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Thread: SkyRC — IFA 2014 — MC3000 charger-analyzer

  1. #4711

    Default Re: 2nd gen dreamcharger presented on IFA Berlin 2014…

    The SW really is poorly written, under 7 with increased DPI settings I got half of the settings window overflow where I can not see it cause the window size is static and can not be made larger (ehm). Gonna have to use it with some of the XP machines anyway for now. I've also learned from the distributor that I will need single computer for each charger as the SW can not handle more chargers simultanneously, that's not much advanced either. Well I don't neccessarily NEED the SW, can as well read the values from the display, it just appears to be easier to maintain.

    And than they wrote me some talk about how this is for modelers so nobody will buy charger for 8+ cells which I told them to inquire from SkyRC. Well since there is no such advanced device for more than 4 cells, I would say somebody will bloody buy that as there would be no other option. But this is like barking on a tree…

  2. #4712

    Default Re: 2nd gen dreamcharger presented on IFA Berlin 2014…

    To kreisl :
    On page 1, we can find this bug :
    bug: NiMH "D>C, N=1" should report discharged capacity as "Cycle1" in SOV (UNCONFIRMED)

    I think i can give you some explanations :
    If the charge processus ends in a normal way ( delta peak for exemple) then the discharged capacity is reported as Cycle1.
    But, if the charge ends in an abnormal way (for me, capacity cut), then discharged capacity is not reported at all.
    The discharged capacity should be reported all the time.

  3. #4713

    Default Re: SkyRC — IFA 2014 — MC3000 charger-analyzer

    Quote Originally Posted by Dr. Mario View Post
    LTO cells do exist, but is expensive, and hard to find. At least for now, as was the case with Li : FePO4 cells back in mid-2000s. I can wait though, as MC3000 is software upgradeable, as far as I know.
    Are you still waiting?



    pretty epic

  4. #4714

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by Mr.Ampere View Post
    As a first contribution, i Will share my experience with DEX logging and configuration, not so easy as one could think...
    So, when I first installed DEX, some values were reported wrong (for example, the battery temperature was 270 instead of
    27,0°C). Looking around in DEX, I found the "Device properties editor" window, and specifically the "Outlet-channel/Configuration" tab.
    For example , choose the "slot1" tab, "Battery temperature" sub-tab :
    - right clic on the "Statistics" sub-sub-tab, "Add Property Type" and the "Factor"
    - you can then enter a value (0.1 in my case) and save all this...(SAVE button)

    BUT, if you try to modify this for another slot, save it, and look at the first slot again, the parameter previously saved is missing ! A bug in the saving process I guess...

    So, what you can do is editing the file in an appropriate editor, such as NOTEPAD++ (freeware) :
    1. go to C:\Users\<yourname>\AppData\Roaming\DataExplorer\D evices
    2. do a backup of "MC3000.xml" and "MC3000-Set.xml"
    3. do a copy of "MC3000.xml" => "MC3000-MYSETTINGS.xml"
    4. edith the "MC3000-MYSETTINGS.xml" file with NOTEPAD++
    5. the xml file is self-explanatory :
    in the "Device" section, modify the name of the device :
    <name implementation="gde.device.skyrc.MC3000">MC3000-mysettings</name>
    in the "Channel" section, adjust your parameters, for example for the battery temperature :
    <Measurement>
    <name>BatteryTemperature</name>
    <symbol>Tb</symbol>
    <unit>°C</unit>
    <active>true</active>
    <statistics min="true" max="true" avg="false" sigma="false"/>
    <property name="factor" value="0.1" type="Double" description="Correction for temperature slot1"/>
    </Measurement>
    do the same for the 3 other slots, and maybe for other values you want to correct/adjust

    6. save the file , and add the "read only" property to the file (sometimes, DEX try to modify the file even if you don't access the "Device properties editor" window).

    7. then , in DEX, add your new configuration file with the "Device selection dialog" window...
    Last edited by Mr.Ampere; 05-17-2017 at 03:22 AM.

  5. #4715
    Flashaholic*
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    is the max discharge still 1 amp for this unit, with latest firmware for lion batteries ?

  6. #4716
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Using "Simple" mode I set it up to do a charge under "Eneloop AA" to charge four Eneloop AA's and all were alarmingly warm upon completion of the charge cycle. I thought heat was the enemy of NIMH cells and I also thought this charger was programmed to take the very best care of my batteries. What gives?

  7. #4717

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Nice try

    I should try again too

  8. #4718
    Flashaholic tjh's Avatar
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by HighLight View Post
    Using "Simple" mode I set it up to do a charge under "Eneloop AA" to charge four Eneloop AA's and all were alarmingly warm upon completion of the charge cycle. I thought heat was the enemy of NIMH cells and I also thought this charger was programmed to take the very best care of my batteries. What gives?
    Charging with -dv/dt will warm the batteries. If you want super cool cells that aren't fully charged, terminate on 1.48v.

    The charger is designed to be as flexible as possible... Not to baby your cells. Most people agree that a slight warming caused by -dv/dt isn't a problem long term anyway, but if you're paranoid about your cells this charger gives the power to trickle them along as cool as a cucumber if you want.

  9. #4719

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by kreisl View Post
    I should try again too
    @HighLight, sorry i misread your post. I thought that your were talking about the "Dummy" mode. So today i tested the Dummy UI Mode. The Eneloop AA's stayed cool as **** for the entire time. No wonder, because since FW1.10 or so the charger uses the MH-C9000 algorithm to terminate the Eneloop charging which is a very conservative way of charging. Hence my advice, if you're worried about cell temperature and don't want to fiddle with settings, you can use MH-C9000 or the MC3000 Dummy mode.


  10. #4720

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    What you think about these 1.5v Li-ion AA rechargeable batteries? I guess this dreamcharger can't handle those.

    https://www.amazon.com/KENTLI-3000mW...dp/B01H0H6K2C/

  11. #4721
    Flashaholic tjh's Avatar
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    edit: I'm 100% wrong, see below.
    Last edited by tjh; 05-28-2017 at 12:53 PM.

  12. #4722
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by tjh View Post
    Not currently, but if they became really popular a simple firmware update and they would be supported.
    No, they require a special designed connection in the charger.
    Actual charging algorithm is normal LiIon.

    I have taken a look at the older generation: http://lygte-info.dk/review/batterie...e%29%20UK.html
    My website with battery and charger information: lygte-info.
    More than 1000 reviews of batteries, charges and other stuff.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

  13. #4723
    Flashaholic tjh's Avatar
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    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by HKJ View Post
    No, they require a special designed connection in the charger.
    Actual charging algorithm is normal LiIon.

    I have taken a look at the older generation: http://lygte-info.dk/review/batterie...e%29%20UK.html
    Thank you, I stand 100% corrected and feel suitably silly

  14. #4724

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    maybe this is the official website for end consumer? -> http://www.unbatteries.com/
    i am guessing that one could build a DIY adapter for this exotic battery in mc3k slot, similar to the Kentli charger's positive terminal:


    (photo credit HKJ)

    Today i am testing FW1.14beta with DEXbeta, the LTO got implemented just fine in either software, debugging now. Since i have no real LTO battery, i made a substitute sufficient for the sake of testing the codes lol :




    ( project history: pic1, pic2, pic3, pic4, pic5, pic6 )

    2xAA is about in the voltage range of LTO. Not my idea, so plz don't hit me

  15. #4725

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by kreisl View Post
    Today i am testing FW1.14beta
    If new firmware is in the works, how about they make the program shortcuts(currently UP+SNB) usable while theyre at it.
    Big issue with using the shortcuts, is that if you already have 1 battery charging you cant use them because pressing up or down takes you to DDV(voltage + temp graphs).
    Either priority can be used, say if any slot in READY state then pressing UP or DOWN doesnt activate DDV, or make DDV a longpress command on UP or DOWN.

    Also at the moment you can only program 4 shortcuts, make that 8 by adding the DOWN+SNB.Easier to make full use of the function if youre using more than 1 chemistry. That DOWN+SNB combination sitting unused for very long, time to get it in the game

  16. #4726

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by kreisl View Post
    i am guessing that one could build a DIY adapter for this exotic battery in mc3k slot, similar to the Kentli charger's positive terminal:
    I thought the same, thanks for pointing that out.

    Great to see huge progress on LTO chem support implementing!

  17. #4727

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Another idea I'm thinking about is related to calibration and voltage measurement.
    Currently only one value both for voltage and current is used for calibration and so the charger simply scales the readouts according to the computed calibration factors.
    But to take care of voltage offset issues, if feasible, the charger could enable an advanced voltage calibration to compute both an offset and a scaling factor to improve voltage measurement. Obviously the user will have to use two different cells to be able to calibrate at 2 corresponding voltages (and not too close one to the other to have a better offset estimation).
    What do you think about this idea?

  18. #4728

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by DeJaVu View Post
    If new firmware is in the works, how about they make the program shortcuts(currently UP+SNB) usable while theyre at it. Big issue with using the shortcuts, is that if you already have 1 battery charging you cant use them because pressing up or down takes you to DDV(voltage + temp graphs). Either priority can be used, say if any slot in READY state then pressing UP or DOWN doesnt activate DDV, or make DDV a longpress command on UP or DOWN. Also at the moment you can only program 4 shortcuts, make that 8 by adding the DOWN+SNB.Easier to make full use of the function if youre using more than 1 chemistry. That DOWN+SNB combination sitting unused for very long, time to get it in the game
    Hello DeJaVu, the <UP+SNB> works also when a slot is charging 1 battery. For example [11] be assigned to <UP+SNB1> and the charger status be:
    #1 [01] busy; #2 [02] empty; #3 [03] ready; #4 [01] empty.
    Now hit the <UP+SNB#1>-keys at the very same time. For this, I recommend using <index+middle>-fingers of your right hand if you're a righty; this would be 1 double note with fingering (2 3). Hit crisply, don't press. Similar to wrist staccato. If the two keys don't get registered at the vely same moment, then yes you will end up in DDV . Today I wanted to shoot a short video demonstrating my staccato of the double note but these days i am too busy watching roland garros sorry . Anywho i've tested it and the new charger status becomes:
    #1 [01] busy; #2 [11] empty; #3 [11] ready; #4 [11] empty.
    In fact, #1 does really not get overwritten. So when you long-press <STOP> now, the status becomes:
    #1 [01] ready; #2 [11] empty; #3 [11] ready; #4 [11] empty.

    This behavior is correct and as intended by 🐿️
    ( If you find a written description of <UP+SNB> which differs from this example, then you found something wrong 🤐 )
    (( The reason why there is little time tolerance for the double key pressing is of technical nature and can't be helped. Just saying, these common switches are not designed to be pressed at the same time. Think of the rubber buttons on any handheld DMM, and try to press two of them at the same time as normal operation; so DMM designers don't program double key presses as normal operations of the UI. Switches/keys for this purpose do exist though 🤑, they are made in gemani ))

    Also at the moment you can only program 4 shortcuts, make that 8 by adding the DOWN+SNB.Easier to make full use of the function if youre using more than 1 chemistry. That DOWN+SNB combination sitting unused for very long, time to get it in the game
    8? 😶
    OIC
    No promises when we get your 8 but i am seconding it. Good call!
    If anyone has another suitable suggestion for DOWN+SNB, please let us know thanks appreciated! Otherwise we'll do the 8 np. 😝

  19. #4729

    Default Re: SkyRC Β— IFA 2014 Β— MC3000 charger-analyzer

    Quote Originally Posted by kreisl View Post
    Hello DeJaVu, the <UP+SNB> works also when a slot is charging 1 battery. For example [11] be assigned to <UP+SNB1> and the charger status be:
    #1 [01] busy; #2 [02] empty; #3 [03] ready; #4 [01] empty.
    Now hit the <UP+SNB#1>-keys at the very same time.
    God damnit, it was working all this time.........
    When there is no busy slots, then you can press UP+SNB sequentially and it works.Because of that it seemed to me that it isnt working when there are busy slots, as sequential pressing would always land me in DDV.
    Im glad to find out after all this time that it actually works , but still it would be nice from usability perspective, to add slight delay to DDV, like 1second or so.
    With the current configuration you can still miss-click and dont get the desired effect which is somewhat frustrating.
    DDV longpress = happy program shortcut users :P


    Quote Originally Posted by kreisl View Post
    8? 😶
    OIC
    No promises when we get your 8 but i am seconding it. Good call!
    If anyone has another suitable suggestion for DOWN+SNB, please let us know thanks appreciated! Otherwise we'll do the 8 np. 😝
    Yeah it would be nice addition.Personally i would use 4 for Li-Ion and 4 for Ni-Mh as those are the most common chemistries i use, and at the moment 4 are just not enough to cover most popular battery sizes.Im sure other people would tailor it to their specific needs.

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