This was posted 1 year 4 months 2 days ago, and might be an out-dated deal.

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TOPDON BT100 Digital Battery Analyzer 12V 100-2000CCA $37.90 ($37.01 eBay Plus) Delivered @ Easydiag.deal eBay

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TOPDON BT100 Digital Battery Analyzer 12V 100-2000CCA $37.90 ($37.01 eBay Plus) Delivered @ Easydiag.deal eBay
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HanaLF on 06/07/2023 - 20:11 ebay.com.au (450 clicks)
Last edited 06/07/2023 - 20:22 by 1 other user
JULYY15JULYY17

not the lowest but still a good price for a 12V Batteries tester.

TOPDON BT100 automotive battery tester works on all automotive 12 Volt batteries of 100 to 2000 CCA, such as regular flooded, AGM flat plate, AGM spiral, GEL, and deep cycle batteries for vehicles, SUVs, motorcycles, light trucks, boats, and more. Based on battery rating standards - CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, and GB.

it's an upgrade version of TOPDON BT50 with better quality and accuracy (according to the seller)

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Automotive 12V Battery Tester TOPDON

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closed Comments

  • spy on 06/07/2023 - 20:14

    Got it for $20 from ebay sales. Yet to use

    • HanaLF on 06/07/2023 - 20:32

      missed the deal last year. But checked with the seller they are different models

  • shoppe on 06/07/2023 - 23:13

    Most auto stores will test your battery for free.

    The only problem is that you must take your battery to them to test. That's not easy if your car doesn't start.

    • LowRange on 07/07/2023 - 00:04
      +6

      I done the opposite and took my battery tester in to Autobarn only a month ago when i was buying a new battery. I was able to test the batteries and pick out the battery with the best health stats. Beats buying one that's been sitting around forever with average health when spending $300.

      • Rakddon on 07/07/2023 - 09:32
        +1

        I've done that as well, staff were more than happy.

      • Series4Episode10 on 07/07/2023 - 10:10
        -1

        How did you test all those batteries CCA' without installing each into your car and cranking the thing, or do you have a magical device that can create the same load as your starter does while it's cold cranking your motor?

        • LowRange on 07/07/2023 - 20:06

          What are you talking about "magical device" nonsense? It's literally a feature of the battery tester, you just select "out of vehicle" on the tester.

          • Series4Episode10 on 15/07/2023 - 10:31

            @LowRange: Have one since 2018 and work as maintenance on a rural property, without a load these things have a guess, they use an algorithm to draw a load and calculate CCA with the input from you … not the same load as a starter starting a cold motor from a cold sitting for some time battery … it's not reliable! to be reliable it would need to draw those same amps as the starter in a cold situation would draw from it's attached battery! this would necessitate creating a load, a big load for a small device, it would require some extra stuff, probably some fans and a big heatsink … the magical device I mention! … got one?

            Simples!

            And cold cranking a motor while using a battery tester to calculate the condition and bounce back of a battery is the only reliable way …. 100% the only way!

            Having worked for many yrs as the off-sider of a fridgey/sparkey I've had these conversations with him, go argue with him!

            Prove me wrong!

          • Nom on 15/07/2023 - 14:03

            @LowRange:

            It's literally a feature of the battery tester, you just select "out of vehicle" on the tester.

            Because the only way to test the battery under load is to put it under load - by turning an engine or similar. These kinds of devices have to do some guesswork - it's better than nothing, but just because it says your load test is ok, doesn't necessarily mean it is…

    • Series4Episode10 on 07/07/2023 - 10:03

      Everyone should have one of those lithium battery powered jump starters, one of the good ones comes up on Amazon for about 100bucks regular, bought one about 3 yrs ago, saved my ass … and some other ppls asses heaps since and still going, the lead acid powered type die like barely out of warranty and weigh a stack!

  • rusteh on 07/07/2023 - 07:22

    I'm not familiar with these. Is the premise that it can simulate cranking load to get a proper idea of cranking voltage, as opposed to just using a multimeter which can't?

    • Series4Episode10 on 07/07/2023 - 10:00
      -2

      They read the CCA while the battery is under load, so while you are starting the car, many examples of how they work on youtube.

      • rusteh on 07/07/2023 - 12:30

        The website indicates you can test a battery while out of a car. Which would be useful. Just not sure how that would work?

        • Series4Episode10 on 08/07/2023 - 15:01

          From watching mechanics on Youtube, it doesn't, it guesses and is wildly wrong, at least as far as cold cranking amps go.

    • josem on 07/07/2023 - 10:00

      That's what I thought too. You need to test while cranking the engine to properly test the load capacity otherwise you are just testing the voltage.

    • tooch83 on 07/07/2023 - 16:09
      +1

      The modern testers don't do a simulated load test as such. They pass AC through the battery and measure the resistance of the battery internals. It then compares the results with what is expected of a particular type of battery (which you input before it does the test). It then gives you a pass/fail result. They are quite accurate when used properly. As a battery gets old and starts to go, the internal resistance increases and so that is what these things test.

  • kevinroast on 07/07/2023 - 07:25

    Or keep an eye out for a decent battery charger on sale and put the money towards that? The SCA ones are ok at 50% off.

    • Series4Episode10 on 07/07/2023 - 10:04

      And a charger will measure the CCA how?

      • Nom on 08/07/2023 - 19:08

        It won't - instead it will charge your battery so you can actually use it.

        Measuring the battery isn't very useful, because if the results are bad you need to charge it or replace it. This device doesn't do either 😁

  • Series4Episode10 on 07/07/2023 - 10:18

    For those unfamiliar with a bat tester

    https://www.youtube.com/watch?v=xxSAc5NrKGE

  • lexis999 on 07/07/2023 - 10:41

    I bought this last time it was on Ozbargain, Iv used it heaps and happy with it.

  • Krayzii on 07/07/2023 - 10:50

    I got this on the last sale, it's a great tool. I originally thought the same - bring the tester to the shop to see which battery had the best stats, but highly unlikely that you get to perform those 3 tests (cranking). Probably just referring to the health stats when you connect positive/negative

    • LowRange on 07/07/2023 - 20:08

      It can test the CCA without the battery in the car.

      • Series4Episode10 on 13/07/2023 - 09:11

        Not reliable, it guesses and is mostly wrong!

        • LowRange on 13/07/2023 - 19:01

          It guesses… lol what? It does an actual test and calculates the CCA. It's repeatable and powering the unit down and re-testing the same battery will give the same result within a very close +/- accuracy margin.

          Testing 5 identical batteries in the shop will absolutely show which battery has the best metrics, you are doing an apples to apples comparison. It will also tell you if a battery has degraded and not performing as per specs. This is absolutely good enough for home use. If you want commercial or lab quality testing, go pay hundreds or thousands of dollars for a better device.

          • Series4Episode10 on 15/07/2023 - 09:49

            @LowRange: Haa haaa dood, go look at people testing them on youtube!

            Might tell you things when not under load and testing, will surely tell the difference between new same model and brand batteries and which might have best values … … but it won't be accurate!

            WTF do they bother testing under load? … because it's the only reliable test, NO ONE would bother testing under load if it could reliable test without load … WAKE UP?!

            Accuracy is gained by testing under load, there is no other way! unless you have a device to simulate the load of a starter, that thing would draw the same current as a starter driving a vehicle motor … and I doubt they'd allow that on their floor stock!

            You are arguing with someone who has owned a battery tester since 2018 and works as maintenance of a rural property … you are wrong!

            https://www.autotest.net.au/challenges-of-car-battery-testin…

            • LowRange on 16/07/2023 - 14:53

              @Series4Episode10:

              will surely tell the difference between new same model and brand batteries and which might have best values

              Yep that's exactly what I said.

              You are arguing with someone who has owned a battery tester since 2018 and works as maintenance of a rural property … you are wrong!

              Mate not trying to do a weird flex, I don't do maintenance on a rural property I own a rural property.

              I have a diesel 4wd with winch and all electrics i installed, 6L VE Redline, a carby VK 355 stroker, a 4cyl turbo, 6 meter cruise craft offshore boat with twin batteries, a Quintrex river boat, a diesel John Deere, 12v tow weed sprayer, quadrunner, few buggies, a camper with lithium, solar and full Renogy dcdc/solar/bt battery reporting I installed myself. I have a hoist in the shed work on everything myself.

              I've owned a battery tester long before 2018, I have about 4 battery chargers, 3 Gooloo jumpers and probably 10 batteries sitting on the shed floor

              I've never had my battery tester tell me a battery is good when it's bad, or say it's bad when it's good. I simply said I took it when buying a battery for the 4wd the other week and done a comparison of a bunch of identical batteries and got the one with the best metrics.

              So get over yourself fella, again spend thousands on a commercial battery tester if you need that level of accuracy.

              • Series4Episode10 on 18/07/2023 - 13:20

                @LowRange: No, but the measurements between a guess and the actual test are NEVER the same!

                You don't get it!

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