• long running

[NSW, SA, QLD] 41.93 Kwh FOX ESS Eq4800 Solar Battery $5,299 after Rebates + VPP Perks @ Aussie Solar Batteries

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UPDATED: Now compatible with Amber Electric

Score a FOX ESS EQ4800 solar battery from just $5,299 after rebates.

Pay from $5,299, dramatically reduced through government incentives (up to $16,000 for a 42 kWh system).

Available Systems & Pricing:

  • Basic| Price: $5,299 | Specs: Single-phase 5 kW inverter, 2 MPPTs + 41.93 kWh battery

  • Standard | Price: $5,499 | Specs: Single-phase 8 kW inverter, 3 MPPTs + 41.93 kWh battery

  • Plus | Price: $5,999 | Specs: Single-phase 10 kW inverter, 4 MPPTs + 41.93 kWh battery

  • Ultra | Price: $6,999 | Specs: Three-phase 10 kW inverter, 3 MPPTs + 41.93 kWh battery

  • Ultra Plus | Price: $7,499 | Specs: Three-phase 15 kW inverter, 3 MPPTs + 41.93 kWh battery

Why this deal rocks right now:

  • Battery prices are dropping: Home batteries are now being added to 1 in 5 solar installs (vs 1 in 20 just a few years ago).

  • Federal rebates are live: From July 2025, the Cheaper Home Batteries Program offers a 30% rebate, taking many systems from over $10K down to ~$6K — and this deal already lands at $5,500.

  • Real household impact: Solar + battery setups are helping families slash power bills, sometimes even earning credits.

  • Typical savings: with ~20 kWh daily use and $0.40/kWh electricity cost, you’ll save about $8 per day and usually recoup your investment in under 2 years.

Related Stores

Aussie Solar Batteries
Aussie Solar Batteries

Comments

    • any comment on that OP?

      • -1

        Aussie Solar Batteries is the battery subsidiary of Solar Systems Australia. We've been in business since 2017 and have installed our systems for over 15,000 customers. I hope this helps clarify.

        • +2

          Been in business for ~3000 days and installed over 15,000 solar systems?

          That’s bloody efficient.

          • @stratbargain: One solar system equals 1 panel?

          • @stratbargain: I signed up for a solar system with a company that just takes orders, probably drop ships components (not sure how their logistics works), and arranges local installers.

            I discovered their business model when they couldn't find an installer in my town.

            But in a city they were probably operating at least this efficiently…. which makes me wonder about this company's business model.

        • Any comment on that OP so you’re saying that you installed close to an average of five systems a day since 2017?

  • Be great if op could update with a few details of extras to save multiple similar questions…

    What's the size and footprint of the stacked batteries.

    How much to have blackout protection with two circuits? (to compare to voltx deal)

    Cost for common additional extras like firewall and bollards for garages etc.

    Cost for Dynamic Control Unit for certain energy providers if going above 10kw size (solar and battery)?

    Would be appreciated

  • I have enquired with Aussie Solar Batteries. I am on the Ergon power network which is 80% of Queensland and they are the only ones that refuse to install a battery system because i an connected with Ergon. The travel fees also add up quickly too.

  • https://www.solarchoice.net.au/products/batteries/fox-ess-re…

    Revew of the batteries isn't great.

    If it seems to good to be true…

    For reference I got a quote for a sigenergy system, and 32kwh of batteries was more than double what is being advertised here for 42kwh

    • +5

      To take into consideration:

      1. Fox ESS now has an australian office (they didn't at time of review)
      2. They had a warranty condition that at year 6 it had to be serviced annually by a registered agent (they have now removed this condition)

      These factors would hace affected the solarchoice score heavily, I am highly considering this system myself but in Vic. if anyone gets any competitive Vic quotes let me know!

      • If you look at the Fox ESS reviews on their inverter, you'll find that they are full of problems. It seems like they need to replace your inverter (likely a reliable brand) with their inverter (not so reliable) which is not ideal. This seems to be the cheapest brand on the market, you get what you pay for. The battery review was created on the 15th of July 2025, it's not an old review so it's good that those two things were updated but that won't change the review much.

        • +5

          Second time you've commented you get what you pay for but get to provide any evidence or specs that aren’t good.

          If you don’t want to DC couple you can AC couple and keep your existing inverter. It sounds like you don’t exactly know what you’re talking about yet you’re telling us it’s bad.

          It may be a shit product, so tell us why it is and we can agree or disagree. There’s nothing in the same price range with 4 MPPT that allows up to 11 440w panels per string that allow 10kw charge/discharge

          At a glance my Goodwe system has just as bad reviews online as Fox ess and it’s performed fine for me with no issues

          • +1

            @Brick50: The bottom line here from my recent research is you are spot on, but beyond that it's just a relatively new to Australia company and they have recently updated their support, warranty terms and even product line so there's just not much information, however with a 10 year warranty and a company committed to expansion here I am willing to take the punt and save what for me would be 10k, doubling the payback period and making my setup much harder to justify

            • +2

              @Jackson: Yep, totally get that premium products are better but then ROI is double or triple.

              People would have been saying this 10 years ago, you get what you pay for etc. paying a premium price for 200 watt solar panels with a 3kw system.

              Anyone who got the cheaper system would be well ahead because a 3kw system does bugger all these days.

              The other one is “you only get the rebate once” well haven’t there been 3? Different solar rebates?

              My parents got panels 15 years ago and were on PFIT until recently and they’re eligible for another solar rebate, possibly they could have had 2 more systems installed under rebates since they first had solar done.

          • @Brick50: A Goodwe inverter is one of the best cost efficient inverters you can buy, it's got 2935 ratings on Solar Quotes and it averages 4.8/5. I don't have any Fox ESS products so my comments are purely based off reviews and comments from owners who have installed the system. The Fox ESS inverter is only rated 3.55/5 by 22 people on Solar Choice. However, you are correct, you don't have to replace your inverter as they can AC couple so that does help with peace of mind. Just note that the installation warranty is only 5 years as opposed to 10 years by VoltX which is very similarly price but with far better reviews ($5.9k for a 30kWh system installed).

          • +2

            @Brick50: Fox-ess is by far the largest battery installer in UK…very good reputaion over there. So take solarchoice review with a grain of salt.

            Acording to the datasheet ( https://au.fox-ess.com/wp-content/uploads/2025/08/EN-KH-KA-D… ) the K series inveters supports upto 20kwh of solar, ~5kw per string.

  • Fresh solar panel install with this battery, can be DC coupled?

  • Roughly 2 years to recover the install cost. Assume more cost in services, so 3 years is still a good number

    • +1

      How did you calculate that one? Mine is around 6 years for ROI and thats as long as the ovo free 3 hours sticks around to charge the battery up/keep charging EV for free

      • Actually your ROI will decrease (in time) if OVO cease that plan if you think about it. But you will likely be cycling your battery more.

        • Yes maybe but then I will need to charge it on an overnight tariff during winter and pay instead. In winter ill use like 25-50kwhkwh and only generate 5

          • @Brick50: Yeah a bummer. But since your base cost of power will go up, your ROI will be shorter! :)

      • It all depends on how much you pay for electricity and how much you use from the grid. If you have a mortgage interest rate of 5.5% and you self consume 3100kWh of electricity at 38c/kWh then it'll save you $1178/year - $270 of mortgage interest in the first year so the payback period will be 5.5 years for the $5,500 package. If you use up the full capacity of 38kWh every day then you'll almost pay the battery off in the first year!

        • +1

          Last 30 days I’ve consumed

          From solar:
          690kWh

          From the grid:
          465 kWh for free during 12am to 2pm
          503kWh at 28.6c per kwh $144

          Total: 1650 kwh in the month

          If I average it down to $100 a month of actual usage (since usage will be far far less in autum, spring and even summer due to 5-10x more solar)

          Then savings are $1200 a year and price is $7500 for 10kw/42kWh

          As you can see I absolutely smash the free 3 hour period, most people wouldn’t be able to do that and house battery probably makes far more sense for them instead of me but I like tech!

          • @Brick50: I need to learn from you! What are you running that is so energy intensive over 2 hours or do you actually mean 12am-2pm=14hours?
            Do you use home assistant?
            55kw per day sounds like very heavy usage. EV, pool, bitcoin mining? I’d like some tips

            • +1

              @cowiie: Yeah I use home assistant, yesterday was 53.5kwh usage and no ev charge but half that came from solar and only about 15kwh was charged at 28c

              Heat pump HWS starts at 9 or 10am depending on how low the temp gets, then at 11am it gets put to electric element mode (so it’s silent, heats quicker in winter) then at 2pm it’s pretty much always done anyway and I feel like it might make the HWS last longer since I’m not running compressor as much?
              I think it’s quite noisy is the reason why I do this mostly

              If I’m not home I set my 5/6 split systems (8kw,3.5kw, 3.5kw, 3.5kw, 2.6kw) to heat to like 25-30c and in a way the house itself acts a bit like a heat battery

              Easy one but I just set the timer on my dishwasher at night to run at 11am, my partner would have done some washing as well

              Currently I’m having a little bit of water in my downstairs basement storage area, so I have a electric resistive heater fan in there to try it out using a smart plug to run it 11am to 2pm which uses about 5kwh daily

              Then I charge the EV a couple of days a week as well in that period, I have an automation setup to control the rate of charge as I only have 63A single phase so all of these things gets me over 14kw if there’s no solar. I basically look at how far over 63a I’m drawing and drop the EV charger that many amps then when the load drops the ev charge ramps back up.

              In the dead of winter I can basically draw 14kwh for 3 hours from the grid to the point where I am worried there will be enough capacity to charge the battery as well with everything else

              • +1

                @Brick50: Very nice! I too have 63A single phase with EV on the way. Trying to figure out how best to charge EV and store energy with this battery deal amongst other things. I have home assistant as well so able to time things and automate things.

                I live in QLD so don’t need that much heating nor do I have a pool (yet). I must have missed out on the free power between 11am and 2pm bandwagon. I remember a few companies offering that but now they seemed to have stopped it in QLD…

      • Stay at home family with a newborn and parents, so very high usage. I already have big solar arrays. I expect to store and consume 20 kWh daily, which is $2500 a year in savings.

  • For people already with solar, does this mean the existing inverter will be replaced by the fox inverter? Do any of the setups work with houses with 2 phases where the battery can be used to supply power to both phases?

    • Yes I believe the KH10 can be both AC or DC coupled so depending on how you would like it setup it will most likely replace your existing inverter, I am unsure how 2 phases work sorry

    • I thought houses in Australia were single or three phase?

      • Some older houses likely to exceed the maximum design current of a single standard sized conductor might have added a second conductor. My place is one of them. We don’t get the benefits of three phase, just an extra incoming feed for more juice spread across the load circuits.

        Will likely upgrade to three phase one day…

    • Your existing solar inverter will stay as-is with this installation package. A new battery inverter will be installed alongside the existing one and can monitor the imports and exports of one, two or three phases (depending on your connection type). It will absorb excess solar that is not consumed by household loads up until the batteries are fully charged. It will also supply household loads when insufficient/no solar is being produced until the battery runs out.

      This all happens automatically.

  • How it works? Are we allowed to charge it with the off peak hours rate for use at peak hours in case on no sun days?

    • +1

      Yes you can force charge, force discharge etc.

      10 kw inverter will allow it to provide up to 10kw of house loads or allow you to charge from grid at 10kw provided your consumer mains/main switch can handle it

        • another 10kw of solar in parallel, so battery can charge at 20kw under such conditions (albeit uncommon)
          With hybrid inverters the kw relates to the AC/DC conversion, always check the specs for the DC side (usually double)
        • I don’t think you’re right… can you show me where this is the cases?
          I don’t understand what you mean by solar in parallel? I assume you mean DC coupled so pv strings hooked directly to inverter?

          Battery is limited to 50a charge/discharge which is 10kw

          • @Brick50: Both can be true, but 100% you are correct for this deal you are indeed also limited by the battery, which I would argue nominal is closer to 7kw, far from the 20kw I claimed. So thank-you for correcting me that is an important detail.

            Although it should peak at around 15kw to handle spikes.
            I did note to always check the specs..:) and correct in stating the kw rating is for the AC/DC conversion.

          • @Brick50: Hi Brick, thinking about it the L9 in this deal should easily handle charge at 20kwh. Remember to use the battery voltage (365.4 ~ 463.7v) when calculating the battery output. Obviously use 240v when calculating the inverter limits.

            Anyone actually have this setup and can confirm?

            To preserve battery life, they recommend limiting to 30A, which is between (11kw - 13kw) depending on the battery state of charge.
            Although will support short bursts at 65A.

            • @UltimateAI: Which inverter are you looking at? The KH10 can only do 10kw

              • @Brick50: H3-10.0-Smart, the way I read the specs can handle 10kw AC input and 18 DC input.
                So ideally I would like to charge at 10kw (10kw and 5kw from solar), just during the 2hour free window.
                Realistically though I think I will limit charging,

                • @UltimateAI: Ah ok, I am looking at the single phase which is bottlenecked at 10kw

                  • @Brick50: Chatgpt copy and paste, not sure what you think of this

                    “Exactly 👍 — with the H3-10.0-Smart (or the KH10 you asked about earlier), the inverter enforces a single 10 kW ceiling on battery charge power.

                    What happens in practice
                    • If you’ve got 10 kW PV available and you tell the inverter to also draw from the grid, it won’t slam 20 kW into the EQ4800-L9.
                    • The control logic looks at the battery charge setpoint and then caps at 10 kW total, regardless of whether the energy is coming from PV or AC.
                    • It can mix the two sources (e.g. 6 kW PV + 4 kW grid), but the combined flow into the battery won’t exceed ~10 kW.

                    Why
                    • Internally, there’s one DC bus and DC-DC stage regulating battery current.
                    • The “battery charge/discharge power” spec (10 kW for the 10 kW model) applies to the whole inverter, not per-source.
                    • Bigger siblings (H3-12 / H3-15) raise that ceiling to ~12–15 kW, but still treat it as a single limit.

                    • @Brick50: I will budget based on 10kw and let you know how it pans out,

                      Battery charge\discharge is set in A not kw so ChatGPT made that up…:)
                      With the high voltage of the L9 stack 50A should support 10kw AC + 18kw DC into the battery, but clearly only 10kw out.
                      There could be other software limitations, so I'll let you know if I can hit 16kw.

                      Assuming I proceed….

  • In QLD, if already have current 6kw system, does $5500 buy me another srt of system and will thry both run concurrently?

    • It might be able to be AC coupled meaning you leave your original inverter and this gets installed seperately or you can get it DC coupled so it replaces your old inverter, makes it a bit more efficient and means all of the conversion is done in house and so you can see exactly whats going on

      Rather then seeing PV output in your old solar app, battery charge/discharge in your battery app etc.

      • Thanks, but if installing separately wouldn't it mean power energy can be generated?

        • I don't understand your question

          • @Brick50: Sorry, I meant to ask 'wouldn't it mean more power energy can be generated?'

            If 2 systems can be run concurrently, as in AC coupled, there's more energy can be produced, is that correct?

            • @wildstone: Produced from where? Are you talking about more solar panels ?

              AC coupled means your panels are making DC, which gets conveyed to AC at a loss, which then has to be converted to DC again to charge your battery at another efficiency loss

              You’ll have the same amount of panels, same energy being produced but slightly less will make it into the battery due to all the conversion

              And like a DC coupled battery im guessing the battery will only charge when PV is exceeding the house load unless you manually force grid charging.
              Rather than knowing the panel outputs from each string like the DC coupled battery would know, the AC could battery only knows your importing/exporting from a CT around your grid mains cable

  • +1

    Will the batteries power the house during a blackout?

    • if it's DC coupled and you pay for blackout protection for a couple of circuits

      • You get blackout protection if it's AC coupled as well. They said that 2 circuits will be included in your quote, every extra circuit is $300. Others have mentioned that DC coupling is an additional $500. The main benefit is a minor improvement on efficiency & the ability to charge during a blackout which is hand if you live somewhere with rolling blackouts that last for multiple days. The downside is that it's more expensive, the inverter works twice as hard and both your solar & batteries fail together if the inverter dies.

        • +1

          Also any solar that goes over your current inverters rating is currently getting clipped (eg I have 10.56kw panels and 8.5kw inverter, so DC coupling would allow the 10.56kw to DC charge the battery whereas currently its limited at 8.5kw)

          As you said you have more points of failure with an AC system as you'll have 2 inverters and possible your existing installer won't warrant the setup if you touched their side of it at all. If you DC couple the installers I asked will take over panel warranty

          Also you would need a energy monitor like a Shelly if you want to have access to all stats in one place, (pv output, battery soh, power flow direction, etc.)

  • I've got a family of 6, currently using 22.6 Kwh per day. Bill's about 850-950$ in Adelaide.

    Anyone know which of these setups I'd need to have 'free' power (excluding the solar set up costs).
    Thankyou

    • +3

      Depends on whether you are single or three phase, but usually go for the bigger inverter your phase can allow you. Then go with a free plan like OVO (or AGL seeing as you are in Adelaide) and you get a guarantee 3 hr charging at max inverter speed even if it's a rainy day. That should last your whole day (all other time outside free window) relying on battery.

      I have a Sigen 10kW single phase inverter + 32kWh battery setup since July and full day load average 60kWh/day. Solar production was barely 5kWh on rainy day without a single shred of sun, and I charge my EV at night so I use OVO EV plan with free 3. Zero grid usage outside of free window and EV window ($0.08/kWh). Last month bill came out at $100 for 1.6MWh usage in total, inclusive of daily supply charge.

      • we are single phase (older home in Semaphore).
        Does the 'three phase' these guys are talking about in their package mean it includes installation of three phase or that you need three phase to take that package? Thankyou for your help!

        • +2

          You need three phase separately, nobody offer this with solar for so little money. Upgrade to 3P starts around $5k and can be a lot more depend on what is needed. Some got quoted around $20k due to street upgrade required.

    • +2

      That is huge.

      Plus or Ultra pack with at least a 10 kW Solar array and you will never pay again, or very little.

    • -3

      Bill's about 850-950$ in Adelaide.

      You mean $850-950.

      Stay in school kids.

      • You mean $850-950.
        Stay in school kids

        You mean the price is $850–950.

        • -1

          You mean the price is $850–950.

          Nope I didn't mean that at all.

  • How about 23kWh battery in brisbane ? And, plenty of space for installation right next to single phase meter

  • I work for a builder and building with said builder. Slab going down in a few weeks? Can we organise something or will I miss the boat :(

    There will be three phase. Looking at a 13.3kw three phase system

    Gold Coast.

  • 10 kw inverter makes it more appealing than the voltx deal?

    • That plus your garage won't look like a US war ship with all the ugly grey batteries that don't stack

    • -2

      It's definitely more appealing that the VoltX deal especially since their installation dates are getting pushed further and further back. The problem is that the reviews on both the Fox ESS battery as well as the Fox ESS inverter are not good. How can we trust this company when the reviews are so bad, their prices are rock bottom and their warranty conditions are the lowest quality?

      • Can you show me the bad reviews and explain the bad warranty conditions?

        • -1

          There's not much info on here as it's so new but this is what I found on Solar Choice. I am quite tempted to ask for my deposit back from the VoltX team given how their installations keep getting pushed back but Solar Quotes stated that if you can't afford a good battery, you shouldn't buy one as you don't want the house to burn down lol https://www.solarchoice.net.au/products/batteries/fox-ess-re…

          • @supersabroso: That's mostly full of old information. FoxESS do have an Australian office, their batteries can be AC coupled, and they no longer require an annual inspection after 6 years to maintain warranty support.

            Plus FoxESS hold 50% of the UK battery market, they aren't actually a small company anymore.

      • legit feel most of the bad reviews are from competitors.
        Follow the Fox FB group, lots of happy customers. Popular brand in UK, new to this market, but adoption is huge.

  • @Aussiesolarbatteries
    I have a quote from another company for FOXESS battery system. I have sent you a PM with details of the quote.

    • Can you please pm the quote too?

    • We are happy to answer all your questions. Please reach us via the link in this post.

  • Canberra?

  • This doesnt include installation I assume. Roughly how much does it cost to install?

    • Hi bud, installation is included. Additional charges do apply if you require custom setups. Please follow the link on this post to find out more.

  • Does it support solar curtailment when installed foxes hybrid 3 phase inverter AC coupled with existing 3 phase solar inverter and panels? Got a quote of 7000 in Vic, wondering if I can make use of it for Amber smart shift to make money to pay off battery in 2 years.

  • @Aussiesolarbatteries

    What generation inverter are you installing ?

    How much extra to get it installed in SA (with SAPNs 5kw export max rule), or can you go above 5kw with DRM?

    • Most areas in SA have Flexible Exports available now, which gives up to 10kW export.

      • What's the trade off again though? You needed to agree to something (was it curtailment / complete inverter shutdown via DRM)?

        • They can vary your export limit, so when there's too much power in the grid they can bring the export rate down to as low as 1.5kW. The thing is though that this would only ever get done during the middle times of the day, and during these times the solar FIT is so low anyway.

          • @noz: Cheers Makes sense for grid stability I guess.
            Be good to see some real world data on how this played out over the last 12months.

            • @tunzafun001: If you put your address in the eligibility checker, it will tell you if your premises is eligible and the percentage of time you will get the full 10kW during daylight hours (at night you will always get the full rate).
              https://www.sapowernetworks.com.au/your-power/smarter-energy…

              • @noz: Brilliant. Thanks for this. Comes up as 98% at 10kw. Definitely worth paying extra for the 10kw inverter.
                Whats your thoughts on the ESS?
                Almost bought a 10kw ESS Smile 5 in 2018 from Shine Hub for $2990 installed.
                Went with a 13kwh Growatt unit instead (same price). Growatt has been perfect. No issues whatsoever…but I need to decomission it to put in another battery

                • @tunzafun001: ESS is bit of a general term, but you then mentioned Smile .. that's Alpha, right? I think it's fine if you go with a trusted installer that has been around for a while and has good experience with them. Other than that, I am not too sure. I have a Sig system and pretty happy with it. However I do not sh!t on the cheaper brands like some people do. I haven't seen any material evidence that there is anything wrong with them. I personally think the installer and post-sales service is more important.

                  • @noz: Cheers. Id agree with that. Also some common sense.
                    For example. The Growatt has no cooling fans. Mount that on a sun facing wall and it will be dead very quickly.
                    Mounted mine under eves facing SE. Still got to 85C in summer (monitoring is excellent for this info). Added PC fans powered by a $10 solar panel from eBay. Now peaks at 65C.

                    The difference between a "no watt junk died in 5yrs" vs " this thing will go forever". I also called support before getting it instant. They answer straight away. Have been excellent. Even airdropped a custom firmware for me for differing charge rates between the seasons.

                    Unfortunately, the new units are getting $$

  • Anyone have experience with this brand? Any thought?

  • What is the battery brand?

    • FOX ESS EQ4800

  • Isn’t VPP legibility is only if your usable battery is less than 28.8 kw?

    • Please contact us via the link in this post. We will answer all your questions via email, phone or whatsapp.

  • +1

    $1200 extra for 3p inverter. I'll wait till it drops to <$1k

    • -1

      Why does it cost so much more??

      • +1

        Why does a 8 cylinder engine cost so much more than a 4 cylinder???????

  • I sent my info a few days ago. How long until they call me back?

    • Hi mate, we have a large volume of enquiries to handle. Some of our team are working weekends to get through it.

      However we will try to get back to all inquiries within 2-3 working days.

  • Can anyone help an ignoramus like me here. My home is older single phase. Do the 3 phase deals in this post mean they will install a three phase inverter or do you need an existing 3 phase to use that package?
    Thankyou

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