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12V 100Ah LiFePO4 Lithium Iron Phosphate Battery $231.37 Delivered @ Outbax eBay

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12V 100Ah LiFePO4 Lithium Iron Phosphate Battery $231.37 Delivered @ Outbax eBay
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King Tightarse on 29/03/2024 - 13:08 ebay.com.au (1869 clicks)
Last edited 05/04/2024 - 14:37 by 1 other user
SAVHGT

FURTHER EDIT
- deal still continuing but SAVHGT code now thanks to HappyPants for pointing this out https://www.ozbargain.com.au/comment/15135930/redir

12V 100Ah Lithium Iron Phosphate Battery LiFePO4 Rechargeable Camping RV
These have pouch cells and are usually sold as 'Gentrax' brand.
The final price is $231.37 with code ($251.37 without) + free shipping

NOTE - discount is automatically applied in checkout.

Dont forget to use your Cashback company and please share your thoughts if you bought this last time.

Electrical & Electronics 12V Battery LiFePO4 Lithium Battery Rechargeable Battery

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closed Comments

  • matthewperk on 29/03/2024 - 13:20
    +4

    Some key details from the ad re: charge and discharge currents:
    Max.Charge Current: 100A
    Continuous Discharge Current: 100A
    Max.Discharge Current (5sec): 200A

    Sounds better than some of the other cheap ebay ones. I'd be interested to know if anyones tested them at those limits. And also if anyone knows what BMS they've got.

    • Look Up on 29/03/2024 - 15:27
      +3

      Sounds better than some of the other cheap ebay ones.

      For outdoor usage only connected to non-critical loads, the price is OK

      Pouch cells at these prices means you should get at least 500 cycles before any issues with swelling

      And also if anyone knows what BMS they've got.

      Given their warning about wiring them in parallel or series, assume a barebones bottom tier BMS:

      IMPORTANT: While our LiFePO4 batteries are top-notch & can be wired with other batteries of its kind, it is not advisable to connect any LiFePO4 batteries in parallel or series.

      • banana365 on 29/03/2024 - 17:56
        +1

        Any? That's very common practice. They can't have a lot of trust in their batteries.

        • Look Up on 30/03/2024 - 11:58
          +1

          They can't have a lot of trust in their batteries.

          They don't have a stated voltage discharge curve either which makes it automatically B-tier

          B-tier cells, BMS, build quality or a combination of all three, you're rolling the dice with this battery

          As long as you use it outdoors on non-critical and light loads, the risk can be controlled

    • bargainshooter on 29/03/2024 - 16:01
      +2

      No way these will do 100a continuous.

  • Alpine58 on 29/03/2024 - 13:23

    Shows ~$360 for me.

    • King Tightarse on 29/03/2024 - 13:25
      +3

      Need to go to cart and have eBay plus

      • Alpine58 on 29/03/2024 - 13:27

        Ta. Was only showing ~$30 eBay + discount before

    • chyawala on 29/03/2024 - 14:32

      I think these previously were specced at 50 Amp continuous discharge.

  • vash12 on 29/03/2024 - 13:24

    Lifepo4 + Battery box + Inverter or this

    • King Tightarse on 29/03/2024 - 13:28

      If you want a one and done solution get the Bluetti, if you want to control and be able to switch out each component in case of a failure or the wish to upgrade, go the battery box route.
      We really dont know how good the inverter and battery are inside the bluetti. Might be OK, might be very average.

      • Alpine58 on 29/03/2024 - 13:29

        What solar charger would you recommend for this? I have a box with 2 x Anderson Plugs on it.

        • King Tightarse on 29/03/2024 - 13:30

          Don't know about that subject sorry

        • Bimbobob on 29/03/2024 - 20:58

          Pretty sure the amps that you can put back into those bluetti units is pretty low.

          Depends on your intended use but most campers short of needing an inverter for induction cooktop type of stuff will do fine just with a lithium battery in a box and fold out solar blanket.

          You see people running welders/portable AC/induction cooktops off em but 3k for decent bluetti and its only able to take in 15a solar charge is pretty shite no offense if running high draining appliances

    • Alpine58 on 29/03/2024 - 13:28
      +3

      Having trouble with a few "all in ones"… Their capacity seems to fall very short. I love the concept though!

      Did a test on a VCTOMAN portable power station and it's only ~65% of rated capacity. They sent me a replacement but it's exactly the same.

      • Headless on 29/03/2024 - 13:40
        +1

        Im going for both, can charge the battery once the bluetti is full, and keep it as emergency power for when the bluetti is empty and no sun, 12v in and 12v out😉

      • Mums Poop Sock on 29/03/2024 - 14:35

        My previous lifepo4 was an older outback 100ah and I'd get close to 100 before voltage would drop off.

        I also went through two of them due to their internal bms failing. They were older ones though.

      • Bimbobob on 29/03/2024 - 21:06

        Solar charge rate on em falls short too. Big watt numbers but that doesnt translate into amp hours.

    • FLICKIT on 29/03/2024 - 13:31

      Horses for courses, it depends on your situation… If you're decking out a vehicle the individual components are probably better, if you need a portable setup for casual tent/car camping the all-in-one may be better….

      Capacity is also a factor:
      All-in-on = 716Wh
      100Ah Battery = 1200Wh

      • vash12 on 29/03/2024 - 13:42

        Thanks mate - and the easiest way to charge the battery inside the box is to use some sort of battery/trickle charger ?

        One more thing to purchase with the battery box method I guess.

        • enigma48 on 29/03/2024 - 14:53

          You’ll need to specifically find a lifepo4 charger. If it’s a 30A charger, it’ll take 3-4 hours at least to charge the 100A battery. They usually cost at least a couple hundred for decent chargers.

          • bcYield on 29/03/2024 - 16:19

            @enigma48: Maybe get a 10A power supply at ~$100 and charge overnight? I'd also get a smart plug / timer to set it off says after 10 hrs.

            Come across this 20A one for only $110 but not sure if any good.

        • Bimbobob on 29/03/2024 - 21:10
          +1

          What you want is figure out your potential usage. Ideally you want to have the capacity to recharge it in around 4-5hrs(average peak sun hours).

  • Price Jack on 29/03/2024 - 13:38
    +3

    Unfortunately with batteries, you get what you paid for.

    Maybe ok for occasional use. Not something I'd rely on.
    ….waiting for the negs for facts….

    • Look Up on 29/03/2024 - 15:34

      +1

      Use this to power some lights or light appliances at a camp site

      Using it in an enclosed area for 24/7 loads = a "thermal runaway event" waiting to happen

      • jaimex2 on 29/03/2024 - 15:46
        +4

        You're thinking Lithium Ion batteries.

        • Look Up on 29/03/2024 - 16:03
          +2

          You're thinking thermal runaway = ball of fire

          https://youtu.be/07BS6QY3wI8&t=130

          Enjoy those gases venting into your house/caravan/trailer if this battery ever fails

          Stacking a set of soft-walled pouch cells tightly together in a box means any expansion in one pouch physically transfers to the rest

          Cylindrical > prismatic > pouch

          • FLICKIT on 29/03/2024 - 16:27
            +1

            @Look Up:

            gases venting into your house/caravan/trailer if this battery ever fails

            The new caravan/camparvan standards that came in last year have tried to address this issue, batteries cant be mounted inside now unless they're in a sealed enclosure vented to the outside, blah blah..

          • Igaf on 29/03/2024 - 16:33
            +3

            @Look Up: Seriousy stupid video. If you damage cylindrical or prismatic cells you could also have a fire.

            There are tens of thousands - likely an order of magnitude more - 12v LFP batteries in use around the world, many of them with pouch cells. In home systems, vehicles, boats, camping setups…..

            Tesla uses/used pouch cells in its cars.

    • Bimbobob on 29/03/2024 - 21:11

      Plenty of issues with DCS batteries under delivering long term.

  • Headless on 29/03/2024 - 13:39
    +3

    This is a steal of a price for lithium iron phospate, and fyi, dont need ebay plus, i bought one using a guest account

    • King Tightarse on 29/03/2024 - 13:40

      With free shipping? Will amend the title if yes

      • Headless on 29/03/2024 - 13:40
        +1

        Yes, $251 it charged me with free shipping

  • Mr-AB on 29/03/2024 - 13:47
    +7

    Ebay plus with TOPMAR24 code gets it down to $236.29.

    Cant comment on the quality though

  • bansharkfin on 29/03/2024 - 14:06

    Bargain thanks OP

  • CoenJC on 29/03/2024 - 14:14

    What is a good wall charger for this? Any that would charge two at a time?

  • swampson on 29/03/2024 - 15:02
    +1

    i was just starting my research in to this area of batteries other day - first thing i saw was this VoltX (yes i know, i know .. its' from Aldi….)
    https://www.aldi.com.au/saturday-detail-wk11/ps/p/100ah-lith…
    It seems similar specs? albeit prob just limited info provided by Aldi …. so much more expensive tho.

    • Bogan65inchTV on 01/04/2024 - 17:52

      Yeah, I have noticed them in my local ALDI store a few times now, and they appear to be a much better deal than other places.
      And you can be quite sure you are getting what is claimed via ALDI.
      I just wish they would include the inside cell configuration information. For example, some premium LiFePO4 12volt packs have 16 cylindrical Tesla-style 4680/21700 cells (or larger) connected together in 4Sx4P configuration. Tesla vehicles will have around cylindrical 7000 individual cells, the reason they do this is it greatly helps dissipate heat from each individual cell making the whole battery pack last longer. Heat is what shortens the cells life, just like everything else in electronics.
      https://www.batterydesign.net/battery-cell/formats/cylindric…
      https://www.evlithium.com/Blog/4680-battery-power-innovation…
      https://www.evlithium.com/LiFePO4-Battery/byd-15ah-lifepo4-4…
      But for these 12 LifePO4 packs, always assume they are just 4 pouch/prismatic cells which are the cheapest to produce, unless they spec otherwise.

  • andyy888 on 29/03/2024 - 15:13
    +2

    I got one those battery but find out only has about 50ah (mine only) there is some youtube video who review them

    • Robc on 29/03/2024 - 15:17

      This is the issue hey? Chinese numbers are meaningless.

    • King Tightarse on 29/03/2024 - 15:21

      Are you talking about the aldi one?

      • andyy888 on 29/03/2024 - 15:37

        those ebay one I suggest anyone buy is use some thing to test it
        I got the same result from this video
        https://www.youtube.com/watch?v=rphmv6wMQbk

        • andyy888 on 29/03/2024 - 15:40

          i think in summary u need to charge 75ah then only 50 ish ah to use

          It doesn't suit my need for the price that all

        • King Tightarse on 29/03/2024 - 15:41

          Oh I see, that's not this one or the aldi one, just a cheap ebay no namer.
          Gentrax should be better (should be)

  • ocular on 29/03/2024 - 15:13

    Any power supply with precise constant voltage of 14.0V that has some sort of current limiting built in so the power supply works below it's output rating. Once current falls to less than 100mA then charging complete.
    Some of 12V LiFePO4 chargers, DC/DC chargers have inappropriate charging profiles that push voltage about 14.0V.

  • hotdoc on 29/03/2024 - 15:19

    any recommedation for the nverter/charger for it?

  • King Tightarse on 29/03/2024 - 15:24

    This inverter got recommended by ozhunter68 last time around
    https://www.ebay.com.au/itm/231544077381?epid=28034148026

    • jaimex2 on 29/03/2024 - 15:48
      +2

      I can't recommend it, I burnt mine out on light loads in under a year ( laptop charger ) and I'm pretty sceptical about its claim of being pure sine wave.

      • King Tightarse on 29/03/2024 - 15:52

        4,860 sold, 99.2% positive. You might have got unlucky. Did you contact the company? Thanks for sharing BTW

      • bamzero on 29/03/2024 - 21:31
        +1

        I can only comment on my single purchase of the 600W one but it has been fine since 2020.

        Biggest load I've used it with for any period of time (apart from testing) is only about 250W though, last power outage we had I ran my fridge on my Outbax li-ion through the Giandel (fridge has an inverter compressor and draws very little power, like a camping fridge. DC-AC-DC 😄 Biggest draw was the defrost heater element)

        I read that their customer service is decent though.

  • 41bid on 29/03/2024 - 16:15

    Thanks. Grabbed one for my little caravan.

  • tryonthis on 29/03/2024 - 16:27

    Are these pretty much identical to the Kings LiFePO4 lithium batteries?

    Can anyone recommend a battery box to go with the battery?

    • pingMarky on 29/03/2024 - 18:14
      +1

      Depends on what you're needing (dcdc charging, outlets, inputs etc)
      A basic one from Anaconda would be fine for very simple setup and expand as needed.
      https://www.anacondastores.com/camping-hiking/power-solar/ba…
      But I like the construction of the Hardkorr boxes.
      https://www.snowys.com.au/heavy-duty-battery-box

    • Igaf on 29/03/2024 - 18:52

      Are these pretty much identical to the Kings LiFePO4 lithium batteries?

      Too many variable to say. Unless you've seen them opened up on video then there's no way of knowing the build quality, the cells, or the important BMS. Youmight get a fair idea by comparing specs. At this price the warranty and seller rep is important. I didn't see any cycle "guarantee" (eg 2000 cycles @ 100% DoD - Kings), which is important info, and gives you a good starting point for statutory warranty.

  • cerealJay on 29/03/2024 - 17:30
    +1

    You'd think they would mention the weight of this battery in the specs, but nah… they couldn't be bothered or don't want to say because they too busy making a huge page about how bad the competition is.

    • King Tightarse on 29/03/2024 - 17:33

      ~10kg :)

      • cerealJay on 29/03/2024 - 17:45

        Only 10kg? Hard to believe for a 100Ah battery.

        AGM deep cycle 100Ah batteries are more than 25kg. LiFePO4 is obviously lighter but I didn't know it was that much lighter. If true, that's great.

  • maxwellish on 29/03/2024 - 17:54
    +1

    $236 for a 100ah lithium.. idgaf if it isnt that flash.. bought!

    • bamzero on 29/03/2024 - 21:13
      +2

      I bought their previous model, stated at 110Ah I was able to draw 120Ah before BMS shut it down. Those were 50A peak though but still good enough at that price to keep the fridge and a few other things running while camping.

  • naruto128 on 29/03/2024 - 19:39

    OOS

  • serpserpserp on 30/03/2024 - 08:16

    How many Kwh does this thing store?

    • FLICKIT on 30/03/2024 - 08:39

      1.2

  • Scallyswag on 31/03/2024 - 09:11
    +1

    I was researching on how to make my own power station with lithium prismatic or cylindrical cells bought from aliexpress for a cheap DIY but this deal blows all that out of the water. nice. Now to find a good battery box for it. Thinking the voltx or the dune 4wd from anaconda, anyone have experience with these? I'll be charging it from solar blanket (350w) am just concerned with heat and air flow.

  • tjea on 01/04/2024 - 13:51

    whats a cheap but decent battery box, and a cheap charger for this one? (wall charger)

    im literally going to this for some lights and charging a phone or two for camping 2-3 times a year and that's it.

    • tjea on 01/04/2024 - 15:14

      https://www.ebay.com.au/itm/334785151687

      i was thinking of something like this for the inverter wouldn't need more then 200ws anyone with experience please do tell

    • Igaf on 01/04/2024 - 20:34

      Any particular reason you want a 100Ah LFP, battery box and inverter for camping lights and phone? Inverters are unnecessary (there should be connectors for 12v lights and charging phones on your box), inefficient, and potentially dangerous so I'd give that the flick even if you opt for a battery and box. You will also need a battery charger with a lithium profile so all up you're in for $400+.

      There are many powerbank options for phone charging and a range of torches/lanterns for lights. For example, this Sofirn LT1 Lantern - about $A96 delivered - is both a light source and a powerbank. It can also be charged from a quality portable powerbank, or 240v.

      • tjea on 02/04/2024 - 05:52

        I appreciate your reply, the main reason is running a couple of high quality 2-5m led strips/wall connection lights that don't have cig lighter connections/USB, or charging a big Bluetooth speaker that also has mains connection

        I have some power banks I use for charging phones etc already so that's not really an issue, do you have any budget lithium battery chargers you recommend? Also what potential risks do you think there is with the 200w invertor I linked above? And how inefficient do you think that could be?

        Thanks!

        • tjea on 02/04/2024 - 15:15

          ended up buying this
          https://www.ebay.com.au/itm/285099808537 for the charger, and got a kings battery box second hand but brand new for 20$ on marketplace

          • FLICKIT on 02/04/2024 - 15:20
            +1

            @tjea: I have the 15amp version, good charger but it gets damn hot on the bottom, hot enough that I'm careful to always sit it on a hard surface so air can flow under it and such, I wouldn't sit it on a car seat, carpet, or the likes….

            It's very unlikely the 5 amp version would get hot like the 15A does, but be mindful of it…

          • Igaf on 02/04/2024 - 16:48
            +1

            @tjea: I have the same 15A version. Haven't noticed heat while charging, will check it next time.

            Your 5A charger will take about 20hrs (probably a bit longer) to charge a depleted 100Ah LFP, ~16hrs if you're able to keep to 80% "rule"

            • tjea on 02/04/2024 - 18:52

              @Igaf: i thought the 5A would be fine for my personal use and ive heard it might be better on the battery long term to charge it slower? with the inverter i linked above what potential risks do you think there is with it? And how inefficient do you think that could be?
              (200w click one)

              • Igaf on 02/04/2024 - 21:28
                +1

                @tjea: Inverters, esp those which don't conform to standards, are potentially dangerous. Questions to ask include - is the device protected, does it have an RCD, does it conform to AS/NZS 4777.2:2020.

                Like powerbanks, all 12/240V inverters are inefficient in that they consume power. The efficiency could be as low as 75% for cheap stuff and as high as 95% for (some) pure sine wave devices. Don't know what the power usage of your bluetooth speaker is but given your other needs I doubt inverter efficiency will be an issue if you have a 100Ah LFP battery.

                Lithium Ion batteries will typically last longer if slow charged but LiFePo4 (LFP) 12V batteries are different chemistry and are commonly charged at between 0.3-1C, ie 30-100% of the battery capacity. So a 30A charger would have been fine (although expensive). 5A just means a much slower job.

                • tjea on 03/04/2024 - 08:07
                  +1

                  @Igaf: Really appreciate the reply, thanks for taking the time to answer the questions!

  • diguinBR on 05/04/2024 - 21:13
    +1

    starting my fridge setup with this. hopefully it is ok.

  • meatgasm on 06/04/2024 - 20:35
    +5

    Write-up of some testing conducted on this battery:

    https://www.ozbargain.com.au/node/839968

    TL;DR, its just above 100Ah

    • King Tightarse on 06/04/2024 - 20:37
      +1

      hey nice job - thanks!

    • crankyjay on 06/04/2024 - 21:30
      +2

      I bought 2 of these and just finished testing 1 of them, can also confirm just over 100Ah capacity.

      Slightly different way of testing, with an aliexpress tester at constant current draw, after fully charging with a Victron charger.

      Recorded:

      Test cutoff set to 11.2v
      Energy 1375.6Wh
      Capacity 106Ah
      Timing 10hrs 36mins

      • crankyjay on 07/04/2024 - 11:07
        +1

        2nd one was not as good, tested at 102Ah with 11.2v cut off

    • Igaf on 07/04/2024 - 13:04
      +1

      10V cutout is far too low for good battery life.

      • meatgasm on 07/04/2024 - 17:31
        +1

        True, 10V is 2.5V/Cell which you shouldnt go below, but doing it once, to test them, and to inform others is worth the nearly negligible hit to battery longevity.

        • Igaf on 07/04/2024 - 18:26

          Reading your comment I assumed you were testing the BMS cutout, which is very useful info.

          10V is a trap for people new to the technology who don't regularly monitor DoD.

          Quite a few cheapies have 10V in the specs although I suspect those specs are often just copies of other batteries. Looking at Will Prowse videos leads me to think they probaby have the same cheap BMS and build quality.

  • No Child Support on 08/04/2024 - 10:25
    +2

    Damn, jumped on this deal only to realize a decent charger costs half the price of the battery, not to mention the battery box, solar blanket and MPPT if i want to go down that route.

    • ozhunter68 on 10/04/2024 - 22:17
      +1

      This brand is decent and good value, 4 Amps is not the quickest around but will charge from 50 % to full overnight.

      It's currently $51 with 15 % off voucher at Amazon.

      https://www.amazon.com.au/ATEM-POWER-Applicable-Rechargeable…

      Just get a cheap $50 battery box and later can get a low cost lithium capable solar controller, unless you get a dc-dc charger which would have that build in already. No need to get expensive parts, all you need can be had for under $200 unless you want a bigger more expensive solar panel.

      • Igaf on 11/04/2024 - 09:29
        +1

        Acording to the specs that charger will only deliver 2A for 12V LFPs: 12VLFP Charging Program:14.6V DC/2A , so VERY slow charging.

        • ozhunter68 on 28/04/2024 - 07:33

          Thanks for that, did not look at detailed info. The devils in the detail. 2 Amp definately too slow for

          most applications. I have a Gooloo S6 charger that works well.

    • ozhunter68 on 29/04/2024 - 21:38

      This looks ok for price. They have many other models most well below $60 delivered.

      https://htrc-direct.com/products/10-amp-car-battery-charger-…

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