This was posted 11 months 2 days ago, and might be an out-dated deal.

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VoltX 12V 200Ah Lithium Iron Battery LiFePO4 Rechargeable Battery $719 + Delivery ($0 to Most Areas) @ Outbax via Amazon AU

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VoltX 12V 200Ah Lithium Iron Battery LiFePO4 Rechargeable Battery $719 + Delivery ($0 to Most Areas) @ Outbax via Amazon AUAffiliate
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HappyPants on 25/05/2023 - 09:48 amazon.com.au (225 clicks)
Last edited 25/05/2023 - 12:05 by 2 other users
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Thought this was worth posting….haven't seen a half decent brand doing a 200ah at this price. Reliable seller, reliable brand. Soooo tempting!
Some decent specs:
Brand: VoltX

Nominal Capacity: 200Ah

Usable Capacity: 200Ah

Nominal Voltage: 12.8V

Energy: 2560wh

Charge Voltage: 14.6V

Discharge Cut-off Voltage: 10V

Charge Method: CC/CV

Charger: 14.6V40A

Max.Charge Current: 100A

Max.Continues Discharge Current: 100A

Max.Discharge Current 5 Sec.: 200A

Cycle Life: 2000times

Price History at C CamelCamelCamel.
Electrical & Electronics 12V 200Ah Battery LiFePO4 Lithium Battery Rechargeable Battery

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closed Comments

  • sourdawg on 25/05/2023 - 09:56

    $129.36 delivery to regional WA

  • vbt on 25/05/2023 - 10:02
    -1

    "Reliable brand"… I think not.

    • HappyPants on 25/05/2023 - 10:12

      You've had a bad experience personally? Not trying to stick up for the product here or anything, but it does have a 3 year warranty. I have personally purchased the cheapest 100ah LiFePo4 I could find on ebay and it was $255.00 delivered. I have had zero issues, and have given it a pretty good work out over the last 1.5 years. It still has a capacity of 105-106ah. One of the best purchases I've made, and the point is, this VoltX brand has a better warranty and much better specs. For less than $705 delivered, (with Amazon gift cards) I think this is a deal?

      • FLICKIT on 25/05/2023 - 10:31

        Where are you getting the "3 year warranty" from?

        Edit:
        It looks like VoltX offer 3-years if you buy from their site, but I cant find any details about the warranty on their site, so I'm not sure I'd put too much faith in that, it may be a pro-rata warranty or such like Renogy do…

        I believe VoltX is OutbaxCampings own brand, and they only offer 1-year on their ebay listing for this battery..

        This Amazon listing, and 3rd party seller HomeWork&Play, doesn't appear to mention warranty at all….

        • 0jay on 25/05/2023 - 10:55
          +1

          Doesn’t say what kind of cells they’re using either.

          I’m in the approach with caution camp. If you’re looking for a battery to give a long service life then I’d probly go with another mob.

          Good price though, all other things being equal.

        • HappyPants on 25/05/2023 - 10:57

          Yeah, fair call. I was hoping that the warranty would still be 3 years, but I didn't verify. Might be worth looking in to. Possibly Amazon themselves might come to the party if there was a warranty issue? I am not sure though. VoltX do sell gazillions of batteries. Even Aldi stock them at certain times. Seems like with the current ebay codes a 200ah can be had for under $700 anyway. So this might not be the best buy anymore.

      • vbt on 25/05/2023 - 11:49

        They're great for powering fridges and LED light strips.
        The "Campfire Engineers" love 'em.
        Hook it up to a 2000w inverter and make me some bacon and eggs.
        Ask for a picture of the BMS board and try not to laugh.

        • Prong on 25/05/2023 - 12:01

          Yeah 100A continuous is easily exceeded if people don't read the spec. Good for lighter loads, but not want you want if trying to use 240V cooking appliances.

  • tunzafun001 on 25/05/2023 - 10:36

    If I want to run a coffee machine (1250 watts)… I guess this will just scrape in when charged 50% or more (ie 100A above 12.5v), but won't work for the bottom half of the charge when the voltage drops below 12.5v)?

    My 'old" electric outlander (10 years now) supplies 200A to the 12v battery. But I guess that is coming from 400v to 12v via a DC converter.

    • krunel on 25/05/2023 - 11:21

      an inverter will add 5-10% or more, so if the appliance requires a sustained 1250w the battery will be supplying > 1300w. That'd make it harder to stay under 100A from the battery, unless you're putting in charge at the same time, e.g. solar

    • vbt on 25/05/2023 - 12:20

      1250w will pull approx 97 amps.
      2000w Induction cooktop - 160 amps. These 'things' just aren't built for it. Great for fridges and LEDs if you like paying for a full tank of gas and getting 3/4 of a tank of E10.

      • HappyPants on 25/05/2023 - 13:44
        +1

        So….what DO you recommend? These "things" have their place in the market, and let's face it, are a million times better than AGM at half the weight, and these days, at these prices, not heaps more $$$.

        For a 200ah battery that does happily pull 200a continuously, what do you recommend? And it will be nowhere near $662.00 I bet. You're being pretty hard on a $660 battery IMO. There is a market for these and they have their place and suit many ppl.

        • Prong on 25/05/2023 - 14:29
          +1

          Yeah exactly, and VoltX have a Plus version of the same battery with 200A output, 5 year warranty and higher cycle life.

          With the 22% off, it is $857.22. (down from $1,099)

          https://www.ebay.com.au/itm/165498365423

          Taking a quick look around, I can't see anything that comes close to that level of value.

        • vbt on 25/05/2023 - 14:35

          You pay $662, you get $662.
          And yes there is a market for them… people with tents.

          • HappyPants on 25/05/2023 - 14:43
            +3

            @vbt: Thanks for your super helpful comment.

    • Prong on 25/05/2023 - 14:23
      +2

      Yeah too close. Taking a quick look, I think you best bet would be to go for the "Plus" version of the 200Ah battery.

      It's rated for 200A output, and has a longer 5 year warranty, and rated for more cycles.

      With the 22%, it is $857.22. (down from $1,099)

      https://www.ebay.com.au/itm/165498365423

      Some of the specs on the eBay listing (like 4000 cycles) don't match the VoltX site so best to get the exact details there.
      https://voltx.com.au/products/voltx-12v-200ah-plus

      If more capacity is useful, then the 300Ah model (not a Plus version) is $1,099. It does 200A output.

      https://www.ebay.com.au/itm/295476545658

      There is a 300Ah Plus version for $1,299. But it' the same 200A output, and the extra $200 mostly just gets increased warranty and higher cycle life.

      https://www.ebay.com.au/itm/234565139132

      • HappyPants on 25/05/2023 - 14:31

        Awesome info, thanks for compiling all that.

      • HappyPants on 25/05/2023 - 14:34

        https://www.ebay.com.au/itm/394285720058?hash=item5bcd42a1fa…

        There is also this 300ah for $904, has continuous at 200a also. But only 2 year warranty.

        • Prong on 25/05/2023 - 15:07
          +2

          Mobi are scam batteries unfortunately. There are some YouTube videos with capacity tests, and they are 30% to 50% less than advertised.

          https://www.youtube.com/watch?v=gyCd-fP1yK4

          The listed weight is only that of a 200Ah, for example.

          I would not trust Mobi as a brand (or SUNYEE as a seller / importer) at all. Many of the batteries and solar panels ratings are 100% known fakes.

          This is easy to see with their AGMs too. All their "Deep Cycle" AGMs are labelled for capacities a size or two higher than what is possible in the physical dimensions and weight. Having capacity tested one, it was a 100% scam, and was a very basic battery with about half the rated Ah. I kindly pointed this out to SunYee, and had a lot of discussion, but they continue to sell them.

          • HappyPants on 25/05/2023 - 16:16

            @Prong: Wow, that's super good to know. For what it's worth, I have a little 30ah Digimarker (i think that's what its called) and its been going strong and the capacity is correct. (Tested with a little Victron Charger)
            Thanks again for the info on the Mobi range tho!

  • rooster7777 on 25/05/2023 - 10:42
    +3

    I'm not sure why the OP states the supplier as outbax, when amazon shows homework & play.
    Sloppy work including battery type as "lead acid" in the amazon posting.

    Product review check of outbax shows a large number of positive reviews… including such inane ones as I haven't used it yet but it will be great.
    Dig into the significant number of negative reviews (which have a lot more assurance of being genuine) …. the result is more along the lines of my picture of them, whatever name they are using.

    I strongly believe that one can gauge the credibility of a seller by what happens when something goes wrong, not by the happy responses.

    A three year warranty is close to worthless if they don't actually do anything constructive when there is a product failure.
    A bit like that tool place…. not sure on the name…melbourne tools? ahem… The online merchant (not one of the bricks and mortar outlets) sent me an expensive DOA device, that was a nightmare getting any resolution about. If the seller is crappy, what can you do? Go to all the hassle of taking them to court is the only option.

    I encourage people to look at negative reviews for outbax on product review, and how the business handles them. (hint… my belief is inane obfuscation, but you make up your own mind)

    • HappyPants on 25/05/2023 - 10:53

      Yeah, I am not sure why the mods? updated the listing saying that Outbax was the supplier? I didn't add that. That wasn't in my original description.

  • Prong on 25/05/2023 - 11:15

    ~ $685 on eBay using the eBay Plus PWE22 22% off code.

    https://www.ebay.com.au/itm/334706252622

    Various sellers with it too. Some as low as $662, however spec appears slightly different with lower 'standard' charge current.

    https://www.ebay.com.au/itm/334706252622

    • Prong on 25/05/2023 - 11:22
      +1

      Also 100Ah for ~$350
      https://www.ebay.com.au/itm/304479108263

      And 300Ah for ~$1099
      https://www.ebay.com.au/itm/295476545658

      There are multiple sellers at these prices - not just the ones linked.

      100Ah = $3.50 per Ah
      200Ah = $3.43 per Ah
      300Ah = $3.66 per Ah

      2x 100Ah is a bit more expensive, but in parallel, gives double the current output, if needed, compared to the 200Ah.
      Edit - found a seller with 2x 100Ah for $879, so $686 after discount.

      • Regie69 on 25/05/2023 - 11:32

        cheaper here. https://www.ozbargain.com.au/node/776884
        do you have the 2x100Ah link

        • Prong on 25/05/2023 - 11:44

          Whoops sorry, missed pasting that link.
          https://www.ebay.com.au/itm/275458020712

          Note re: the 2x batteries in parallel. The manual does not state if parallel connection is supported in this version (only the Plus version lists it)

          https://voltx.com.au/products/voltx-12v-100ah

          I linked one of the $662 sellers in my above above post, but noted that there is some differences in the listed specs.
          I did not investigate further to see if it is a slightly different model, with a different BMS.

          • Regie69 on 25/05/2023 - 21:22

            @Prong: Ahh ok, didn't realise there was a difference . Thanks for the link

            • Prong on 25/05/2023 - 21:34
              +1

              @Regie69: Yeah few of of the sellers seem to bother including the "Plus" part. The easiest way to tell is the Plus batteries all have 5 year warranty. The discharge cut off voltage is also typically higher, but the sellers often have the wrong specs listed.

              The "Plus" version of the 200Ah battery is also a good deal if 200A output is needed.

              With the 22%, it is $857.22. (down from $1,099)

              It also has a longer 5 year warranty, and rated for more cycles.

              https://www.ebay.com.au/itm/165498365423

              • FLICKIT on 25/05/2023 - 22:00

                @Prong: I'm not sure I'd put much faith in the claimed warranty, especially when they dont detail the conditions…. As with most ebay items you probably dont have much of a warranty once the Paypal protection expires..

                i.e. A LiFePO4 battery is classed as "end of life" once it drops to 80% of rated capacity, will they refund the purchase price or replace it if this happens in under 5 years?, I very much doubt it…….

                • Prong on 26/05/2023 - 09:03

                  @FLICKIT: Warranty would likely be easier directly with VoltX (an Australian company) depending on eBay seller. When I investigated the brand a while back when buying some batteries they had the specific warranty terms but I can't spot it now. It was basically the same as any other comparable battery warranty - replacement for major failures, or pro rata replacement / refund otherwise.

                  There are many teardowns etc for VoltX batteries, and the general consensus is they are reasonable well built for the price with no major concerns or likely failure points for normal use. The cells are likely lesser grades that don't meet the cut for more demanding uses, but are purely fine for the relatively modest output spec of the BMS used. Unlike many of the batteries at a similar or cheaper price point, they meet their rated spec, and so far no longevity issues have cropped up for people cycling them daily.

      • FLICKIT on 25/05/2023 - 11:45
        +1

        They generally advise not to run these cheap LiFePO4 batteries in series or parallel…

        • Prong on 25/05/2023 - 11:51
          +1

          Excellent point. I was remembering the 100Ah Plus versions of the batteries which specifically has a BMS that supports six batteries in parallel. The 100Ah Basic does not specify either way in the manual, so absolutely - best avoided. Or worth checking with VoltX before trying it.

          • Prong on 25/05/2023 - 14:30

            @Prong: Just to add, for 200Ah output, VoltX have a Plus version of the 200Ah battery with 200A output, 5 year warranty and higher cycle life.

            With the 22% off, it is $857.22. (down from $1,099)

            https://www.ebay.com.au/itm/165498365423

      • vbt on 25/05/2023 - 12:21

        No they do not give double the current output.
        Capacity is doubled, output is not. It is limited to the rating of 1 of the 'batteries'.

        • Prong on 25/05/2023 - 14:41

          Parallel connection gives double the capacity, and double the output current.

          Think of it like the batteries working as a team. Each battery can provide 100A, so if a load wants 200A, they can work together and provide 100A each, for a total of 200A.

          Series connection gives double the voltage, but the same current output rating as one battery.

          An easy way to check is to calculate the power. P = V x I. (Power = voltage x amperage).

          Parallel: 12.8V x 200A = 2560W
          Series: 25.6V x 100A = 2560W

          • Prong on 25/05/2023 - 15:48

            @Prong: That said, I was looking a listing with incorrect specs and didn't check the VoltX website when I said the 100Ah battery had a 100A output. The VoltX Basic 100Ah has a 50A continuous output, 100A for 5 seconds. The Plus does 100A continuous.

            Two Basic 100Ah batteries in parallel gives double the continuous output current. 50A x 2 = 100A. Which is the same as the 200Ah battery.

            Capacity is doubled, output is not. It is limited to the rating of 1 of the 'batteries'.

            Key is that parallel connection gives double the capacity, and the output rating of the batteries added together. It's series connection that gives the current rating the same as one of the batteries.

  • Prong on 25/05/2023 - 11:39
    +2

    I run 100Ah VoltX batteries in a houseboat. The Plus versions but ultimately they are very similar.

    These are not fancy batteries, but they meet the advertised spec and have no stand out deficiencies. There are teardowns of the batteries that conclude the same - they are built to a price point, but not built poorly all things considered. They are actually the capacity stated, and longevity seems as expected.

    https://youtu.be/XOSnaGev07E

    For people who need ultra reliable, or ultra tough batteries, then these are not the best bet. But for most people they seem pretty good value - especially when on sale.

    VoltX offers a range of other cheap gear that unlike many sellers, is actually the spec they claim. Again, not stand out quality, but good for the price.

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