Fox ESS is a Chinese inverter and battery maker, founded in 2019 and based in Wenzhou, that entered Australia in 2021 with solar inverters and added home batteries in 2022. As at November 2026 it sells hybrid inverters, the EQ4800, CQ7 and Power Cube batteries and EV chargers here, with local offices in Melbourne and Sydney. Fox ESS batteries are among the cheapest per kWh, owners rate them 4.7 out of 5 on SolarQuotes, and the main worry is a short local track record.
This guide is independent desk research. Solar Cobber did not test any Fox ESS product, did not contact the company and was not paid by it. It is the hub for our Fox ESS pages: the Fox ESS battery review, the Fox ESS battery price guide and the FoxESS Cloud app guide.
Source: SolarQuotes, November 2026; Fox ESS company profile, November 2026.
Key facts
- Fox ESS was founded in 2019 and is headquartered in Wenzhou, Zhejiang, China, according to SolarQuotes and the company’s own history page (checked November 2026).
- SolarQuotes describes Fox ESS as a subsidiary of Tsingshan Holding Company, and the company’s Australian offices are in Springvale, Victoria and St Leonards, New South Wales (SolarQuotes, November 2026).
- Fox ESS batteries hold a 4.7 out of 5 average from 341 ratings on SolarQuotes as at November 2026, and its hybrid inverters hold 4.8 from 233 ratings.
- SolarQuotes lists the Fox ESS EQ4800 at about A$290 per usable kWh and the Fox ESS CQ7 at about A$237 per usable kWh for a 28 kWh class stack, after the federal discount and before installation (12 November 2026).
- Fox ESS batteries carry a 10-year warranty in Australia, ending at 70% capacity or a throughput cap, and only an installer or Fox ESS staff can lodge a claim.
- We found no Australian product recall for Fox ESS batteries or inverters as at November 2026, but Fox ESS has a shorter Australian record than GoodWe, Fronius or Sungrow.
Fox ESS at a glance
Fox ESS is a private company with a pending stock market listing, and the key corporate facts are below. The table was checked in November 2026 and separates published facts from company claims.
| Item | Detail | Source |
|---|---|---|
| Founded | 2019 | Fox ESS company profile; SolarQuotes |
| Headquarters | Wenzhou, Zhejiang, China | Fox ESS company profile; SolarQuotes |
| Ownership | Subsidiary of Tsingshan Holding Company (SolarQuotes); registered in China as Maitian Energy (pv magazine) | SolarQuotes; pv magazine, 5 October 2026 |
| Listing | Applying for a Shenzhen ChiNext listing to raise CNY 1.66 billion; approval pending as at 5 October 2026 | pv magazine Australia |
| Financials (prospectus) | 2025 revenue CNY 6.53 billion, net profit CNY 1.12 billion, more than 99% of main-business revenue from outside China | pv magazine Australia, 5 October 2026 |
| Australian entry | 2021 (inverters), 2022 (batteries), 2024 (EV chargers) | SolarQuotes |
| Australian offices | Springvale VIC and St Leonards NSW; phone 1300 377 369 | SolarQuotes |
| Local team | More than 30 specialists, company says | Fox ESS press release, Smart Energy 2026 |
| Monitoring app | FoxCloud 2.0 (web and iOS and Android app) | Our FoxESS Cloud guide |
| Product lines in Australia | Hybrid and string inverters, EQ4800, CQ7 and Power Cube batteries, A Series and L Series EV chargers | Fox ESS; SolarQuotes |
Market position is a company claim. Fox ESS says Sunwiz ranked it first for installed capacity in March 2026 and that it installed more than 25,000 systems in April 2026 (its press release at Smart Energy 2026), and its company profile reports a record month of 25,000 storage systems totalling 1.05 GWh. We could not open the Sunwiz data itself, so treat these as company-reported figures.
The Clean Energy Council approved batteries list shows all eight EQ4800 configurations (L2 to L9) as approved from 14 November 2024 to 14 November 2027, as we confirmed for our battery review. Check the list yourself for the specific model on your quote, because listings change.
Fox ESS batteries in Australia
Fox ESS sells three main high-voltage battery families here, all DC-coupled and all needing a Fox ESS hybrid inverter. Capacity ranges below are usable kWh as listed by SolarQuotes (November 2026) and the Fox ESS Australian EQ4800 datasheet (V1.3, August 2026).
| Battery | Module or format | Usable capacity range | Warranted throughput (SolarQuotes) |
|---|---|---|---|
| EQ4800 | 4.66 kWh modules, 2 to 9 per stack | 9.32 to 41.93 kWh | 4.2 MWh per kWh |
| CQ7 | Stackable high-voltage modules | 13.92 to 48.72 kWh | 5.08 MWh per kWh |
| Power Cube | All-in-one stack | 16.38 to 49.14 kWh | Not confirmed |
| EP12 Plus | Older all-in-one | Not confirmed | 3.7 MWh per kWh |
The EQ4800 is the best documented, with a full specification and price breakdown in our Fox ESS battery review. The chart shows how wide Fox ESS ranges are against rivals we have reviewed.
- Smallest stack
- Largest stack
Source: SolarQuotes, November 2026; Fox ESS EQ4800 datasheet V1.3; Solar Cobber reviews.
View the data as a table
| Smallest stack | Largest stack | |
|---|---|---|
| Fox ESS Power Cube | 16.38 kWh | 49.14 kWh |
| Fox ESS CQ7 | 13.92 kWh | 48.72 kWh |
| Sigenergy SigenStor | 5.20 kWh | 46.80 kWh |
| Fox ESS EQ4800 | 9.32 kWh | 41.93 kWh |
| GoodWe Lynx F G2 | 6.40 kWh | 28.80 kWh |
| Sungrow SBR | 6.40 kWh | 25.60 kWh |
Fox ESS offers the largest single stacks of the brands compared, with the CQ7 and Power Cube reaching about 49 kWh against 25.6 kWh for the Sungrow SBR.
Fox ESS inverters in Australia
Fox ESS sells a hybrid range, which combines solar and battery handling in one unit, and a string range for solar only. SolarQuotes lists these models as sold in Australia (November 2026).
| Series | Phase | Power range (kW) |
|---|---|---|
| H1-G2 hybrid | Single | 3 to 6 |
| KH hybrid | Single | 7 to 10.5 |
| H3 Smart hybrid | Three | 5 to 15 |
| H3 Pro hybrid | Three | 15 to 30 |
| H3 Plus | Three | 50 to 125 |
| F Series string | Single | 3 to 6 |
| G Series string | Single | 7 to 10.5 |
| T Series (G3) string | Three | 3 to 25 |
- Smallest model
- Largest model
Source: SolarQuotes Fox ESS inverter review, November 2026.
View the data as a table
| Smallest model | Largest model | |
|---|---|---|
| H3 Plus | 50.0 kW | 125.0 kW |
| H3 Pro | 15.0 kW | 30.0 kW |
| H3 Smart | 5.0 kW | 15.0 kW |
| KH | 7.0 kW | 10.5 kW |
| H1-G2 | 3.0 kW | 6.0 kW |
Most homes use the H1-G2 or KH on single phase, or the H3 Smart on three phase; the H3 Plus is a commercial-scale unit. The EQ4800 pairs with the H1-G2, KH, H3 Smart and H3 Pro per Fox ESS’s March 2026 compatibility list. If you are choosing between inverter types, read what a hybrid inverter is and our comparison of string inverters and microinverters. For general inverter picks, see best solar inverters in Australia.
Fox ESS also sells A Series (7.3, 11 and 22 kW) and L Series (7.3 and 11 kW) EV chargers, according to its Smart Energy 2026 press release. Our home EV charger guide covers the wider market.
Fox ESS prices in Australia
Fox ESS does not publish retail prices, so every price is an installer or retailer figure. Our Fox ESS battery price guide holds the full list. The headline number is SolarQuotes hardware pricing, which strips out installer differences. All figures include the federal discount and GST and exclude installation, as at 12 November 2026.
| Fox ESS EQ4800 size | Approx. price | Price per usable kWh |
|---|---|---|
| 13.98 kWh | A$4,000 | A$286 |
| 23.30 kWh | A$6,500 | A$279 |
| 27.96 kWh | A$8,100 | A$290 |
| 37.28 kWh | A$12,400 | A$333 |
| 41.94 kWh | A$13,000 | A$310 |
View the data as a table
| Price per usable kWh | |
|---|---|
| 14 kWh | A$286 |
| 23 kWh | A$279 |
| 28 kWh | A$290 |
| 37 kWh | A$333 |
| 42 kWh | A$310 |
The price per kWh is lowest at 23 kWh and rises above 28 kWh because the federal discount, which now tapers to 15% above 28 kWh, almost stops there. See the federal battery rebate guide for the working. Reviewers quoted by SolarQuotes report paying A$3,995 to A$13,100 for a whole solar system from 5 kW to 20 kW with a Fox ESS inverter, depending on hardware and installation difficulty.
Fox ESS vs rivals on price per kWh and per warranted MWh
Fox ESS is cheaper per kWh than Sungrow and Tesla and close to Sigenergy. We also worked out something rivals do not publish: the hardware cost of each MWh of warranted throughput, which shows what you pay for the energy the warranty actually covers.
Solar Cobber calculation: price per usable kWh divided by warranted MWh per kWh. EQ4800: A$290 / 4.2 = A$69. CQ7: A$237 / 5.08 = A$47. SigenStor: A$267 / about 3.0 = about A$89. Prices are SolarQuotes hardware prices; throughput is from SolarQuotes (Fox ESS) and our SigenStor review.
Source: SolarQuotes, 12 November 2026; Fox ESS warranty terms as reported by SolarQuotes; Solar Cobber SigenStor review. Sungrow SBR and Tesla Powerwall 3 are excluded because their warranties allow unlimited cycles for self-use.
View the data as a table
| A$ per warranted MWh | |
|---|---|
| Sigenergy SigenStor | A$89 |
| Fox ESS EQ4800 | A$69 |
| Fox ESS CQ7 | A$47 |
On this measure the CQ7 is the cheapest of the three. Price comparisons in the table below use the same SolarQuotes list (12 November 2026), consistent with our price guide.
| Battery | Usable capacity | Hardware price after rebate | Price per kWh |
|---|---|---|---|
| Fox ESS CQ7 | 27.84 kWh | A$6,600 | A$237 |
| Sigenergy SigenStor | 27 kWh | A$7,200 | A$267 |
| Fox ESS EQ4800 | 27.96 kWh | A$8,100 | A$290 |
| Sungrow SBR | 25.6 kWh | A$14,000 | A$547 |
| Tesla Powerwall 3 (with Gateway) | 13.5 kWh | A$10,000 | A$741 |
For competitor prices see the Sigenergy battery price, Sungrow battery price, GoodWe battery price and Alpha ESS battery price guides.
Fox ESS warranty and Australian support
Fox ESS gives a 10-year battery warranty, but conditions matter. The Australian HV battery warranty (V2.7, March 2026) is issued by Foxess Co., Ltd with FoxESS Australia Pty Ltd as importer.
- Term: 10 years from installation, and no more than 125 months from manufacture.
- Capacity: at least 70% of nominal capacity at 10 years, or until a throughput limit is reached, whichever comes first (39.32 MWh for a two-module EQ4800 stack).
- Registration: the battery must be registered and online with the Fox ESS cloud from commissioning.
- Claims: only the installer or Fox ESS staff can lodge a claim. If your installer closes, you can appoint another installer, at your cost.
- Temperature: the performance warranty requires ambient temperature between -10 and 50 degrees Celsius.
Inverter warranty is reported differently by different sources. SolarQuotes says the H1-G2, H3 Smart, F, G and T series carry 10 years, with paid cover up to 20 years available, while Solar Choice has described hybrid inverters as five years standard. We could not reconcile the two from an Australian warranty document, so ask your installer for the current Fox ESS inverter warranty in writing, and confirm what registration it requires. Our solar company failures tracker explains why installer survival matters for a warranty that must be claimed through an installer.
Is Fox ESS a good brand?
Fox ESS is a well-rated value brand with a short Australian record. Owners rate it highly, while independent reviewers want more years of local data. SolarQuotes shows 4.7 from 341 battery ratings and 4.8 from 233 inverter ratings (November 2026).
Source: SolarQuotes Fox ESS battery reviews, checked November 2026.
View the data as a table
| Ratings | |
|---|---|
| 5 star | 293 |
| 4 star | 26 |
| 3 star | 8 |
| 2 star | 4 |
| 1 star | 10 |
About 86% of Fox ESS battery ratings on SolarQuotes are five stars (293 of 341, a Solar Cobber calculation) and about 3% are one star.
Reservations are real. SolarQuotes’ Finn Peacock has said he lacked enough information to judge the batteries in Australian conditions and was hesitant to recommend the inverters because of the brand’s short history here. Owners and installers describe slow support responses, and owners of large EQ4800 stacks have reported usable capacity below the label figure, as covered in our review. There is no cell heater, so cold-climate homes should install indoors.
We found no ACCC product recall for Fox ESS batteries or inverters in a search in November 2026. Check the Product Safety Australia recall list yourself before signing, because that search was not exhaustive.
The video above is an independent installation walkthrough of a 48 kWh Fox ESS CQ6 stack with a three-phase inverter from Australian energy educator Neerav Bhatt, useful for seeing how big stacks are mounted.
Fox ESS vs alternatives
Fox ESS wins on price and expandability, and loses on track record. The table compares Fox ESS with three rivals we have reviewed.
| Fox ESS EQ4800 | Sungrow SBR | Sigenergy SigenStor | GoodWe Lynx F G2 | |
|---|---|---|---|---|
| Capacity range | 9.32 to 41.93 kWh | 6.4 to 25.6 kWh | 5.2 to 46.8 kWh | 6.4 to 28.8 kWh |
| Hardware price per kWh (27 to 28 kWh class) | A$290 | A$547 | A$267 | Not listed here |
| Coupling | DC, Fox hybrid inverter only | DC, Sungrow hybrid only | DC, integrated inverter | DC, GoodWe hybrid or battery inverter |
| Warranty | 10 years, 70%, throughput capped | 10 years, 70%, unlimited self-use cycles | 10 years, 70%, about 3 MWh per kWh | 10 years, 70%, throughput capped |
| Our review | Fox ESS review | Sungrow SBR review | SigenStor review | Lynx review |
Our brand guides for Sigenergy, GoodWe, Sungrow and Alpha ESS cover the alternatives in depth, and best solar batteries in Australia ranks the market. A DC-coupled battery needs a matching inverter; read AC vs DC coupled batteries before you commit to a brand.
Fox ESS VPPs and tariff plans
Fox ESS lists Amber Electric and the Origin Loop VPP as partners (Smart Energy 2026 press release). Amber publishes a guide for enrolling Fox ESS systems, and our Amber Electric review covers that retailer. A virtual power plant (VPP) pays you for letting a retailer control your battery at set times; our VPP guide explains the trade-offs, including how VPP cycling uses up warranty throughput.
Where Fox ESS products are made
Fox ESS says its main production base is in Wenzhou, Zhejiang, with phase II starting operation in 2026 and a planned capacity of 1 million inverter units a year at the new site. Its profile also lists an EU headquarters in Germany (2022) and an Australian branch (2022). The company’s own milestones put 2023 production capacity at 530,000 inverters and 1.8 GWh of energy storage. These are company figures that we could not verify independently.
Who installs Fox ESS
Fox ESS is one of the most commonly quoted battery brands, especially on lower-priced offers, so most installers who sell batteries will offer it. Because claims go through the installer, the installer matters as much as the hardware. Browse our installer directory, check your state at /companies/regions/victoria or another region page, and read how to choose a solar installer and how to compare solar quotes. For a large stack, see 30, 40 and 50 kWh battery prices and what size battery you need.
FAQ
Is Fox ESS a good brand?
Fox ESS is a well-rated value brand with a short Australian record. SolarQuotes shows 4.7 out of 5 from 341 battery ratings and 4.8 from 233 inverter ratings as at November 2026, but its reviewer wants more years of local data before a firm recommendation.
Who owns Fox ESS?
SolarQuotes describes Fox ESS as a subsidiary of Tsingshan Holding Company, and the company is registered in China as Maitian Energy according to pv magazine. It is applying for a Shenzhen ChiNext listing, with approval pending as at October 2026.
Where is Fox ESS made?
Fox ESS says its main production base is in Wenzhou, Zhejiang, China. It is a Chinese company with Australian offices in Springvale, Victoria and St Leonards, New South Wales.
How much does a Fox ESS battery cost?
SolarQuotes lists Fox ESS EQ4800 hardware from about A$4,000 for 13.98 kWh to A$13,000 for 41.94 kWh after the federal discount, excluding installation, as at 12 November 2026. Installed prices vary widely, so see our price guide.
How long is the Fox ESS warranty?
Fox ESS batteries have a 10-year warranty in Australia, ending at 70% capacity or a throughput limit. The battery must be registered online, and claims go through an installer.
Can I use a Fox ESS battery with another inverter brand?
No. The EQ4800 works only with Fox ESS hybrid inverters (H1-G2, KH, H3 Smart and H3 Pro), so an existing non-Fox inverter is normally replaced.
Has Fox ESS had a product recall in Australia?
We found no Australian recall for Fox ESS batteries or inverters in a November 2026 search. Check the Product Safety Australia recall list before you buy.
Is Fox ESS better than Sungrow or Sigenergy?
Fox ESS is cheaper per kWh than Sungrow and close to Sigenergy, but Sungrow has a longer Australian track record. See our Sungrow and Sigenergy brand guides.
Sources
- SolarQuotes: Fox ESS battery review and owner ratings (checked November 2026)
- SolarQuotes: Fox ESS inverter review (checked November 2026)
- SolarQuotes: battery prices and system costs (12 November 2026)
- Fox ESS: company profile (checked November 2026)
- pv magazine Australia: Fox ESS at Smart Energy 2026 (press release)
- pv magazine Australia: Fox ESS modular C&I battery system, 5 October 2026
- Fox ESS EQ4800 datasheet, Australia, V1.3, August 2026
- Fox ESS HV Battery Warranty Policy, Australia and New Zealand, V2.7, March 2026
- Clean Energy Council approved batteries list
- Product Safety Australia recalls
About this guide
This guide was written by the Solar Cobber editorial team from independent desk research checked in November 2026. Solar Cobber is a free directory that may earn referral or advertising fees from installers, but commercial relationships never affect our content. This is general information, not financial advice. To report a correction, contact us.
Filed under Solar Products
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