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12V 100Ah LiFePO4 Lithium Iron Phosphate Battery $195.20 Delivered ($185 each for 2, $168 each for 3) @ Fab-Living eBay

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12V 100Ah LiFePO4 Lithium Iron Phosphate Battery $195.20 Delivered ($185 each for 2, $168 each for 3) @ Fab-Living eBay
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PTheNachoman180 on 25/10/2024 - 14:10 ebay.com.au (2575 clicks)
Last edited 25/10/2024 - 15:38 by 1 other user
OCTF20OFFOCTSNS

12V 100Ah Lithium Iron Phosphate Battery LiFePO4 Rechargeable Camping RV

These have pouch cells and are usually sold as 'Gentrax' brand. They arrive with Gentrax branding on the batteries and a Gentrax user manual. Comes with bolts for terminals in a secure package brand new with wrapping tape. I believe they're the exact same internally as the Adventure Kings 100Ah but have yet to see someone tear down those for comparison.

Here is a teardown of the Gentrax shown here. https://imgur.com/a/gentrax-100ah-06-2024-8lnWTqM

I have personally tested these in parallel (3 batteries) and pulled 315Ah. Meaning these are 105Ah each.

EDIT: If you need multiple, now's the time. I've just added 3 to cart for a $505 total. $168 each. This is an all time low price.

Electrical & Electronics 100Ah 12V Battery LiFePO4 Lithium Battery Rechargeable Battery

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closed Comments

  • mjr 009 on 25/10/2024 - 14:30

    Anyone used these in series to get 24v? Listing says it can't be, but wondering if this is more for disclaimer purposes..

    • 1st-Amendment on 25/10/2024 - 16:39

      Can't think of why not. Physics is physics and 12V + 12V = 24V, although there maybe some smarts built-in that prevent such behaviour?

      • Dinboy on 25/10/2024 - 17:08
        +3

        Yeah it’s when the battery management circuit tries to disconnect the battery the voltage the “switch” sees is 24v. It suggests it is not rated for that voltage so may fail to disconnect.

    • MikeKulls on 27/10/2024 - 09:19
      +2

      Definitely can't. The batteries get out of balance and lithium won't get back into balance without external circuitry. If you want 24v buy a 24v battery

      • ozhunter68 on 08/11/2024 - 09:40

        Or buy two 12 V LiPo4 batteries that are suitable for this purpose as many are.

        For some people's use one 24 V LiPo4 battery is best, but for various other reasons 2 x 12 V

        batteries has many advantages too.

  • 2stroksmokr on 25/10/2024 - 14:46
    +1

    What battery box is everyone getting? I'm doing a month away in December down south and wouldn't mind just having this as a spare one.

    • OzMike on 25/10/2024 - 15:21

      Also interested in this.

      • Dabbler68 on 25/10/2024 - 17:39
        +1

        That one is not high enough for this battery. Fits battery up to 185mm high. The battery is 215mm high.

    • Bikeham on 25/10/2024 - 16:36
      +2

      Keep in mind, these boxes look waterproof but they aren't.

    • webmonkey on 25/10/2024 - 18:44
      +1

      I paired a Kings battery box with this one on a recent camp trip and worked fine for the 5 days I was out. Running a fridge and charging phones.

      I kind of oversized a solar array and would have been fine with 100w.

      • ozhunter68 on 08/11/2024 - 09:43

        Worked out good that trip, but never enough solar when the thick clouds roll in especially on those hot humid

        times up North when the fridge/freezer is cycling hard and keep putting warm beers in lol.

    • lethalmoney on 25/10/2024 - 21:25
      +1

      i use a hardkor box

    • swordfish6975 on 26/10/2024 - 08:17
      +3

      https://www.ebay.com.au/itm/155163428712?mkcid=16&mkevt=1&mk…

      Kinda exactly like the hardkor but without the price tag, managed to fit a victron 100/20 solar charge controller and a Bluetooth shunt inside it. Just got back from a week camping and it handled it fine.

      200w ~ 300w solar would be fine to run my 60L brass monkey fridge and do everything we need.

      At 12v the most the 100/20 can charge is 281w if you plan on putting like 400w of solar the 100/30 might be the go however it may not physically fit inside the box.

      Edit: I have this exact battery from a previous deal, the deepest discharge during the camping was still above 55% SOC (we also had a small power hungry 15L fridge that we plan to return (totally broken))

      Drawdown overnight with just the 60L was above 80%

      • lethalmoney on 26/10/2024 - 09:10

        yeah, good pickup - just missing some stickers.
        I paid 160 for my hardkorr, had a rare promo during covid.
        dont bother with the hardkorr batery monitor. absolute junk. the cheap bluetooth ones are meant to perform well.

        https://www.ultimate9.co/au/ultimate9-bluetooth-lithium-batt…

        • ozhunter68 on 08/11/2024 - 09:58

          No shunt, pretty much voltage only. A battery monitor with shunt gives you sooo

          much more info. Just get the popular Renogy 500A Battaery Monitor without bluetooth,

          much more handy having a big easy to read backlit screen on the unit. Just my preferance.

          • lethalmoney on 08/11/2024 - 10:04
            +1

            @ozhunter68: The shunt system i had constantly dropped to 0% charge, despite it not being the case.

            Just found it annoying.

            • ozhunter68 on 08/11/2024 - 10:25
              +1

              @lethalmoney: Fair enough. Not sure on your usage and set up, but people have different preferences and needs.

              I was challed by my Batteryand Renogy Battery Monitor with shunt as I did not realise after constant

              part charging and discharging they advize to re-calibrate the system by a full charge and reset every

              month or so. I found out the hard way going to bed in camper with fridge running 24/7 on a hot night

              with capacity showing 50% (out of a 100Ah capacity) and waking up to the fridge being off and

              lithium battery turned off/flat. Now I have a different system in other camper, 3 x 100Ah lithium

              batteries with bluetooth, as well as a Renogy 500Amp shunt Battery Monitor, and that is now Too

              Much conflicting info mainly comming from the various 3 batteries lol.

      • ozhunter68 on 08/11/2024 - 09:59

        Good battery box rebranded by various brands, for me the $40 postage kills the deal though to SEQ.

    • Buy2Much on 27/10/2024 - 13:51

      https://www.ebay.com.au/itm/155543907407
      Stack OCTJ20OFF and PNAX codes for $58.87 delivered.

      • ozhunter68 on 08/11/2024 - 09:56

        Pretty sure that is too low in hight (got similar). It will fit but need to push wires down bit too hard to close,

        but can be done for this battery.

  • Daniel Harris on 25/10/2024 - 15:07
    +4

    $145.20 with code OCTF20OFF according to ebay when I clicked on it.

    That's a crazy cheap price, even for cheap cells. Worth jumping on that I reckon. I really want 200ah, but at that price maybe I'll just get more and run them in parallel.

  • ldd-mn on 25/10/2024 - 15:13
    +2

    Great pictures on the listing

    • Dollar Dreamer on 25/10/2024 - 17:25
      +1

      I was actually following the story like a comic book.

      • Noob Noob on 26/10/2024 - 23:45
        +1

        The irony of selling an unbranded batteries and including a comic denouncing unbranded batteries.

        P.S. Apparently, these are 'Gentrax' branded, but the seller certainly doesn't say so on the listing.

  • TheNachoman180 on 25/10/2024 - 15:38
    +1

    If you need multiple, now's the time. I've just added 3 to cart for a $505 total. $168 each. This is an all time low price.

  • Tun on 25/10/2024 - 15:40
    +1

    I got AUD $175.20 delivered

    • Flyerone on 25/10/2024 - 15:54

      How so mate?

      • battler on 25/10/2024 - 15:59
        +2

        ebay plus code PLS250 stacks:

        Item price AU $219.00
        Postage AU $30.00
        Discounts -AU $43.80 OCTF20OFF
        Coupons -AU $30.00 PLS250
        Total AU $175.20
        You save: AU $73.80

        • Flyerone on 25/10/2024 - 16:05

          It told me. I do have plus.

          Looks like that's the wrong code. Please double-check and try again.

          • battler on 25/10/2024 - 16:07

            @Flyerone: PLS250 is from a previous deal - spend $250 on ebay in Sept and get a $30 voucher

        • dna level c on 25/10/2024 - 16:06
          +1

          PLS250 gives me the following error "Looks like that's the wrong code. Please double-check and try again."

      • Tun on 25/10/2024 - 16:07

        Thanks for Battler for the reply

  • kungfuman on 25/10/2024 - 15:47

    can you get the 16v ones? for teslas?

    • FujinShu on 25/10/2024 - 15:56

      You can just hook them up in series to 24V, then use a step-down converter to step the voltage down to 16V, if that helps.

      • eddyah on 26/10/2024 - 07:56
        -2

        Everyone stepping up in life except this guy.

    • LukeSmith on 26/10/2024 - 09:09

      what do you mean? to replace the 12v battery? Don't its not worth the drama and its not that simple.

      If its for a battery for a fridge, then any DC/DC charger will deal with the 16v input and charge a 12v li battery.

  • stumo on 25/10/2024 - 15:55

    Soon they will be paying us to take them.

  • dna level c on 25/10/2024 - 15:59
    +1

    I'm still getting slugged with $30 delivery, even though I have eBay Plus, making my total $195.20

    What is everyone else experiencing?

    • OzMike on 25/10/2024 - 16:03
      +1

      same here. with ebay plus.

    • Flyerone on 25/10/2024 - 16:11
      +4

      So you mean exactly the deal that was posted?

      • dna level c on 25/10/2024 - 16:11

        Correct.

        • eug on 27/10/2024 - 16:00

          You seem surprised that the price listed in the deal is the price you got. What were you expecting?

  • dna level c on 25/10/2024 - 16:11

    Best I can get right now is $195.20 — even with eBay Plus, and living in a metro area.

    $219.00, battery
    $30.00, postage
    -$43.80, OCTF20OFF
    -$10.00, OCTSNS

    $195.20, total

  • sybrix on 25/10/2024 - 16:12

    Same

  • nige0090 on 25/10/2024 - 16:15

    Can I get an adapter to connect this to my Brass Monkey freezer to keep it going when the vehicle 12v supply is off?

    • dna level c on 25/10/2024 - 16:19

      Battery box is what you're looking for, someone linked this one earlier in this post:

      https://itechworld.com.au/products/itechworld-maxi-battery-b…

      • Dabbler68 on 25/10/2024 - 17:42
        +2

        That one won't fit. It is not high enough for this battery. Fits battery up to 185mm high. The battery is 215mm high.

      • tetsuma on 25/10/2024 - 18:04

        I don't think this would achieve that,as there's no relay to block current from the car's battery. You'd need a battery isolator relay between the positive going from the engine's battery to this box.

    • TheNachoman180 on 25/10/2024 - 16:36
      +1

      Yeah just get an 8mm eyelet to cig or anderson adapter and plug the cable right in

      • plague69 on 25/10/2024 - 17:41

        Can these be used in series?

    • Ulysses31 on 25/10/2024 - 19:42
      +2

      Depends how ghetto you want to go. I started with this

      https://www.repco.com.au/globes-batteries-electrical/electri…

    • MikeKulls on 27/10/2024 - 09:21

      This will run the fridge. You then need a DC DC charger to charge it. Eg a victron

  • Roe Jogan on 25/10/2024 - 16:17

    is this a car battery

    • dna level c on 25/10/2024 - 16:19

      No

    • ATTS on 25/10/2024 - 18:19

      Curious what is it used for?

      • raybies on 25/10/2024 - 23:10
        +2

        People buy them to run loads off grid.
        4 x this + 48V MPPT + 48V Inverter + PV panels = off-grid power.
        Run your pool, pumps, hot tub, beer fridges for *10yrs for free.

        If you get a microinverter that syncs with the grid you can also feed your mains circuit.

        • ATTS on 26/10/2024 - 20:54

          Thanks. Just curious how many kw is these comparable to?

          • raybies on 26/10/2024 - 21:49

            @ATTS: Wh=12V×100Ah=1.2kWh or 4 of these batteries; 48x100=4.8kWh… the EcoFlow Delta Pro 3 has 4kWh.

            Fyi EcoFlow is the Lexus of Power Generators, they don't hide specs and lie like Bluetti.

            You can make your own, but choose the MPPT and Inverter wisely, most inverter specs. are complete BS and way worse than Bluetti lies.

            • ATTS on 27/10/2024 - 14:23

              @raybies: Thanks for detailed reply!

  • dna level c on 25/10/2024 - 16:21
    +1

    I'll pass on this and wait until Black Friday, if I could have gotten the magical prices (e.g. $175, $145) described by some I would have pulled the trigger.

    • Flyerone on 25/10/2024 - 16:26
      +1

      The people getting those prices are getting them because they got vouchers for buying a bunch of other stuff on ebay.

    • Buy2Much on 25/10/2024 - 19:55
      +1

      Most likely $145 before $30 shipping was added at check out.

  • jungle on 25/10/2024 - 16:22
    +5

    Well, that's like a 1.2kwh battery? So, if I buy 12 and connect them together, it will provide 14.4kwh capacity? Tesla Powerwall 3 has a capicity of 13.5kwh and it costs $10K+.

    An inverter should only cost something like $1.5K.

    • Flyerone on 25/10/2024 - 16:27

      Good luck with that.

    • Unrvl on 25/10/2024 - 16:38
      +3

      a powerwall 13.5kw aint worth 10k+

      make your own ghetto setup for about 3k. make your own PROPER/SAFE setup for about 5k.

      • derdew on 25/10/2024 - 19:01
        +1

        how?

        • killingtime on 25/10/2024 - 20:24
          -4

          if you have to ask you can't do it proper/safe

        • beach bum on 26/10/2024 - 00:03

          Hire an electrician/solar/wind/battery/inverter/12v technician or even an autoleky might have more experience with 12v set ups.
          A refrigeration mechanic from the bush may be very experienced with this kind of thing also.

          This actually sounds like a great life hack , there are plenty of forums and people who will guide you through setting up this kind of thing . In the last post for these batteries a couple days back there was someone offering to design a setup. Wouldn’t be too hard to find some old hippie with a bit of time on there hands that will probably come over and build it for you if you feed them and roll their doobies.

          • Pussqunt on 26/10/2024 - 06:28

            @beach bum: Except if you're not using a sparky and wiring this to a building, and something goes wrong, many insurance policies will drop you like a lead ballon.

      • entropysbane on 26/10/2024 - 01:26

        Insurance company might take askance of a kludge set up if the worst happens.

        • beach bum on 26/10/2024 - 04:00

          An electrician might be the go then ,
          at least to approve the design and do a final inspection .
          I don’t think a 12v battery setup is all that complex ,
          If you have solar and an inverter already you would be half way there .
          You may need a new inverter that integrates a house battery.
          I’ve seen people replace their inverter that died.
          I would just beware anyone who comes in and just wants to rip out everything and start again, because it’s ten or fifteen years old and that’s nearing its 25 year lifespan.
          You don’t have to integrate it with the grid necessarily either i believe, but I suppose that’s why they design these things to suit every individual situations needs.

          • Unrvl on 26/10/2024 - 14:42
            +1

            @beach bum: also generally it would be building a 48v battery, then having those 48v to 240v inverters. id only recommend this DIY approach if you are storing the batteries not too close to the house (in case of fire) AND are not trying to integrate with the grid.

  • No Child Support on 25/10/2024 - 16:25

    Does anyone know what the discharge cut-off voltage and the discharge recovery voltage of this battery? Bought this from a previous deal and need to set up my PWM profile but can't find the specs anywhere

    • TheNachoman180 on 25/10/2024 - 16:39
      +4

      Discharge cutoff is 10v. I got mine down to 10.2v with a 25a load, shut it off there and 2hrs later its up at 11.55v if that helps.

  • R4 on 25/10/2024 - 16:27
    +2

    If you're in Perth, the annual 4x4 show is in a few weeks and there's usually some good deals to be had. A good tip is to be there a few hours before it closes on the Sunday as there can be some fantastic discounts as the retailers don't want to cart a lot of the heavier stuff back to their premises. Black Friday is also in just over a month.

  • Akaiready on 25/10/2024 - 16:27

    Does anyone know what this is for? Dor example, can i keep it in the boot to charge an ev?

    • 1st-Amendment on 25/10/2024 - 16:45
      +3

      Does anyone know what this is for?

      Camping.

      • Dabbler68 on 25/10/2024 - 18:28
        +2

        Typically also used in motorhomes and caravans for running 12v lights etc. Also good to run an electric outboard.

        Not good for starting a car because they are designed for slow release of stored power and not the brief high current use needed to start a car. Similarly a starting battery does a poor job as a storage battery.

    • OzzyOzbourne on 25/10/2024 - 22:17
      +1

      It is used to store energy.

      Yes, you should be able to trickle charge your ev, though ideally you'd want at least 2 in parallel or series as one will provide only 1.2kw max. Add an ac inverter and plug in the trickle charger. One battery will add about 2% charge to a typical ev, so you'd need about 50 for a full charge.

  • mrXO on 25/10/2024 - 16:32

    Anyone has this set up in a battery box for home use?

    • OzzyOzbourne on 25/10/2024 - 22:18

      Sorry can't help. I have 4 and they're not in a box, although they are for home use

  • Flyerone on 25/10/2024 - 16:42
    +1

    Thanks OP picked up 2 for $360.

  • laser on 25/10/2024 - 17:22
    +1

    What charger do I need? Can I use AGM charger? I have https://www.ctek.com/au/battery-chargers-12v-24v/vehicle-typ…

      • Scrobo on 25/10/2024 - 19:00

        So another $200 for a charger?

        • Flyerone on 25/10/2024 - 20:18

          You need one which will charge LifePo batteries, a standard lead acid or AGM charger won't do it. The one linked above or this Victron are a decent choice.
          https://www.ebay.com.au/itm/264414888799

        • ozhunter68 on 08/11/2024 - 10:12

          Both the linked chargers are good, but I have an expensive lithium capable charger and a cheaper

          one, they both work well. As long as the charger has a profile for LiPo4 charging, pick the right

          Amp size for your needs (usually 6Amps-10Amps is fine), and just get a cheap ebay/china

          one if on a tight budget.

  • Dollar Dreamer on 25/10/2024 - 17:26

    Can I use this to invent a small electric lake fishing boat?

    • Bertus on 25/10/2024 - 17:33
      +2

      Off course get a intex blow up boat and trolling motor

    • OzzyOzbourne on 25/10/2024 - 22:19

      No, that wouldn't be an invention

  • TheNachoman180 on 25/10/2024 - 17:59
    +4

    https://ibb.co/TBvk8Qn This is the craziest variant. $505.60 for 3 of these delivered. I paid $620 for my 3 delivered with the previous post I made and I thought that was an insane deal. I've pulled 4kw from 3 in parallel feeding a 3000w inverter. No issues pulling 330A. The bank tested at 320Ah.

  • Scrobo on 25/10/2024 - 18:44

    How does it compare to this one? https://www.ebay.com.au/itm/126657800891

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