high-efficiency, scalable energy storage solution, making it ideal for homeowners and businesses looking to maximize self-consumption, backup power, and energy independence.
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:
- 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
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Quickly accepted by our local hummingbirds.
Size: 64 Fl Oz (Pack of 1), Style: 64 oz Ready To Use
I used this in a red hanging hummingbird feeder on a second-floor shaded balcony. The feeder had only been up a short time, and the nectar was accepted quickly. I observed hummingbirds visiting, perching, and drinking from the active lower tiers, so the product clearly did not discourage feeding.
What I like most is the convenience. It is ready to pour, clear, and does not require mixing sugar and water. I also appreciate that it is not dyed red. The feeder itself provides enough red visual attraction, so colored liquid is not necessary. For a small balcony feeder, I only needed to fill the reservoirs about halfway, which helped keep the nectar fresh and reduced waste.
A few practical notes: I still treat this like any hummingbird nectar and replace it regularly rather than letting it sit for many days. Even in shaded, mild weather, I would rather keep the feeder clean and fresh. The bottle should also be stored properly after opening.
Overall, this is a good option if you want a simple ready-to-use nectar without mixing your own. Homemade sugar water is cheaper, but this is convenient, clean-looking, and in my case the hummingbirds used it. I would recommend it for someone who wants an easy pour-and-fill option, especially for a smaller feeder or balcony setup.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Easy to use. Stays sealed. Stays charged.
Size: 12 Combo Travel Size
I had previously bought packing bags in a store — the kind the you had to seal and then roll/squish the air out of one end of the bag. It really took 2 people to remove most of the air. I took them to Mexico, and they were just OK.
I switched to these vacuum bags before our family ski trip. What a great purchase! This set includes multiple sizes, which worked well for both everyday clothes and bulkier cold-weather gear. They also fit well inside different size suitcases. One tip: Fill the bag, seal it shut, squish some air out, but then suck the final air out with the bag already inside your suitcase. You can "massage" the clothes and guide how the bag flattens out for a really efficient use of your suitcase space. The organization you can achieve is really impressive.
The bag material and valve is tough enough to not allow any air leaks. The red "glides" they provide make sure the seal is solid and easy to achieve. And the system is simple enough that I suspect that elementary kids or people with lower dexterity could operate it (my teens certainly had no issues packing themselves).
After returning home, I folded all the bag along their original fold lines, charged up the "sucky thing" (which still held 75% of it's charge after being used at least 20 times), and tucked it all neatly in our travel drawer, ready for our international trip next month.
Great value. High quality. I'd even go so far as to say they're fun to use.
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Reviewed in the United States on February 27, 2026
★★★★★ 5
Travel bags
Size: 12 Combo Travel Size
Perfect packing bags. I’m using them for a trip to Alaska. The pump works easily . I tested them out and the air retention is perfect.? They are not too thick and will not take up space. The material seems like it will hold up without ripping. I will be using them often. They come in different sizes which work perfectly with different items.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
These are a travel must!
Size: 15 Combo Travel Size
We recently took a trip to Japan and South Korea with our 3 kids, and needed to bring all their clothes for 2 weeks, with as few suitcases as possible.
These bags were a life saver!
We were able to fit so much more stuff in our suitcases with these bags. I don’t know how we would have brought everything without them. We would have had to bring at least one, probably two suitcases more.
Easy to use - the vacuum is compact so you can bring it with you, but super powerful and works quickly. Remember to charge it after you use it for when you pack back up. But, you can manually push out the air as well if you’re in a pinch.
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Reviewed in the United States on May 4, 2026
★★★★★ 4
More pros than cons, very convenient, but durability is an issue.
Size: 15 Combo Travel Size
Pros: I think that this is a good product. I've had it for several weeks and travel every week for work. It's a good design and the vacuum pump is ergonomic and reliable, in my experience. Charges relatively quickly at home and I'm not sure how long the charge lasts, because it's convenient with a USB-C port, so I charged whenever the charge got to 3 bars. My experience is that dress shirts maintain the pressing if folded and packed neatly. They're creased, but hang them in the hotel bathroom and the steam from a shower loosens the wrinkles nicely.
Cons: durability. The bags are pretty thin and after 3 or 4 trips the seal in the bag(s) can become compromised. I suspect the leaks are tiny and in the actual bag vs. the seal. With regular use, this was in only two of the fifteen bags. The double zip lock is really durable.
FOR CAMPING: they were great for motorcycle camping, however the durability became an issue. I was camping along a lake and took some care with the bags, but admittedly was a little harder on them than I could have been. I took extra bags just in case, and am glad I did. Three of the 6 bags I took slowly lost the vacuum. If you're using them for camping, pack extras. They're inexpensive enough to continue to buy replacements periodically and you do get a lot.
TIPS: pack the vacuum in the suitcase with the bags. Pack the bags with a complete outfit for each day. The temptation is to pack shirts in one bag, socks/underwear in the other, etc. It's more difficult to repack dirty clothes that way, but if you have each day in its own bag you just use each one for a dirty laundry bag.
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Reviewed in the United States on May 19, 2026