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Fox ESS batteries review.

Known for EQ and CQ stackable batteries.

7.7Very goodEnergyUpgrade Score out of 10

#5 of 9 home battery brands

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Also rated: Fox ESS inverters (6.8)

Founded
2019
Headquarters
Wenzhou, China
Stock exchange
Not listed
Selling in Australia since
2021
Series on the approved list
6

Our verdict

Is a Fox ESS battery right for you?

Some of the best battery specs and warranties on the list, at a good price, from Australia's fastest-growing storage brand. The trade-off is a short track record.

Rated 7.7/10, #5 of 9 brands we rate for batteries.

A good fit if

  • You want a long warranty and room to expand
  • Value matters

Maybe look elsewhere if

  • You want a battery brand with many years of Australian claims history

What we like

  • Long warranties

    CQ6 has a 12-year performance warranty; EQ and CQ cover the full 10 years for typical use.

  • Room to grow

    EQ and CQ stack well past 40 kWh.

  • Fast-growing

    No. 1 fastest-growing storage brand in Australia, 2025 (SunWiz).

Worth weighing up

  • Short history

    Batteries sold here only since 2022.

What owners say.

4.7out of 5

From 309 owner reviews of Fox ESS batteries on independent review sites.

Ratings as published on 8 October 2026. Some review sites invite or reward reviews, so we weight ratings by how many reviews sit behind them and pull small samples towards an average. We don't collect or edit these reviews.

How we rate Fox ESS batteries.

7.7

The same five parts for every brand. No brand can pay to change any of it. The full method

  • Product scores · 45%

    9.8

    Best two series: CQ 9.8, EQ 9.8

  • Owner reviews · 15%

    8.2

    4.7 stars from 309 owner reviews on SolarQuotes

  • Track record · 15%

    4.4

    5 years selling in Australia, not listed

  • Installer and market standing · 15%

    3.0

    Not in the top five of the installer vote; No. 1 fastest-growing storage maker in Australia, 2025 (SunWiz)

  • Australian support · 10%

    10.0

    Australian office, local phone, service email

Every Fox ESS battery series.

Tap a series for why it scores what it does, its full specs, every version and the datasheet.

Questions to ask your installer

  1. 1How much of my evening use will this cover?
  2. 2Does it include backup in a blackout, and for which circuits?
  3. 3Can I see the warranty document, including the throughput limit?

A good installer will be glad you asked, whichever brand you choose.

Australian support

Offices
53 Willow Avenue, Springvale VIC 3171
Unit 3, 39 Herbert Street, St Leonards NSW 2065
Phone
1300 377 369
Email
service.au@fox-ess.com
Hours
Mon–Fri 9am–5pm, Sat–Sun 10am–4pm

Your installer is the first contact for a warranty claim. Use these if your installer has closed.

Recalls and known issues

No recalls on the ACCC Product Safety register for Fox ESS batteries, checked 6 October 2026.

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