• 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

    • +2

      You need to have 3 phase power supply to choose a 3 phase inverter option.

  • @Aussiesolarbatteries Are you able to install for Queenslanders on the Ergon network?

    • Hi mate, please get in touch with us via the link, our specialists will be able to answer all your questions.

  • @Aussiesolarbatteries and anyone else who knows the answer:

    I have been talking to multiple solar battery installation companies and almost all of them are saying that nearly 35-40% of the $2.3 Billion rebate has already been claimed. If it continues at this speed then what are the chances that the rebate will still be there after 2 more months.

    Or is it just a marketing gimmick?

    • This is my primary concern as well, in a way I think it’s just sales tactic but I know it is certainly running out quicker than they anticipated, whether that means it last 2 years instead of 4 years who knows.

      My concern would be that because how quickly it’s being adopted they will revise the rules or lower the rebate. If I knew the rebate would not change and it will last 2-3 years then I bet prices will be lower in 12 months compared to now even though the rebate will become less as each calendar year the amount of STC rebate you get is less

      If I wait until next year I’ll also be heavily looking at Alpha ESS options as well, slightly more credible company and been in market a lot longer whilst still being in same price bracket as fox ess but they currently don’t have a 10kw inverter

    • That's wrong, so far there has been ~ 1GWh installed in the last 3 months (including June which does not have rebates). Even if you include June, that's only $375m so far nowhere near 35% of the $2.3B. Federal also committed an extra $1B.

      There are strict commissioning limits, one installer can only commissioned 2 battery only system in one day. If it's a battery + solar it's counted as 2 system and one installer can only commission once per day.

      • Thanks @Bigboomboom, is there a way to check how much of the rebate has been claimed so far? I believe the installers have access some sort of online portal but don't if we as consumers can do it?

        If we had access to it, then we can confidently call out their bluff.

        • Solarquotes generally update the installed figure. Rebates in the first year is ~$375/kWh.

  • My house is 3phase, can I use single phase 10kw inverter? What is the difference between single & three phase 10kw inverter? Thanks for explaining in advanced.

    • +1

      Depends, most distributors does not allow more than 5kW phase imbalance so 10kW SP on 3P can be a no. This is why ESY for example use 5kW inverter (6kW inverter derated) for 3P. They haven't got the 3P version approved yet.

      • thanks for your answer.

    • Hi mate, please get in touch with us via the link, our specialists will be able to answer all your questions.

  • OP what panels do you use for your combo solar and battery deals?

    • Hi Jackson, can you please use the link to get in touch with us via phone or email. We have specialists to answer all your questions, have a good night.

  • -2

    Check this review.
    I was thinking of buying but…
    https://www.solarchoice.net.au/products/batteries/fox-ess-re…

    • +4

      see my earlier comment discussing this review, most of the "bad" has been resolved since this review

      The 4 bad points raised:
      1. Not a long presence in market (yes thats true and fair enough)
      2. No local support (there is a local office with local support)
      3. Warranty required annual servicing to be valid (they removed this condition in V2.5 of the warranty guidelines)
      4. Batteries only work with their inverter (basically a non issue, doubt anyone would be using different brands)

      So 2/4 of the negative points they raised are no longer relevant

      • Does the battery have its own inverter like Neovolt ESS? If so you can keep your existing solar inverter

        • This can be AC or DC coupled so you can keep your existing inverter if you want but you will lose efficiency and will have to use both apps to see what is going on if you AC couple.

          If you DC couple your old inverter will be removed
          The inverter in this deal is not an all in one/stacklable inverter it would be wall mounted next to or above the battery stack

        • Yes it does, and can be AC coupled to existing inverters. A small difference with FoxESS is that the inverter is separate and not integrated with the battery stack like most others.

          A big advantage with this approach is they have a wide range of both single and 3 phase inverters with power ratings from 5-15kW, whereas brands like Neovolt and ESY are much more limited in options.

          • @Dogsrule: ESY and Alpha ESS are both introducing a 10kw single phase inverter soon, debating whether it's worth waiting for that.
            I feel like even when STC's drop next year battery prices will drop further so im not sure what to do

            • @Brick50: Yeah I did see that and they'll be good for single phase homes. 3 phase not so much because of the 5kW phase imbalance limit in AS4777.

              I feel like even when STC's drop next year battery prices will drop further so im not sure what to do.

              I considered the same thing, but prices are sufficiently low now that the ROI is very favourable as-is given my high energy usage so I'm jumping in. Your ROI calculation will be different of course.

              • @Dogsrule: Yes my ROI is around 5-6 years now as I have been smashing the Ovo free 3 hour period so hard. If I couldn't it would be hugely different but I have often been using 30-45kwh for free every period haha.

                How long did you estimate your ROI to be? Funnily enough I put 10.56kw panels/8.5kw inverter on 13 months ago for $3900 and calculated a 4-5 year ROI and here I am considering replacing half the system (I would be DC coupling so remove old inverter) so no idea how that affects the ROI lol.

                Did not see the battery rebate being so considerable but then again I was so close to pulling the trigger on a 6.6/5kw system at the time. Goes to show how quickly tech becomes irrelevant and feel like in 12 months time the price could drop considerably

                • @Brick50:

                  I have been smashing the Ovo free 3 hour period so hard.

                  Same lol, I use about the same as you in the free period, except I then use another ~25kWh over the off-peak (45c/kWh) and peak (67c/kWh) periods.

                  How long did you estimate your ROI to be?

                  No more than 5 years at current electricity prices, less if prices continue to rise (lol of course they will)

                  Funnily enough I put 10.56kw panels/8.5kw inverter on 13 months ago for $3900 and calculated a 4-5 year ROI and here I am considering replacing half the system (I would be DC coupling so remove old inverter)

                  Just be thankful you didn't try to 'future proof' your solar system by buying a top shelf Fronius inverter - lots of people over at Whirlpool tossing expensive Symo/Primo models only a few years old.

                  Goes to show how quickly tech becomes irrelevant and feel like in 12 months time the price could drop considerably

                  My existing solar system cost $5.5k in 2023 - it will have paid for itself in another year. I'm pretty sure these low cost battery deals will achieve the same thing.

                  • @Dogsrule:

                    Same lol, I use about the same as you in the free period, except I then use another ~25kWh over the off-peak (45c/kWh) and peak (67c/kWh) periods.

                    Ouch!
                    I used to be on the EV plan before I got a 7kw charger. That was 8c overnight, 0c 11-2 and 42c all other times and I thought that hurt.
                    Now I am on 0c 11-2 and 28.7c all over times in Vic which is a pretty sweet deal.

                    Just be thankful you didn't try to 'future proof' your solar system by buying a top shelf Fronius inverter - lots of people over at Whirlpool tossing expensive Symo/Primo models only a few years old.

                    Too true, I remember getting scoffed at for not getting a high end hybrid inverter last year. Maybe I should have, but I would be pissed regardless having to pay another $1000 to unlock the ability to allow me to use the battery lol. at this price I feel like some people would be replacing 1-2y/o old hybrid inverters with these things

                    My existing solar system cost $5.5k in 2023 - it has almost paid for itself already. I'm pretty sure these low cost battery deals will achieve the same thing.

                    One thing that's hard to quantify is comfort, I am now monitor all my grid import/export by the minute on home assistant and in 3/6/12 months I will be able to get chatGPT to do a super accurate ROI for me based on 5 minute intervals and then compare it to different plans.

                    But the fact is currently I am smashing heating/cooling between 11-2 and then turning it off other hours and then turning it on when I really need it.
                    If I got this battery I would have my house a much more comfortable temperature for longer, and it would mean I wouldn't have to stress about doing the washing at a certain time, scheduling the dishwasher and stuff.

                    I feel like it's worth something to be able to basically heat/cool your house all day for free and currently worst case charge your battery for free for 3 hours in winter vs purely looking at ROI in comparison to my current usage.

                    • @Brick50:

                      Now I am on 0c 11-2 and 28.7c all over times in Vic which is a pretty sweet deal.

                      That is a pretty sweet deal.

                      Maybe I should have, but I would be pissed regardless having to pay another $1000 to unlock the ability to allow me to use the battery lol

                      Unlocking the inverter is the cheap part - the BYD batteries that have to be used with Fronius inverters would cost about $20k after rebates for a system as big as this FoxESS deal.

                      I feel like it's worth something to be able to basically heat/cool your house all day for free and currently worst case charge your battery for free for 3 hours in winter vs purely looking at ROI in comparison to my current usage.

                      Exactly my thoughts. I just want to set the AC to the temp I want, run washing machines, dishwashers etc whenever I want - the battery will give us that peace of mind which is definitely worth something.

        • You will want a newer inverter, they are more efficient and work with lower solar outputs.

          • @UltimateAI: Hmmm… seems whack getting a Fronius Gen24 and then replacing it after 1-2 years use. What a waste of money getting a premium inverter!

  • I'm aware you're not servicing VIC yet but if I had the panels and inverters that could already handle a battery, would that reduce the cost?

    Generally speaking, aware the answer is probably it depends.

    • +1

      This is taking into consideration that already, if you didn't have panels/inverter already it would increase the cost

      • Turns out I can't read properly, appreciate pointing me in the right direction.

  • Why offering a 42kwh battery and not something most household use like 20-25kwh?

    • EV charging

    • +1

      Because the 20kWh battery will only have half the rebate making the install a lot more expensive per kWh. For example, the Alpha 5kWh battery costs $5k to install, however the Alpha 30kWh battery only costs $7490 to install. You won't get many takers if you are advertising a 5kWh battery for $5k when everyone else is advertising a 30kWh battery for $7.5k.

  • -1

    For $5500 does it include installation?

    • From $5,500 - it does include installation.

      • What is the noise level?

  • -1

    This is cheap but note the battery system, although stackable, is quite bulky (not slim). You will need bollards if installed in the double garage. It might also not fit exterior on side of the house if narrow. You probably want to install this outside for home insurance compliance if there is a shady space. Anyway, good luck with warranty after install!

    • Bollards will be required regardless of what battery you install in your garage, can you tell me about home insurance compliance issues?

      You definitely don't want to install it outside if you can avoid it.

      • Why? If some coverage or shady why an issue?

        • -1

          Heat degrades the life, they often won't charge at cold temps at all or have a slower discharge rate, UV damage

      • It depends on what you value more, for the health of the battery it's definitely better to go inside the house if you have space. However, for peace of mind and safety, it's definitely better to be outside the house. There's always the risk of thermal runaway, you don't want your entire house to go up in flames because you were trying to stretch the battery life of this from 10 years to 20 years.

        • If this thing goes up in flames bolted to your house wall, chances are you're getting a new house anyway.

  • +1

    These batteries are Lithium Iron Phosphate (LiFePO4) and do not have any fire or thermal runaway risk like the more common Lithium Carbonate. Hence they are larger and heavier. They can also cope with much lower temperatures to -20 degrees.

    • So much safer for indoors?

    • These batteries are Lithium Iron Phosphate (LiFePO4) and do not have any fire or thermal runaway risk like the more common Lithium Carbonate

      Lithium Carbonate is a precursor chemical to and is present in all lithium batteries including LFP and ternary (lithium/nickle/cobalt) batteries.

      They can also cope with much lower temperatures to -20 degrees.

      Other way around - one of the few well known advantages that ternary lithium batteries have is they are much better than LFP in low temperatures. LFP start struggling below 0c (see Neovolt forums for confirmation of this) whereas ternary's stay strong down to -20c.

      LFP definitely far better in the other temperature direction though.

  • +1

    They say they're based in Parramatta but are offering this install in 3 different states. What happens if your system breaks down? How long do you wait for them to have a technician available or servicing your area? Weeks? Months? I'd be very careful engaging a super cheap & cheerful mob like this, there's not a lot of margin at that price so they have to find ways to fatten up their end.

    Yes it's cheap but it's still $5k++. Poor man pays twice!

    • +1

      I looked at the quote and it seems too good to be true as it includes 2 back up circuits, bollards, smoke alarms, concrete slabs, an 8kW hybrid inverter & 10m of cabling with no deposit required. Not sure what's going on here. All that stuff cost extra with the VoltX deal which added up very quickly. There are two advantages that this battery has over the Neovolt ones, the casing is white & the maximum operating temperature for capacity warranty purposes is 55 degrees instead of 50 degrees. Very tempted to switch as the offer is just too good. I mean we do have to remember that they will be getting an additional $13,200 from the government so they are actually receiving $18,700 for it which is not cheap. If they do 2 houses/day, that's $13M of revenue/year.

  • I gave my details on their website, no one has called me back yet.

    • I gave my details almost a week ago, but I still haven’t received a call.

      • gave my details yesterday, got a call, texts yesterday and a quote via email today. Coming to check my house on the weekend

    • Got a call and signed up for the deal.

  • No WA………..

  • Received an email informing that VIC is out at least till Nov.

    • VIC Prices for DC Coupled with 10-15m cabling from switchboard 10kw inverter/42kwh battery single phase:

      Solar Miner - 7k (have to provide bollard and smoke alarm)
      Fortune Solar - 7k (have to provide bollard and smoke alarm)
      Hybrid Solar Solutions - 8.8k
      Amazing Solar - 10.8k

      None of the companies reputation excites me very much so don't know what to do

  • I submitted a query on Sunday, was called today. Spoke to Frank who was very helpful.

    • +1

      Good to hear mate, we've been very busy!

      • Hi OP,
        Do guys only provide a 5-year workmanship warranty?

  • Anyone worried about the noise level of this? I believe they are in the 40-45db range which is certainly something to consider when choosing installation location. I feel like even in my garage my neighbours will be annoyed as I have a heat pump HW which is marked as 42db and I can hear it in bed 10m away when its running

    • Upon further research seems this may be inaccurate as it says they might be naturally cooled?

      • Yeah, they don't have any fans so there shouldn't be any noise aside from some buzzing when they are being charged/discharged. Where did you read the 45db info from?

        • Can't find it now actually so might have been looking at the wrong inverter

  • I already have a 6.5 kw solar system. In SA received this offer for $7,600 from another retailer:

    15 x Risen Energy Co Ltd 440w N-Type Solar Panels

    1 x FoxESS 10kw Single Phase Hybrid Inverter

    1 x FoxESS 41.94kwh (9 x EQ4800) Solar Battery

    The quote I received does not include garage installation (bollards, fire safety alarms etc $700 extra)

    Single story. Single phase, tin roof

    Is this a good deal?

    • Which supplier quoted that offer? I am also in SA and looking for a similar deal on a Fox ESS battery.

  • +2

    @Aussiesolarbatteries are you able to comment on the fact that the updated data sheet shows the battery has a DOD of 100% and a full 41.93kWh of usable capacity.

    With this upgrade from the 90% DOD it should be eligible for an additional 39 STC's @ approx $38 which I calculate is approximately another $1482 rebate.
    Have you heard from Fox ESS if they are planning to have their batteries recertified/retested by the CEC or whoever the governing body is for the rebates?

    If you look at this link here it current states it only has a usage capacity of 37.737 kwh (350 STC vs 389 if its retested)

    Here is the link to the STC calculator I used to make these assumptions.

    • Also recognised this and would like to get some clarification. Since the spec sheet has been updated at time of signing the contract if we are able to claim a refund.
      Actually when I'm looking at the stats on the clean energies council it states that nominal and usable energy are the same, 41.93kwh. which means we should be able to claim more credits. I also read through the contract and under "payments and STC's" it says you can claim the credits yourself.

      • +1

        Yes, I just replied to you on whirlpool. Since 10:30 last night the CEC website updated to show the whole 100% usable capacity.

        Here is a link to what it looked like 10:30pm last night so you know I’m not lying
        https://imgur.com/a/x7KtFJP

        • In the imgur link above, I still see the nominal and usable are different. Am I missing something?

        • +1

          i know you are not lying because yesterday afternoon I checked it myself, to see if the correct credits are applied and everything matched. I will give them a call know and see how we can get the extra $1000 cashback…that's the spirit of ozbargain right.

          • @AE: Please share as I’ve signed up too!

          • @AE: Did you get the same response as I did?

        • I had my rep tell me that ASB will not be amending the STCs for me, so I’m thinking of cancelling

          • +1

            @phirippu: From Solar Miner:

            “ Yesterday, we received an official communication from FoxESS confirming that they will be increasing the usable capacity of their batteries. This update is scheduled to take effect starting Monday, 9th September, and the revised specifications will be reflected across all platforms and documentation from that date.
            Please note that every morning, before preparing and sharing any quotation, we thoroughly review all the latest updates from manufacturers and suppliers. This ensures that our customers receive the most transparent and reliable information. The price we originally shared with you was calculated strictly on the basis of the usable capacity available at that time.
            Since the usable capacity, stock pricing, and STC values are now changing, we will be preparing a revised quotation for you. We kindly request you to wait until the end of today, as we will send you the updated quotation reflecting these new changes. This way, you will have complete clarity regarding the system specifications, pricing, and overall value.”

            Maybe Fox ESS are increasing product costs in line with the higher rebate which seems cheeky/unethical

            • @Brick50: Thanks! I wonder whether “clarity” means less or more expensive… 😂

    • I wonder if this is a new version of the battery or if the DOD will be updated to existing batteries as a firmware update.

      • +1

        some existing users have reported the firmware update, upgraded dod to 100%

  • +1

    Has the pricing gone up now for these units ?

    the website now shows they're difference prices to the original thread.

  • +1

    Available Systems & Pricing in original post:

    Standard | Price: $5,500 | Specs: Single-phase 8 kW inverter, 3 MPPTs + 41.93 kWh battery
    
    Plus | Price: $6,000 | Specs: Single-phase 10 kW inverter, 4 MPPTs + 41.93 kWh battery
    
    Ultra | Price: $7,200 | Specs: Three-phase 10 kW inverter, 3 MPPTs + 41.93 kWh battery
    
    Ultra Plus | Price: $7,700 | Specs: Three-phase 15 kW inverter, 3 MPPTs + 41.93 kWh battery
    

    As of this moment, on the website, the price on standard and plus is $1000 more and Ultra and Ultra Plus $500 more.

  • I talked to them a few weeks ago and they indicated prices were going up soon so not unplanned however I am always sceptical of sales tactics..

    • Deal currently says: 30 Sep 26 days left

      Also if anything you would think the price would go down or at least stay the same assuming a proper pass through of the updated DOD of 100% and capacity of 41.93kWh.That is to say, probably right to be skeptical.

      • +1

        Agree should go down now.

        Not sure what was the reasoning on the price going up, maybe the Foxx kit price change? Doubt it.

        • +1

          scare tactics, every retailer says "this is today only price, tomorrow is more" until you ask again tomorrow

          • +1

            @Brick50: Yes just sales 101, make it seem like a decision has to be made right away and don't let your customer sleep on a decision.

              • @Brick50: so they applied the extra stc credits? I will have to give them another call tomorrow and get another sales guy. Mine today wouldn't budge.

              • @Brick50: Would you be keen to share the quote? Thanks.

              • @Brick50: so thats even better than this offer? May I know which company is that with?

      • It's the simple economics of supply and demand. We all knew the deal was a bit too good to be true, obviously their demand went through the roof and they realised that they can jack up prices by $1k without any issues so why wouldn't they. To be honest, this makes me feel more reassured that it isn't a scam lol, this price is now more inline with the VoltX deal.

        It'll be interesting to see what happens as I'm sure they'll now claim the additional $1.4k in STCs even though they jacked up their price by $1k.

  • I had one of the sales guys on the phone cause wanted the price to drop down another $1400 and I pointed him to the new specsheet and the clean energy council website. He also mentioned that the prices have gone up instead by $1000. I quickly signed my contract from yesterday let them install the battery and then try to claim the difference directly from the government.

    • You can just claim directly? How do you determine the STC price as I thought you’d need to sell them to an aggregator?
      I really don’t think you can do this but I could be wrong

      • +1

        If you've got a quote already, you can scroll down to "payment and STCs" there is a section that says you can claim it yourself. If it doesn't work, so be it, its still by far the best offer on the market for my use case. Even with a standard plan I will break even within 8 years, well within the warranty period, that's all i wanted. All the other quotes with sungrow, byd, sigenergy will take 10-14 years.

    • +1

      Also, why the battery just become "better" overnight without any hardware changes!

      • Firmware?

        But yeah would've made more sense to make it 95% DOD. 100% maybe overkill.

        Also the main website hasn't updated this yet. Would be better to confirm with official support.

        • It will only be to maximise the rebates, it's probably harmful for the battery potentially but that would be the sole reason I assume? But they must expect it won't harm it enough to impact on any warranty.

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