The ZKE-Tech Battery Tester damages your battery? I make the safety check!

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  • Опубликовано: 13 сен 2024
  • I follow up on a viewer's concern about the #ZKE-Tech Battery Testers and the potential of damaging the batteries under certain conditions. The claim is that if the tester loses connection to the computer during testing, it just keeps charging or discharging without stopping at the set voltage.
    If this turns out to be true, it is a real #safety problem. So let's get into it and #test both battery testers for overcharge and overdischarge protection. We need to know for sure because these are the main battery testers, we are all using.
    All infos, product links and software downloads to the ZKE Tech battery testers EBC-A20 and EBC-A40L: off-grid-garag...
    Specs of both testers:
    ZKE-Tech EBC-A20 Charger and Tester:
    Test Voltage: 0-30V
    Test Current: 0.1-20A
    Charge Voltage: 0-18V
    Charge Current: 0.1-5A
    ZKE-Tech EBC-A40L Charger and Tester:
    Test and Charge Voltage: 0-5V
    Test and Charge Current: 0.1-40A
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Комментарии • 181

  • @dSquared0162
    @dSquared0162 Год назад +8

    I bought one of the 5A testers a year and a half ago after your first review Andy and it worked out great for me. No problems, so glad you've managed to confirm the safety factor. Thanks & keep up the good work!

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      They are good testers, even I fried one due to a faulty power supply.

    • @dSquared0162
      @dSquared0162 Год назад

      @@OffGridGarageAustralia An interesting test might be to plug that DC-DC inverter into the back of the A20 to see if you can use it to charge 48v - albeit at probably only 1A.

  • @awengirr
    @awengirr 10 дней назад +1

    Hi Andy. Be careful, this unit can only charge with max 35A. (If you charge with 40 it will fail at some point.) There is 35 max for charging in the users manual as well.

  • @fldutch
    @fldutch Год назад +13

    Maybe it's a firmware thingy? So a comparison of the firmware revision of the concerned viewer and yours could give a hint, where there might be a potential problem.

    • @gubbernl
      @gubbernl Год назад

      If the version is not displayed, maybe it's printed on a sticker, on one of the IC's.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +2

      The FW shows when the device starts up. I'll post mine later when I'm back home.

  • @garethtarter5095
    @garethtarter5095 Год назад +3

    Another big lesson from Andy!
    Thank you 😊

  • @jacopo.scarpellini
    @jacopo.scarpellini Год назад +3

    Why would there be a safety mechanism? This charger can charge up to 5V, it doesn’t know that the cell is a LiFePO4
    It’s more likely that it keeps in memory the constant voltage value and the cut off current and I think your video demonstrates just that
    Having said that, I once left it to test over night (fully charge, wait 30 minutes, discharge, recharge for a bit) and in the morning I found that it had stopped doing anything after the full charge. It still seemed to be connected to the pc though!

  • @offgridwithmarcusroenz
    @offgridwithmarcusroenz Год назад +2

    Danke für deinen Test! Großartig!

  • @kocki3
    @kocki3 Год назад +1

    Hi Andy, thanks for the test. Now I can test in peace knowing the EBC-A20 is safe.

  • @martinsteffens3400
    @martinsteffens3400 Год назад +1

    Hey Andy, please notice that there are a lot of guys with destroyed A40L. The problem is a longtime charging current with 40A. So ZKE Tech have revised her datasheet and recommends now an maximum charge current of only 35A!

  • @gumpster6
    @gumpster6 Год назад +1

    Good testing and nice to know those testers are safe.

  • @renees-music
    @renees-music Год назад +3

    Thanks for testing, Andy! I also own the A20 model and I'm glad to see that it safely shuts off. BTW: Which software versions do your testers run?
    Cheers, Renee

  • @supashark72
    @supashark72 Год назад +1

    Thanks for this Andy.
    Confirms my suspicion when my pc does a update and turns off during the night when testing 👍

    • @RobinRastle
      @RobinRastle 7 месяцев назад

      I disable my wifi link when doing something critical at night with the OH. M$ want to keep you on msg

  • @TheDigitalMermaid
    @TheDigitalMermaid Год назад +6

    It's been a while since proper cell testing has been done on youtube. Kinda looking forward to new/more tests. Particularly after PowerPaul posted on FB that a bunch of EVE LF280L cells he got for his Scout batteries fell short in capacity tests.

    • @PowerPaulAu
      @PowerPaulAu Год назад +1

      Yep testers like these are a great fallback to prove results. Even though they are basic, they are very repeatable so there's a lot of confidence in the results.
      The LF280K cells I got have been testing extremely reliably, albeit 3% low. So at least I can be confident in that and in the end the repeatability is more important than the ultimate capacity. variable results make me very concerned with things like this.

    • @TheDigitalMermaid
      @TheDigitalMermaid Год назад +4

      @@PowerPaulAu Aye, though I wonder if the sellers are seeing less testing of the raw cells and feeling like they can ship lower capacity cells confident that public testers won't be testing them anymore. Periodic tests will help keep sellers honest.

    • @PowerPaulAu
      @PowerPaulAu Год назад +1

      @@inmyimage1081 way off topic, please don't clog up Andy's channel with this sort of stuff.

    • @bildad1234
      @bildad1234 Год назад

      @@PowerPaulAu Been following you on FB, I suggested it maybe calendar aging
      What is the manufacture dates on the QR codes of the cells?

    • @typxxilps
      @typxxilps Год назад

      @@inmyimage1081 speculation based on whose experience ? The last eve shipment had been cells produced in November 2022 and if you pay the price you get what you paid, if not you might pay twice for non automotive grade cells. No complain so far cause 106% by average comopared to 101% for grade b from june 2022

  • @aglandorf75
    @aglandorf75 Год назад +1

    Just doing a capacity test with the 20A...so,glad it's safe. Thanks for testing.

  • @sammarch4314
    @sammarch4314 2 месяца назад

    I do like watching your videos about the battery testing machines and the issues that you have had in the past one note if you manage to fry the mosfet board it is not repairable because it damages the controller board and I not figured out how to repair them but you can modify it to monitor battery cells with any type of BMS protection boards but you have to provide a charger or discharge device just use the monitor function on the battery testing machine and once you have the battery voltage and current shown on the screen you can hit the start button but you do have to put in values like before but the battery testing machine is not controlling anything or you can just monitor the results either way
    I hope this helps anyone that wants to use it to monitor BMS protection boards but the battery testing machine does need to be modified for this to work correctly for this purpose

  • @davemcgowan2731
    @davemcgowan2731 Год назад +1

    Great news as I just ordered one last week !

  • @SkyNetworkSolutions
    @SkyNetworkSolutions Год назад +1

    Great test vid. It works similarly to the way printers communication with a pc via usb Thanks for the info.

  • @zaprodk
    @zaprodk Год назад +10

    Could be a firmware difference. Is there any way to read out firmware versions and compare?

    • @kocki3
      @kocki3 Год назад

      The firmware is shown in the display, when you switch on the tester, look at the beginning of Andys Video at 0:27. I have the same firmware version on my EBC-A20.

    • @robfre70
      @robfre70 Год назад

      @@kocki3 Is there a way to Update the Firmware? Wenn connected the firmware button is Grayed out.

    • @kocki3
      @kocki3 Год назад

      I don't know, my EBC-A20 came original with this version V.3.0.3 20-05-08. If you get any Infos for upgrading, please let me know this.

  • @amilww
    @amilww Год назад +1

    Awesome Andy!
    You're such a good tester!
    Keep it up!
    If time permits, could you please repeat what your friend has done?

  • @raphofthehills4405
    @raphofthehills4405 Год назад +1

    Got a Zketech EBC-A40L 3 months ago. Died with a spark-ey sound while charging its 2nd NMC Leaf cell. Replacement unit emitted magic smoke after charging a dozen LF280s... Got a replacement PSU from the vendor who, apparently, is used to seeing PSUs fail on these things.
    Opened the unit. Is better put together than I expected: well laid out boards, beefy mosfet heatsinks, etc. PSU is just a no name S-300-5 60A brick ($25 online).
    Thanks Amazon for the no-fuss return policy !

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      Oha, that's not good. I haven't heard or read about any power supply issues with these testers.

  • @offgridd
    @offgridd Год назад

    Great test! Love to see your posts! Was looking for a good tester with a decent current that also shows graphs on a computer as well. Ended up with you (probably because RUclips nested some cookies in my pc that guided me to you but thats another story concerning privacy...). Keep up the good work!

  • @JosefSteinbauer
    @JosefSteinbauer Год назад +1

    very good video😁 best wishes to Down under from Bavaria👍👍👍

  • @sergiobuchberger1257
    @sergiobuchberger1257 Год назад

    Thanks so much Andy, I'm learning a lot !

  • @GTrainRx7
    @GTrainRx7 Год назад +1

    I am currently running a capacity test with the EBC A20 and windows did something stupid with the USB port mid test. The display says that it is doing what it should be, will report back if it goes wrong. Capacity test is on 6s 35Ah LTO from 14.5v to 12v (car battery replacement)

  • @steffenselbmann310
    @steffenselbmann310 4 месяца назад

    What Windows OS are you using with the ZKE - Windows 10 /Windows 11 and is it stable?
    Great Video - if every of your videos I watch would disappear - there would be now Videos
    Greetings from good old Germany

  • @jackoneil3933
    @jackoneil3933 Год назад +2

    Important safety test Andy, and perhaps one that should be preformed as a precaution before trusting such devices. And as an added safety precaution, I suppose one of those inexpensive 30amp over-under voltage solid state relay modules could provide added protection, and even used to control a mechanical relay if needed.
    Also, how high or low can you set both testers, and is it possible to set them to cause damage or do they have an absolute protection limits?

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      Thanks Jack. You can set the testers to destroy your battery entirely, no problem. So you have to be mindful of what you are doing. Like with any other charger, the settings need to be correct for the type of battery you're going to test.

    • @jackoneil3933
      @jackoneil3933 Год назад +1

      @@OffGridGarageAustralia Thanks!

  • @andredejager3637
    @andredejager3637 Год назад +1

    More safety videos yay!!!

  • @RobinRastle
    @RobinRastle 7 месяцев назад

    Yeah bought an ec 20 unit waiting delivery, thanx for reassurance. Somehow I will feel better if I instal an independent voltage alarm monitor tba. Surely if the charge supply is already limited to 3.6V that gives you a safety headroom? Either way, safety is priority. Overcharge a Lifepo destroys the electrolyte and damages capacity irreversibly. I like headroom.

    • @RobinRastle
      @RobinRastle 7 месяцев назад

      you have to be careful that your pc doesnt go into sleep mode or start updating, or recording will stop and you lose all data. Pity the s/w doesnt have an auto save data feature for at least the csv file, say every 5mins or so.

  • @tjunkieu2b
    @tjunkieu2b Год назад +2

    The charger stopped right at the cutoff current configured in software. I didn't hear that in the video and I think it is critical. It may be worth confirming that with various cutoff current settings.
    Then it's not a safety feature, but rather it's core function and software sets the cutoff into the device. So yeah all good.

    • @CollinBaillie
      @CollinBaillie 8 месяцев назад

      This. The 40A charge test which went over voltage cut off at the 5A cut-off which was set. Not any sort of over-voltage safety black box setting.

  • @mannyfragoza9652
    @mannyfragoza9652 10 месяцев назад

    I really enjoy these tests I may eventually get the 20 amp ZKE

  • @mitchellgast7272
    @mitchellgast7272 Год назад +1

    Computer should just be an HMI not a controller .... Good catch!

  • @9111logic
    @9111logic Год назад

    Nice one Andy, nice to know that they are both safe as we all will need one of them at some point 🙏Thank You, another beer coming your way 🍺- cheers 😉

  • @greenbimoon
    @greenbimoon Год назад +1

    Thanks Andy, Perfect

  • @Dutch_off_grid_homesteading
    @Dutch_off_grid_homesteading 9 месяцев назад

    Heya, nice to see you do your own testing to see what others say is true good to know it's not true

  • @dobosharom1888
    @dobosharom1888 Год назад +2

    Computer software never control the charging and discharging. When you start a single or series of tasks it send info to the charger to start simple task with the settings.
    The process is absolutely safe. The computer only shows the measured parameters.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      I haven't tested a series of tasks... would that stay in the tester as well when interrupting the USB connection? Not sure...

    • @dobosharom1888
      @dobosharom1888 Год назад +1

      @@OffGridGarageAustralia Only the running task is in the charger. When it finished, the software will start the next one...

  • @FutureSystem738
    @FutureSystem738 Год назад

    Nice Andy- as always, love your work 👍👍

  • @sammarch4314
    @sammarch4314 2 месяца назад

    One note when using this battery testing machine set your computer so that the computer does not go to sleep because there is a known issue with the USB port that changes when your computer comes back to life after being in the sleep mode you can turn the monitor off when ever you like with out an issue

  • @zeropointbalance7366
    @zeropointbalance7366 Год назад +2

    Thanks Andy, Nicely done.
    Just a consideration.
    You have shown a single test, and I assume the software downloads one or more events to the tester.
    If you start a 'discharge-then charge' test and then unplug it could trigger the issue. (grasping at straws in case the Michael can replicate his problem)
    If there is a bug in that system, the potential exists that a second event has problems - was the reported issue a single test or a queued test?
    You can ask the Michael to see if he was doing anything different.
    Also if the stop event is downloaded short time after the start event and you unplug in-between the tester may miss the end of event instructions.
    Do you think the software downloads the whole schedule if you have multiple events?

    • @inmyimage1081
      @inmyimage1081 Год назад +2

      Even if it’s coded extremely poorly the is little to no chance you are going to interrupt the instructions before they can be completely transmitted. The amount of data required to be transferred to the tester should be less that 1kb. The only exception is if the software waits to complete the first half of the test before transmitting the second cycle.
      You do actually have an interesting test embedded in your suggestion though if it transmits both halves of the test at one time and that’s to disconnect the computer after the first half of the test has started and seeing what happens after the bounce to the second half which does not have the computer connected at any point during the entire half of the test cycle.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      I'll test this with the next batch. Thanks for your suggestion.

  • @maxmeyer7299
    @maxmeyer7299 Год назад +1

    Hi, great test, it also switches off in cycle mode, it also seems to save some test steps in the tester.. I've had the connection break off before, except for no graphics, nothing happened.

  • @somebody1869
    @somebody1869 Год назад

    These look like great testers. But I am looking for a replacement of my Revolectrix PowerLab 8. It is (was) capable of doing 1024W regenerative battery cycling with a programmed charge/discharge/charge cycle on up to 8S batteries at up to 40A. The power supply could be up to 24VDC and if the power supply is a battery, the powerlab would discharge the test battery by charging the supply battery. Much less heat generated and much less power wasted. Unfortunately, the company has closed shop and there doesn’t seem to be an equivalent product anywhere.

  • @kornelkatai441
    @kornelkatai441 3 месяца назад

    A quick question on the smaller unit. On AliExpress it says 85watts. Can you use to discharge 12v @ 20amps a big lead acid battery

  • @ОлегХитрый
    @ОлегХитрый 6 месяцев назад

    Thank You! Could You make a video, how to charge a wet Ca-ca 12 V car battery? Best regards!

  • @Kolin4556
    @Kolin4556 11 месяцев назад

    It is better to check the accuracy of maintaining current consumption after heating. I will say right away that it is very low there - 10-20% of the current, + 10-20% of the capacity or even more.

  • @mmeuwese
    @mmeuwese Год назад +1

    You can also use the megacellmonitor with the zketech chargers. Not all models are supported but more and more are being added …

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      How does this work with the ZKETech? Does it read the data directly from the tester?

    • @mmeuwese
      @mmeuwese Год назад

      @@OffGridGarageAustralia yes, the usb cable gets connected to the pc which shows as a com-port. Mcm uses the com-port to directly communicate with the zketech charger.

  • @wayne8113
    @wayne8113 Год назад +1

    Thanks Andy

  • @GTrainRx7
    @GTrainRx7 Год назад

    I bet I can guess what you are testing next!!! ;-p
    I have one of the small EBC, so this is super interesting. Still worth testing!

  • @johnsteamer828
    @johnsteamer828 Год назад +1

    Nice job Andy

  • @BoraNRW1
    @BoraNRW1 Год назад

    Charging with the ECB40 should not exceed 35A as per manual. There have been some broken devices in the forums. You may mention that in the description.

  • @georghope4034
    @georghope4034 Месяц назад

    Da hab ich noch mal Glück gehabt. ;-)
    Ich habe mir den "großen" Tester erst vor 2 Wochen zugelegt. (auf deine "Empfehlung hin - wegen der schönen Graphen) *ggg*

  • @tomassliauteris884
    @tomassliauteris884 11 месяцев назад

    I will check my two testers too!

  • @loucinci3922
    @loucinci3922 Год назад +1

    Thanks for sharing

  • @henrikprebennielsen4612
    @henrikprebennielsen4612 Год назад

    Hej alle sammen, tak for en godt kvalitet kontrol. Jeg efter lyser en test med defekt batteri, hvordan er så sikkerheden , burde der ikke være en temperatur kontrol . MVH. Henrik

  • @robfre70
    @robfre70 Год назад

    Ich hab ein Update installiert nach Windows 11. Jetzt ( Obwohl ausgeschaltet) schaltet der Rechner sich automatisch aus. Wann genau ist mir unbekannt. Der Tester läuft im hintergrund weiter so wie bei dir im test. Was mir aufgefallen ist und was ich sehr gut finde, ist das wann der Rechner wieder hochgefahren ist der Software von ZKE automatisch weiter macht. Der anzeiche auf der tester wird von der software übernommen. Gute sache. Nur das testen dauert ewig, aber der A40L ist unterwegs aus China.
    Keep un the good work Andy. We will keep watching. ( All channels for me though 😏😏😏)

  • @rilosvideos877
    @rilosvideos877 Год назад

    Did you buy a new tester or did you finally manage to repair the broken one?

  • @kirkoliver2878
    @kirkoliver2878 Год назад

    I do have one question about how you disconnected the USB to the computer. Unless the blue dongle is only wires, it may be that the USB to serial interface terminates with the cable pull in a safe way. It might be that the ‘Cracker’ hangs if the connection happens at the back of the Box. Just a thought.

  • @KevIsOffGrid
    @KevIsOffGrid Год назад +1

    I would ^guess^ that the "last line sent" on a multi line charge/discharge program from the computer is what the box gets. You could test this with voltages less extreme - just a few lines in the PC, and then pull the USB plug - eg discharge to 3.200, charge to 3,300 (lols, edit - should have just waited a little longer - this was pre 17 min comment)

  • @stanislavmlcuch2085
    @stanislavmlcuch2085 Год назад

    I have destroyed one cell with A40L 😀
    I played with voltage correction and I set the high voltage to 3,3V (I dont remember the right word) and charger showed this value on the display even when the voltage was higher. So charger thought that on the cell is still 3,3V but it was not true. Result was I overchargered one cell to 4,3V🙄 I found out after few hours, so the cell was bloated a lot.
    I havent test this again, and now I dont have A40L anymore, but Andy, you might test it 😉 Whath do you thing?

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +2

      I have never touched these settings. The manual says they are for calibration purposes, as far as I can remember...

  • @gg-gn3re
    @gg-gn3re 10 месяцев назад +1

    pretty basic firmware fix. Just poll the computer every second and if it is disconnected, shutoff the unit. Did they every fix it?
    What it's doing now is sending the config to the controller for your unit. Which should be plenty safe (guy that emailed you apparently doesn't have that? outdated firmware?) but to be even safer it can just shut down when that disconnect occurs.

  • @ejoep
    @ejoep Год назад

    Hey Andy, do you know what is the name of the com cable used in that tester. Mine broke yesterday.😢😢😢

  • @teddypreston5525
    @teddypreston5525 Год назад

    Another great video. Michael's version could be an earlier one. Which version is the one you have?
    Terminology is everything in the lab(garage in some cases)! Could you; please, elaborate in a phrase you just used... "abused in all directions"?!?! Or is this just a German thing? No offense.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      Thanks Teddy,. Well, we have tested the heck out of this cell a while back, when we did all the battery cell testing here on the channel. It was charged/discharged will all levels of currents, even a bit overcharged and underdischarged sometimes. Hence, I said we abused it 😁

  • @Skeptic100100
    @Skeptic100100 Год назад

    I have always had an issue with the tester freezing while charging and discharging. Never had an issue of overcharging thanks goodness but I never unplugged it when freezing. However I was working with the seller and they always informed me that is was a driver issue because I was running windows 11 and the driver was a windows 10. Not an issue with the driver itself but the way I was loading the driver (I assumed). After a while I just gave up trying to get them to fix it. I still use the PC cable, sometimes it works all the way through and sometimes it still freezes. Not willing to try and overcharge my cells. Thanks for the upload

    • @tx75e94
      @tx75e94 Год назад

      Hi, I actually have a the same issue with a windows 10 computer But in my case it worked on before and just stopped. My thinking is that I might have damage the cable but I don't have a second one to confirm it. Are planning to see if I can order a spare cable from the supplier next time I order something.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      You can try another USB to RS232 adapter and see if that helps. You need to solder the cables back onto the new adapter though, coming from the tester.

    • @sammarch4314
      @sammarch4314 2 месяца назад

      @@OffGridGarageAustralia I am using Windows 7 and do not have this issue but be aware that there two different versions of the USB adapter for the battery testing machine

  • @immrnoidall
    @immrnoidall 2 месяца назад

    HELP, I need some of those plugs for making NEW BIGGER charging cables.

  • @natesoffroad
    @natesoffroad Год назад

    This is interesting as I have a cell I testing with this unit and I found it charged at 3.85v and it bloated up the cell. I can't say that it was my error or this runaway issue.. a simple test would be to send the parameters to the unit by start button then disconnect using disconnect button and see if the parameters stick on the machine. Even power cycle the machine. I belive they do get sent and stored on the machine.. at least with mine. I'll post this finding as well as the bloated cell video shortly.

  • @davidpenfold
    @davidpenfold Год назад

    Nice test, thanks.

  • @highlander2330
    @highlander2330 Год назад +1

    I had connected the EBC-A40 and EBC-A20 to the same PC via USB and the Windows lost connection to both devices because of USB problems when 2 devices are connected (repeatable).
    Maybe you can test this as well? But both did exactly what was programmed and did not overload the battery

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      I did this and opened the program on the computer twice and it worked. I could run both testers at the same time with different settings. The USB to RS485 adapter show as COM4 and COM5 on my computer.

  • @mikeunum
    @mikeunum Год назад

    So it's mean the USB Interface is NON Isolaten or not correct Isolated against the ground or 5V from the tester, or the internal controller has no SAFETY Mechanisme but not in all models depending on the software version ???

  • @matija3791
    @matija3791 Год назад

    Laptop broke 3 times during testing of my 16 cells and the voltage I measured the next day after breakdown was always safe. Only the waveforms were gone, what was annoying...

  • @Micro_Gen
    @Micro_Gen Год назад +1

    I had a problem with ZKE A20, sometimes it lost connectivity with the computer and the application crashed. I changed the rs232 cable and now everything is ok

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      Thanks a lot for sharing. I read this before that someone had an issue with the adapter. I guess, any RS232 adapter will be fine for that?

    • @Micro_Gen
      @Micro_Gen Год назад +1

      @@OffGridGarageAustralia Once I bought a few cheap RS232 adapters for 2 euros each, I have Smart Shunt and BlueSolar connected to raspi, they work stably, so I used it for ZKE

  • @excillisbank2611
    @excillisbank2611 Год назад

    Bien...👍

  • @antonwidodo242
    @antonwidodo242 Год назад

    where can I get the software to connect to the computer?

  • @PowerPaulAu
    @PowerPaulAu Год назад

    Phew! Your title freaked me out as I use these a bit here. But it's good to see you found the same as I did :)
    HOWEVER!!!
    I have 2 of the 40A testers, and I have found some odd behaviour. I haven't yet been able to replicate it reliably, as it happens so randomly and usually when I'm not in front of it. It also seemed to happen more when I was running most of my gear off inverters (HF type), but I'm not sure if that is a factor or if it was just timing.
    Basically after X period of time, the screen looses the plot and shows gobbledegook random segments. So what's on the screen is useless and it needs a full power down to clear it. There have been changes in computer used (all laptops though) and they all seemed to react the same. The only thing that seemed to make a notable difference, is putting the ZKE tester through an Isolation Transformer, so I have been making the assumption that it's a ground loop that's not being handled well.
    The other thing is I have seen the software crash (by just completely disappearing) many many times, and that's annoying so I don't rely on it at all now, I just use it for easy setting. This also means I don't program multiple actions any more, it's pretty much just a charge or discharge, or sometimes charge then discharge because the end result is still shown on the screen of the tester.
    If anyone else has had any of these issues, please let us know so we can hopefully come up with a solution, or even a known cause.

    • @raphofthehills4405
      @raphofthehills4405 Год назад

      Hmmm, did not see either behaviors. Bought one 3 months ago, died twice (PSU). Sometimes when AC turning on the unit, its LCD displays garbledigook (fixed by cycling again). And never had the SW crash (Win 10). That's over ~200 charge / discharge cycles across 32 LFP cells.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      Thanks, Paul.
      Not seen any of that behaviour ever what you described. You could use a different 12V inverter to run the tester to see if the screen issues still persist. I had mine run form the Multiplus, the Phoenix and also the grid without such screen issues.
      Also, the software has never crashed on me. It has run for weeks without any crashes.
      What Windows are you running on your test laptop/PC? If you can connect to another machine for testing. Could be a driver or other incompatibility with a software on your system.

    • @PowerPaulAu
      @PowerPaulAu Год назад

      @@OffGridGarageAustralia yep it's weird. I can't reliably reproduce either issue, but hopefully I'll have a better chance to try again soon.

  • @mortensvenning4600
    @mortensvenning4600 Год назад

    Have you evner experienced problems with the bit charger? My cashes after on 5 minutes of charging and was completely black after this.

  • @johnstouchpad6437
    @johnstouchpad6437 Год назад +1

    Andy could your chargers be newer? Could there be a different firmware level? Just a thought.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      Mine are fairly old, around 1.5 years now. Could be a difference in FW. It shows the date at the startup. We can compare.
      The software on the PC has never changed afaik.

    • @victorandersson9737
      @victorandersson9737 Год назад

      @@OffGridGarageAustralia Mine is bought 2023 and hase the same FW

  • @chuxxsss
    @chuxxsss Год назад +1

    Wish I had time this week to play with the Chinese cracker. Temperature drop to 27 degrees C down here from 41.6 yesterday.

  • @highflowhighflow9896
    @highflowhighflow9896 Год назад

    have a look at those dc connectors... seems the use old fassion CB radio microphone 4pin connectors? i would make worry if they are capable for such high DC current....
    ZKE is pretty old brand used to make all kind of equipment

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      Never had a problem with these connections. And I used the 40A tester a lot, running it for weeks...

  • @DavidTLutz
    @DavidTLutz 10 месяцев назад

    Does EBC-A40L draw 40A from mains? I hesitate to buy one if I need 40A mains to plug it into.

    • @Kregorius
      @Kregorius 6 месяцев назад

      Ooh, good one 👍
      I have coffee all over the table.
      You may be missing more than a 40A mains socket though. 😂

  • @josefpdx1
    @josefpdx1 Год назад +1

    Andi , What would happen if the usb cable stays plugged in but you close the application on the PC?

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      That does the same basically. The settings are stored in the tester so no matter what, it will be safe.

    • @josefpdx1
      @josefpdx1 Год назад

      @@OffGridGarageAustraliathanks, keep up the good work

  • @inmyimage1081
    @inmyimage1081 Год назад +1

    To get to 110% you need to run 2 more test conditions:
    1 - While running disconnect the USB, let the test continue for a bit and then reconnect it.
    2 - While running leave everything connected and reboot the computer, do not do anything at all with the computer until the test is complete.
    Otherwise good job 👍

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      Reconnecting the USB does not make the program continue. You need to disconnect and connect the com port again in the software. Some have said, the tester even stores some of the data for a while but the graph is obviously lost
      The second test will do exactly what I have shown. That's how I started mu testing but found it takes just too long to restart every time. Disconnecting the USB has the same effect as restarting the PC.

    • @inmyimage1081
      @inmyimage1081 Год назад

      @@OffGridGarageAustralia As a former software engineer, enterprise design engineer and softwareqa manager, I can say that what you expect and what happens in reality are not the same thing, the real world results are called “bugs” and software updates. In this case, pulling the cable while the system is running is a simple disconnect and is a test that has value since it truly is a real world example, but it is not the same as a computer unexpectedly rebooting. During a computers boot and initialization phase it tests the devices currently attached to it and if so, it looks for drivers that are installed and then does a basic communication test to confirm that it in fact can communicate with the device. All that causes communication between to devices, or at least an attempt at communication and is also a real world test because… well… Windows…
      The same is true when you plug in a device while a computer is running regardless of whether a specific comm port is required to communicate data between the devices and is not the same as disconnecting the device and never plugging it back in when the system/test is finished.

  • @ianpope7061
    @ianpope7061 Год назад

    Useful.....

  • @silverbackag9790
    @silverbackag9790 Год назад

    I have two of these pieces of shit (the 40Ls). One developed a buzz (which went away with a few taps).and then finally quit powering on. Assuming it’s the power supply.

  • @coreybabcock2023
    @coreybabcock2023 Год назад +1

    I need a recommendation on a 5 amp active balancer that I can afford under 30.00 bucks

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      No problem, all linked in the video description and on my website: off-grid-garage.com/battery-management-systems-bms/

  • @Zirrad1
    @Zirrad1 Год назад

    Try it without disconnecting, just terminate the control program.
    The tester can sense a disconnect in hardware, but possibly not the other.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      I did this as well and it keeps running. Even disconnecting from the comms port in the software keeps it running.

  • @artoguz
    @artoguz Месяц назад +1

    I have this kind of machine and I can send it to someone in Europe for a reasonable price.

  • @edgoodson3174
    @edgoodson3174 Год назад +1

    A good reason why you should always use a BMS.

  • @jurajnikolov4219
    @jurajnikolov4219 Год назад +3

    my tester behaves the same, I have 40A version, it stop charging at the reaching set value, after the laptop freez me :D :D :D or closing lid and get in the sleep mode :D :D :D

  • @dredre9484
    @dredre9484 Год назад

    Bought a cheap charger(I know I know)now this is the thing when Im charged it turns off then later it turns back on then turns off etc etc now wondering is this the absorption stage or is the BMS turning it off untill the balancer makes it safe to charge

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад +1

      Only you can find out... sound rather the BMS turns off. Absorption should turn off and that's it but not back on unless you have a load connected .

  • @jasonvoorhees3282
    @jasonvoorhees3282 Год назад

    I have been suffering from my A20 device with almost the same problem. When connecting to a computer and starting testing, the program freezes after some times and stops recording data as if the usb cable was disconnected (except it wasn’t). It’s so annoying and I’m still suffering from this problem. I have like 60% chance of this occurring each time I connect it.
    Any advice would be appreciated.

  • @A2an
    @A2an Год назад

    Could it be that there's two different software version, so be where everyone.

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      You mean computer software or firmware on the devices? Not that I'm aware of...

  • @michaelvw11
    @michaelvw11 Год назад

    It could be just be a software bug and not a disconnect problem

  • @nikolas22954
    @nikolas22954 Год назад

    Where are you buying your cells at

  • @eduardorivas363
    @eduardorivas363 Год назад +1

    I think it is a windows thing. If the pc goes to sleep and does not disconnect, the pc may not send signal to stop. When disconnected in sleep mode, the charger stays in normal mode. When the USB is disconnected, the charger goes to its memory. Windows continues to control the usb even in sleep mode but the software stops functioning.

  • @ivoscuka8537
    @ivoscuka8537 9 месяцев назад

    Hello, everyone. I have a friend with a broken EBC-A40L, after tests it seems to be specifically with a non-functioning motherboard with a processor-board behind the display. Communication with the manufacturer is not working, they are not responding. Could someone give me the motherboard from your NON-functioning box? It's a small board, so easy shipping just for a mailing envelope. I would try to replace it for him...

  • @tompreiss5010
    @tompreiss5010 Год назад

    Just put a very basic BMS between the conditioner and the battery for dubal redundancy.😳😳😳

  • @Urge38
    @Urge38 6 месяцев назад

    CAN WE PLEASE HAVE A FORUM on your webpage, would be good to start a community

  • @equi2k23
    @equi2k23 Год назад

    Maybe different firmware versions?

  • @IanNature7
    @IanNature7 Год назад +1

    🦥 I mean it‘s Anakin Skywalker, not a normal Jedi 😂

  • @cyberplebs6577
    @cyberplebs6577 Год назад +2

    🐸

  • @dantronics1682
    @dantronics1682 Год назад

    I didnt think you could overcharge life batteries,

    • @OffGridGarageAustralia
      @OffGridGarageAustralia  Год назад

      You absolutely can! Specs usually go from 2.5V to 3.65V per cell. If you go below or above you over discharge or overcharge the cell and damage it.

  • @wowyummyyy
    @wowyummyyy Год назад +1

    L I K E 👍 👍 👍 👍 👍 💯 💯 💯 💯💯🤩❣🤩❣🤩🤩

  • @anthonyrstrawbridge
    @anthonyrstrawbridge Год назад +1

    👍 good stuff

  • @paulcurtis5496
    @paulcurtis5496 Год назад +1

    Like# 441