Victron Multiplus II 48/5000 Inverter & 2x 51.2v 100Ah (Total of 10kWh) LiFePO4 Batteries $5999 Delivered @ Muller Energy

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Victron Multiplus II 48/5000 Inverter & 2x 51.2v 100Ah (Total of 10kWh) LiFePO4 Batteries $5999 Delivered @ Muller Energy
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Store RepMullerEnergy on 16/03/2024 - 21:32 mullerenergy.com.au (2330 clicks)
Last edited 16/03/2024 - 21:33

PRESENTING THE IDEAL SETUP FOR AUTONOMOUS OFF-GRID LIVING 🔋🌿

This bundle delivers exceptional value and consists of:
High-quality VICTRON MULTIPLUS II 48/5000 for seamless integration into your off-grid system ⚡
Plus
2 x Muller Energy 5KWH 51.2V 100AH LiFePO4 Batteries
These batteries boast reliable and secure automotive-grade EVE cells and are supplied with power and communication cables.
Furthermore, Muller Energy offers:
• Optional personalised pre- and post-sales support from the battery designer
• Free nationwide delivery across Australia
• 5 Years Australian Warranty

All of this for just $5,999 🌟

As always, if you have any questions, please feel free to ask, I'm more than happy to answer any (relevant) question. 🙂

Thanks,
Ruben

Electrical & Electronics 100Ah Battery LiFePO4 Lithium Battery Power Inverter Rechargeable Battery Victron

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Muller Energy
Muller Energy

Comments

  • easternculture on 16/03/2024 - 21:33
    +2

    Nice for rv or caravan setup.

    Why dont you guys make a bundle with a 1kw worth of solar panels

    • Store RepMullerEnergy @ Muller Energy on 16/03/2024 - 21:36

      We've had a couple of people buy it for that, but most people buy them for off-grid homes. But either way, it's a great option!

    • jamesorion on 16/03/2024 - 21:51
      +2

      Most of the caravan industry is still foolishly trying to use 12v to power large inverter chargers, and the same goes for the vast majority of people trying to convert theirs to be off grid.

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 00:38
      +1

      I just saw the solar panel comment. Not sure if you edited it or if I missed it earlier.
      For a mobile application this a good suggestion as we've got the best prices for flexible Sunman solar panels in Australia as well (generally regarded as the best flexible solar panels).
      However we've found that it's very difficult to ship these and shipping cost can also vary greatly on what the location is, so having a price including shipping makes it a bit difficult.

  • FLICKIT on 16/03/2024 - 21:57
    +4

    The inverter is worth about $1500, so about $4500 for the batteries which equate to about 8 x 12v 100Ah batteries, = about $560 per 12v ~ 100Ah…

    Not bad for an established Aussie company using decent cells with a real/local 5 year warranty… (assuming there's no 'get out of jail free card' like clauses in their warranty?)

    Edit: the batteries are $2300 each normal price: https://mullerenergy.com.au/product/48v-100ah-lifepo4-batter…

    • Store RepMullerEnergy @ Muller Energy on 16/03/2024 - 22:08
      +1

      Thanks!

      There are no "get out of gaol free" cards here: https://mullerenergy.com.au/refund-and-returns-policy/

      • FLICKIT on 16/03/2024 - 22:16
        +1

        Thanks, I just threw that comment in due to things like the dodgy Renogy "prorated" type battery warranty, and I couldn't be bothered doing a deep dive into your warranty due to having a few wines under the belt :p

    • dingaling2 on 17/03/2024 - 10:09
      +1

      Where can you find this inverter for $1500? Thats ridiculously cheap for a 48V 5kva Victron inverter.

      • Deliotron on 17/03/2024 - 11:17
        +1

        1600 with ebay plus, not bad indeed

      • FLICKIT on 17/03/2024 - 12:58
        +4

        $1452 with code MAR17
        https://www.ebay.com.au/itm/283831664664

      • Dsiee on 17/03/2024 - 15:21
        +1

        They have dropped the price a heap in the last year.

        • Sunny84 on 17/03/2024 - 21:27

          I think ever since their Multiplus-II CEC approval got knocked back for functioning as a grid tie inverter.

          I got a Multiplus-II 48v 3000w inverter with a Cerbo-GX for $980 but returned it for GoodWe inverter with 48v battery support for little more.

          • AssociatedRubenM @ Muller Energy on 18/03/2024 - 09:06

            @Sunny84: The 48/3000, 48/5000, 48/3000 GX and 48/5000 GX all got CEC approval in November.

            Took them a while, but they got there in the end!

            • Sunny84 on 18/03/2024 - 10:34

              @RubenM: CEC approved as Stand Alone Inverter With Generator Input Battery Only right? Stand-alone inverters may not have a grid interactive connection to the mains supply.

  • jmadden91 on 16/03/2024 - 22:16

    Is this able to be set up in a grid connected system as well?

    • Store RepMullerEnergy @ Muller Energy on 16/03/2024 - 22:34

      Able? Yes. CEC approved? Not yet!
      The Victron inverter has CEC approval, but our batteries do not yet. You can use it by having a transfer switch and an MPPT, so it's not technically connected to the grid.

      Should you be after a grid-connected battery, we can also supply this. Please feel free to send us an email at [email protected]

      • jmadden91 on 16/03/2024 - 22:47

        Yep I meant are they allowed to be connected to the grid. Awesome, thanks for the info. Assuming the batteries could be connected to the grid, for a grid connected system, would you be better off with the victron inverter or a standard PV Hybrid inverter?

        • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 00:35

          It depends. I think there's no right or wrong answer. The Multiplus is a fantastic piece of kit and has many functions that a standard hybrid inverter either doesn't have or at least that aren't accessible to the user.
          So depending on what you want to do, this might be the better system.
          On the other hand, a hybrid system takes a lot of the thinking out of it. Installation is straight forward and it's pretty much a set and forget type of thing.

        • Grayman006 on 17/03/2024 - 09:13
          +2

          It will use grid as failover but won't sell/export to the grid. Being that there's no exporting of power, you don't need 'permission' to connect to the grid as it's essentially a UPS in battery priority mode.

          And who'd want to give away their power for pittance?

  • t25 on 16/03/2024 - 22:39

    Would this be ideal for a shed? Thinking of running workshop things like fans, power tools, chargers, lights, and maybe an aircon.

    • Store RepMullerEnergy @ Muller Energy on 16/03/2024 - 22:46

      If you want aircon, then yes. If not, it depends on what sort of power tools you're looking at running, as it could be an overkill.
      Depending on how you want to charge the batteries, you may also need an MPPT (solar voltage regulator) and solar panels.

      • t25 on 16/03/2024 - 23:33

        Power tools include your typical air compressors, drills, table saws, routers, and what not.

        Aircon is something I might put in down the track as I'm still building at the moment.

        • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 00:31
          +1

          In that case, it's probable not a bad option as air compressors and table saws can be pretty power hungry.

          • t25 on 17/03/2024 - 01:10

            @MullerEnergy: Cool! Will get in touch with you for Victron stuff. I am undecided if I should get new solar panels or go down the used route as a test run.

            • easternculture on 17/03/2024 - 09:28
              +1

              @t25: You could buy them on fb marketplace for near to nothing for test run. And then upgrade new if your happy

            • Dsiee on 17/03/2024 - 15:24

              @t25: You might he able to get some for free from your local government recycling centre / tip. Ours has a shipping container that is just full of them all the time from people upgrading in our small town.

              • t25 on 18/03/2024 - 11:22

                @Dsiee: I would definitely like to check this one out. Could also give me more insight on how solar works.

  • Wiadro on 16/03/2024 - 22:41

    Mmmmm would this be good for me tent ?

    • Store RepMullerEnergy @ Muller Energy on 16/03/2024 - 22:46
      +14

      Tent Mahal? If so, yes!

    • LowRange on 17/03/2024 - 15:40

      For your cannabis grow tent? Yes definitely, by the time you run a few Spider Farmer SE1000's, AC Infinity exhaust, heating/ac, dehumidifier etc you will be on track.

  • shaidas on 17/03/2024 - 01:02
    -6

    LIFEPO4 vs Telstra power wall .. I can google it but Id rather get a real life feedback.. why are the residential power saver batteries so expensive when a 10 Kwh Lifepo4 is so cheap ?

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 01:09
      +6

      Obviously, I have a vested interest, so take my option with a grain of salt.
      I personally would not want an NMC battery in or on my house, given the violent reaction that will likely take place if a cell is punctured or overcharged (I know there are safeguards to significantly reduce the risk of this happening in the first place, but I still think the risk is too high).

      There are two main reasons (that I'm aware of) why LiFePO4 has become cheaper than NMC:
      * Economies of scale: An incredible amount of LiFePO4 cells are being created.
      * Both nickel and cobalt are expensive and they aren't present in the LiFePO4 batteries

        • dtpearson on 17/03/2024 - 07:16
          +24

          Everything he said is factual, and he disclosed his conflict of interest. I am not sure what more you can ask for from anyone that is an expert on any topic. His opinion is perfectly valid if the above holds. (and that is my opinion, somebody that has a NMC battery in my house, that has an opposing viewpoint)

      • Dsiee on 17/03/2024 - 15:25

        I don't have a vested interest and just want to say I agree 100%.

    • wfdTamar on 17/03/2024 - 05:40
      +1

      It is a good question as you can buy LiFePO4 cells for about US$100 for 1 kWh. Although those are the ones that haven't passed the strict standard for EV's or domestic power use and that's the price ex China with a shipping wait and difficult/no warranty. Even so, if you use a system along the lines of what's posted here you can get a setup far cheaper so you do wonder why solar batteries are so expensive. I think it's that we're still in the 'charge 'em what they're willing to pay' early adopters phase.

      I've just built a 626Ah 12 volt battery for my motorhome (coincidentally with a Muller Energy BMS) which ended up around $2000. Now I did have an issue with one cell and after a lot of fuss I'm having to wait for a replacement to be shipped from China (where I bought the cells from), so there is a penalty for going uber cheap DIY.

      • dtpearson on 17/03/2024 - 07:25

        This is so true we are definitely in the "charge 'em what they're willing to pay" phase. I paid $11k for a Tesla Powerwall 2 in 2016. Lithium cells were approx $250 per kwh, and they are now down to about $100 per kwh. And yet a Tesla power wall with the same capacity is MORE expensive at $13k.

  • butter on 17/03/2024 - 05:31

    Do you guys offer an installation service?

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 10:52

      We don't, but depending on where you are in Australia, we may be able to recommend an installer.

      • CletusDB on 17/03/2024 - 13:19

        Can you recommend anyone in Vic (East Suburbs) ?

  • sweetss on 17/03/2024 - 07:01

    OP, can you say something about the longevity of your LiFePO4 system and how it compares to NMC?

    • dtpearson on 17/03/2024 - 07:31

      LFP are still in their early days, but very roughly they can last twice as many cycles as NMC. That said, they both degrade over calendar years anyway. So the electrics around them will likely fail before either cells die, so what does it matter if one has 90% of its capacity at that time vs 80%. I live 500m from the beach and I have noticed that my Tesla PW2 has a tiny bit of rust in a corner that is out in the elements at 6 years old. The main benefit of LFP is that they are cheap (and maybe less prone to thermal runaway).

      • dingaling2 on 17/03/2024 - 10:15
        +2

        Early days? I think that's not true anymore. Lfp are proven. My first LFP bank is now ticked over 10 years old. Cycled daily and here is what i can tell you.The charge efficiency has dropped from 99% to 95%. The cells went from 160AH to 140AH of capacity. But all working perfectly fine still to this day - Incredible batteries.

      • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 11:10
        +1

        Exactly right. I get calls from people on a weekly basis asking if they can do this or that to extend battery life. This is usually for caravans/campervans/4WDs that cycle the battery less than once a week.
        I then tell them that if they did everything they can to decrease battery life, they'd still get over 2000 cycles out of them, which for them would be over 40 years.
        Obviously I'm not claiming our batteries will last 40 year, but I'm just trying to highlight that the usage-based degradation isn't really that much of an issue.
        It changes a bit when you cycle daily or multiple times a day, but the 2000 cycle figure is also much lower than any quoted cycle lives (the battery posted here is rated at 6000 cycles), just to make a point.

  • dtpearson on 17/03/2024 - 07:43
    +2

    It just occurred to me that yesterday's news reports of four lithium battery fires (all cheap/crappy little devices or their cheap/crappy chargers) is likely going to be the norm moving forward. With so many devices coming with lithium batteries of every kind, there is bound to be the odd one fail spectacularly, and with the mainstream media being so anti-EV expect every single one to splashed on to headlines.

    And there will be exactly zero headlines about the other 12,000 house fires that occur in Australia every year, 99.9% that are NOT lithium battery related.

    It's just like all the new laws and regulations around drones (for public safety of course). Remember everyone "new = bad"

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 11:18
      +4

      I'd be surprised if any of the four fires were LiFePO4 batteries.

      It's a bit of a pain that all lithium chemistries are lumped together, given how much the risk profiles differ. But at the same time, I get it too, I wouldn't expect a layperson to understand exactly what the differences are.

      More of my business is in mobile applications and people often come to me with safety concerns. Now, are these batteries 100% safe? No, nothing is. But the funny thing is that they're definitely safer than a lead acid battery and hardly anyone has safely concerns about those.

      • LowRange on 17/03/2024 - 15:51
        +1

        Not in the market for a system, but just want to say its refreshing seeing a business rep in this sector knowing their stuff and being 110% honest and up front.

        • apey2000 on 17/03/2024 - 16:47

          Totally agree!

          It's the complete opposite of all those 'deals' advertising AliExpress junk at inflated prices.

        • easternculture on 17/03/2024 - 18:38

          absolutely, will be using these guys when im ready for solar.

          Just my roof will need renovation at some point in time , which is stopping me

        • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 22:10

          Thanks very much!

  • devpress on 17/03/2024 - 09:58
    +1

    Dumbo question but can these be used as battery storage in a residential setting with existing solar panel/microinverter setup?

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 10:52
      +2

      Yes, they can, but as I mentioned above, these batteries don't have CEC approval yet. We'll have it later in the year, but right now you would not be allowed to connect to a grid connected system.

  • Tafe on 17/03/2024 - 10:09
    +5

    Nice rep engagement

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 10:51
      +3

      Thank you!

  • dingaling2 on 17/03/2024 - 10:16

    For Off grid LFP is what you want.

  • trippyfoo on 17/03/2024 - 10:59
    +1

    Thanks for the post OP and all the different contributions.. As someone on the sidelines looking into the future for a solar and battery system, the battery storage costs in this instance is something that I am more comfortable with.

  • gumbs on 17/03/2024 - 11:42
    +3

    Post back when you get CEC approval and people can actually use these batteries legally.

    AS 5139 and as a result CEC are not only applicable to grid connected batteries in most states. While there are pathways to building a system that is safe and complain without CEC approval, it isn't achievable for most people.

    Unfortunately people are far better of paying the extra $800 each for an equivalent pylontech that is legal to use so they can get an electrician to install it legally.

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 12:39
      +1

      Under AS5139, these would be classified as category 3 batteries, no?

  • Sunman on 17/03/2024 - 12:04
    +3

    I am still waiting to get V2G tech reasonable in Australia, so we can all finally start using our massive battery packs sitting in the garage. I dont even care about connection to the Grid, I just want the EV to run the house.

  • raybies on 17/03/2024 - 14:20

    What would I need to get 230V out of it?
    What would be the real-world continuous A output at 230V?
    Does it come with the casters, ie can I move it around?

    So far all the 5-7kW generators I have tried have failed to run a 2hp bore pump and the W meter says it uses max 2.2kW.

    • AssociatedRubenM @ Muller Energy on 17/03/2024 - 15:14

      This is where power factor comes in and makes things a bit confusing!

      2hp should be 1492W from memory, but perhaps what your meter is reading is apparent power (VA) instead of real power (W).

      So this would give you a quite poor PF of 0.68.

      Given that inverters are rated in VA instead of Watts as well, assuming all your loads have a PF of 0.68, this inverter would give you a power output of just over 3400W and an inrush power of 6800W.

      I hope this makes, sense, given its quite a complex subject (literally, as it uses complex numbers).

      • raybies on 17/03/2024 - 15:24

        Thanks, so a real minimum of 14A out @ 230V.
        What extra would I need to get 230V out?
        Casters, mobile?

        • AssociatedRubenM @ Muller Energy on 18/03/2024 - 12:19

          This will do 230V out at 22A, but the issue is that P=VI doesn't hold true for AC unless you factor in power factor, so P=VI*PF is correct if you're talking about real power.

          You'll be able to run anything that can plug into a 10A socket on this and most things that plug into a 15A socket.

          They can come with casters and that would be $120 extra.

  • belake on 17/03/2024 - 17:19
    +2

    I'm just about to tick over 2 years of my Muller Energy slimline lithium battery in my ute and it's been absolutely flawless. It's a great quality battery for a reasonable price.
    Bonus is your supporting a Australian business and the customer service is top notch. They have a great Facebook page for any issues or questions and Ruben is always willing to help.

    I hardly ever write up any experiences with a business but I'd happily recommend anything they sell. I just wanted to share my experience with a company that deserves the business.

    • Store RepMullerEnergy @ Muller Energy on 17/03/2024 - 22:09
      +1

      Thanks very much, I really appreciate it!
      The positive testimonial is great to get new customers, but what I like about it even more is that allows us to see that we've hit the mark on customer satisfaction. I know every company says it's important to them, but we really place a big emphasis on it, so it's fantastic to see when the effort we go to is being appreciated! 🙂

  • Snapdank on 01/04/2024 - 17:24

    would love demo video of the system muller and mabey a look inside

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