Fox ESS battery in Melbourne: the value-tier price, and what you get
Fox ESS is one of the two value-tier batteries on this site, which makes it the benchmark a Melbourne quote for any other brand should be compared with. Here is what it costs, what the range and warranty look like, and what Melbourne's network rules mean for it.
Price in Melbourne
| Brand | Battery | Installed, before rebates | After rebates (VIC) |
|---|---|---|---|
| Fox ESS | 10 kWh | $7,650 to $13,500 | $5,130 to $10,980 |
| Fox ESS | 15 kWh | $12,100 to $18,000 | $8,420 to $14,320 |
| Fox ESS | 27 kWh | $16,470 to $28,000 | $10,980 to $22,510 |
Installed prices from the same calculator the free assessment uses, at Fox ESS's value tier. The federal discount is the same for any battery of the same usable capacity[1], and Victoria has no state battery rebate open now[2].
The range
Fox ESS has several series on the approved list. The EQ4800 runs from 9.32 to 41.93kWh usable, the CQ6 and CQ7 reach 83.86 and 97.44kWh, and there are newer EQ5500 and Power Cube series[3]. For a Melbourne house, the EQ4800's 10 to 15kWh steps are the usual fit, with room to add modules later.
The warranty
Fox ESS's EQ4800 carries a 10-year warranty based on energy throughput, which Fox ESS has described as working out to about 4,100 full cycles at 100% depth of discharge[4]. Read the current warranty document for the exact model on your quote, because terms are set per series.
The same hardware, sold another way
The 1KOMMA5° Battery is made by Fox ESS: its warranty is issued by Fox ESS Australia, which describes it as manufactured by Fox ESS and distributed by 1KOMMA5° under its own brand[5]. If you have a 1KOMMA5° quote, a like-for-like Fox ESS quote of the same usable capacity is the fair comparison.
Melbourne's export rules and a battery
In Melbourne the distributor, not the retailer, sets how much a house may export, and it does so at pre-approval, before anything is installed. The rules are changing. United Energy's, CitiPower's and Powercor's connection policies for 2026 to 2031 lower the maximum static export limit to 1.5kW per phase and offer flexible exports of up to 10kW per phase instead[6][7][8]. AusNet assesses most household systems online for up to 5kW of export per phase[9]. Jemena's policy allows it to impose a zero export limit on a new or altered connection where the customer asks, or where exports would be likely to breach technical limits and fixing that would cost more than it is worth, but not where the customer uses a dynamic system it has specified[10].
The tighter the export limit, the more of a sunny afternoon's surplus is worth storing rather than sending out, and there is no minimum feed-in tariff in Victoria to fall back on[11]. That is the Melbourne case for a battery in one line. Your distributor's name is on your bill; ask the installer what limit the pre-approval came back with.
Questions for a Melbourne quote
Which Fox ESS series and usable capacity, in writing. Whether the price includes a Fox ESS hybrid inverter, and what happens to your existing one. What export limit your network approved at pre-approval. And whether the price is before or after the federal discount.
Get your own numbers, then get them priced properly
Two minutes of questions gets you the battery size your house actually needs, what it should cost after rebates, and what it saves. Then I find the bottom of that price range for you. No installer sees anything unless you ask.
Run my numbers, freeCommon questions
How much does a Fox ESS battery cost in Melbourne?
On this site's calculator, $7,650 to $13,500 installed for 10kWh before the federal discount, which takes $2,520 off. Victoria has no state battery rebate open.
How long is the Fox ESS battery warranty?
Fox ESS's EQ4800 carries a 10-year warranty based on energy throughput, described by Fox ESS as about 4,100 full cycles at 100% depth of discharge. Terms are set per series.
Is the 1KOMMA5° battery a Fox ESS battery?
Yes. Its warranty is issued by Fox ESS Australia and describes it as manufactured by Fox ESS and distributed by 1KOMMA5° under its own brand.
Sources
- Clean Energy Regulator, Solar batteries (Cheaper Home Batteries Program). Read 2026-10-27.
- Solar Victoria, Solar battery loans (no longer taking applications; page updated 16 April 2026). Read 2026-10-27.
- Clean Energy Regulator, CEC approved solar batteries (list). Read 2026-10-27.
- pv magazine Australia, 20 November 2025, Fox ESS compact batteries heed rebate call backed by new local teams. Read 2026-10-27.
- Fox ESS Australia, via 1KOMMA5° Support, Limited Product Guarantee from Fox ESS Australia Pty Ltd for the 1KOMMA5° Battery (status 28 May 2025). Read 2026-10-27.
- Australian Energy Regulator, final decision April 2026, United Energy Connection Policy 2026-31 (Attachment 16, Appendix A). Read 2026-10-27.
- Australian Energy Regulator, final decision April 2026, CitiPower Connection Policy 2026-31 (Attachment 16, Appendix A). Read 2026-10-27.
- Australian Energy Regulator, final decision April 2026, Powercor Connection Policy 2026-31 (Attachment 16, Appendix A). Read 2026-10-27.
- Australian Energy Regulator, final decision April 2026, AusNet Distribution Connection Policy, effective 1 July 2026 (Attachment 16, Appendix A). Read 2026-10-27.
- Australian Energy Regulator, final decision April 2026, Jemena Connection Policy 2026-31, section 8: static zero export limit (Attachment 16, Appendix A). Read 2026-10-27.
- Essential Services Commission, Minimum feed-in tariff. Read 2026-10-27.