SunwayLED        
Page 133 of 161 FirstFirst ... 3383123126127128129130131132133134135136137138139140143 ... LastLast
Results 3,961 to 3,990 of 4819

Thread: SkyRC — IFA 2014 — MC3000 charger-analyzer

  1. #3961

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

    Batteries with flat top or with even recessed top like my Samsung SDI 18650 don't make proper electrical contact too unless i lift the unprotected cell to lofty heights of de slot:

    This situation is normal enough and has been treated in the manual to full extent:


    The battery does lose contact with the temperature sensor, that's correct. In SPV you can turn the sensor off with CUT TEMP:OFF. That's the trade-off with flat top batteries in this charger, or one could use a mini magnet at the top of the battery.

    Note that unprotected Panasonic NCR18650GA does not need any magnet or lifting.
    Last edited by kreisl; 11-01-2016 at 12:55 PM.

  2. #3962

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

    I mentioned before, that you can bend the contacts a few millimeters out of the case to make perfect contact. I don΄t know a reason why this should not be the standard of manufacturing..
    http://www.candlepowerforums.com/vb/...t=#post4972268

  3. #3963
    Flashaholic*
    Join Date
    Sep 2007
    Location
    MA
    Posts
    2,861

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

    ... already answered ...
    Last edited by StandardBattery; 11-01-2016 at 06:01 PM.

  4. #3964

    Default Re: SkyRC — IFA 2014 / CES 2016 — MC3000 charger-analyzer

    Quote Originally Posted by gyzmo2002 View Post
    I have received my second charger from Gearbest thursday after 20 days. I also received my upper case for my first one monday.

    It seems that the new charger has the "new case" with tougher plastic pins. I have not opened it to confirm it. The charger was at version 1.10. I have updated it in a minute to 1.11 with the EXE file without hassle on Windows Pro 7 64 bits.

    I plan to cut the fan griddle like my other charger. The temperature difference between the two( fan up) is around 11-12 celsius when discharged 4 18350 at 0.65A. I did not think that the griddle would make such a big difference.
    gyzmo2002,
    Could you tell me if the separate upper case you purchased from Gearbest has the tougher plastic pins? I tried to find out with a "live chat" with Gearbest but they couldn't understand the question, nor could they provide a picture of the bottom side of the upper case.

  5. #3965
    Flashaholic* gyzmo2002's Avatar
    Join Date
    Oct 2015
    Location
    Montreal, Canada
    Posts
    793

    Default SkyRC — IFA 2014 — MC3000 charger-analyzer

    Quote Originally Posted by Sargaso View Post
    gyzmo2002,
    Could you tell me if the separate upper case you purchased from Gearbest has the tougher plastic pins? I tried to find out with a "live chat" with Gearbest but they couldn't understand the question, nor could they provide a picture of the bottom side of the upper case.
    Here it is: http://m.gearbest.com/led-accessories/pp_392591.html

    And it has the tougher plastic pins.
    Sorry for my english. Acebeam k70, Armytek Predator -Dobermann Pro V3 XP-L HI and XHP35, Barracuda Pro V2 XP-L HI, Tiara A1 Pro V2 and C1 Pro V2, Wizard Pro V3 XHP50 and XPL, Partner C4 Pro v3 XHP35, Nitecore TM26, TM16GT, MH20, P12GT, SKYRC MC-3000..+++

  6. #3966
    Flashaholic*
    Join Date
    Sep 2007
    Location
    MA
    Posts
    2,861

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

    Quote Originally Posted by gyzmo2002 View Post
    Here it is: http://m.gearbest.com/led-accessories/pp_392591.html

    And it has the tougher plastic pins.
    Wow price is now $20.

  7. #3967

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

    Quote Originally Posted by StandardBattery View Post
    Wow price is now $20.

    What was the original price, I've only seen it for $20.

  8. #3968
    Flashaholic* gyzmo2002's Avatar
    Join Date
    Oct 2015
    Location
    Montreal, Canada
    Posts
    793

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

    Quote Originally Posted by Sargaso View Post
    What was the original price, I've only seen it for $20.
    Me too🤔
    Sorry for my english. Acebeam k70, Armytek Predator -Dobermann Pro V3 XP-L HI and XHP35, Barracuda Pro V2 XP-L HI, Tiara A1 Pro V2 and C1 Pro V2, Wizard Pro V3 XHP50 and XPL, Partner C4 Pro v3 XHP35, Nitecore TM26, TM16GT, MH20, P12GT, SKYRC MC-3000..+++

  9. #3969

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

    me three

  10. #3970
    Flashaholic*
    Join Date
    Sep 2007
    Location
    MA
    Posts
    2,861

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

    Quote Originally Posted by Sargaso View Post
    What was the original price, I've only seen it for $20.
    Thought it was $12 originally. ... maybe i'm mistaking ... but $20 is &*^%$^%$
    Last edited by StandardBattery; 11-03-2016 at 06:52 PM.

  11. #3971

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

    Quote Originally Posted by StandardBattery View Post
    Thought it was $12 originally. ... maybe i'm mistaking ... but $20 is &*^%$^%$

    Yep, it doesn't seem reasonable that 20% of the total cost ($99) is just for the upper case.

  12. #3972

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

    Hi, just signed in to ask this question:

    The TOV currently shows the voltage in X.XX format (3 significant digits, 2 decimal places). Would it be possible to display the voltage in X.XXX format (4 significant digits, 3 decimal places)? There is room on the LCD panel to accommodate the extra digit, so I just wonder if it is possible.

    It would be really cool to see the voltage rise/drop realtime during charge/discharge processes. The only charger that shows the volts in such a resolution is OPUS BT-C100 (as of Nov 2016)...

    Cheers,
    AA Cycler

  13. #3973

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

    Hello AA Cycler, welcome to CPF: it is the place for which the charger was born and where the suggestions/ideas for improvement are gathered and also realized. In the current type set resolution of 7x12 pixels/char the screen can fit 18 chars only. In fact, the original type set resolution for this screen was 6x8 pixels char but it felt more natural to use the bigger font:


    So we have 18chars per row, for example for slot #3:
    3∂4.99_-2.00_50000

    That's 18chars including 2 necessary spaces, symbolized with underscores.
    In TOV, not possible to show the 3rd decimal.

    Thanks for your interest! Are you an owner and do you like the charger so far?

  14. #3974

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

    Thank you kreisl for your reply. I did not realize the max capacity was 50000 mAh. That requires 5 characters leaving no space for an extra digit for voltage.

    3∂4.99_-2.00_50000

    If the capacity went only up to 9999 there would be space to move the current 1 char to the right to accommodate the extra decimal place for voltage.

    3∂4.999_-2.00_9999

    For me it would be more helpful to have higher voltage resolution right now than being able to measure 10000+ mAh cells in the future. :-) I would personally sacrifice the capacity in favor of higher voltage resolution. But that's not my call, I guess.

    The other option to get higher voltage resolution would be to display the voltage in millivolts (dropping the decimal point), but I guess that would confuse users. And making it configurable would just complicate things. I like it simple. So let's just leave it as it is. :-)

    And yes, I am a happy owner of SkyRC MC3000, in fact I bought 5 of them. 4 out of 5 are running 24/7 cycling my AA Ni-MH cells - this is how I get data for my website - http://aacycler.com

  15. #3975

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

    Quote Originally Posted by AA Cycler View Post
    I bought 5 of them
    omg lol, that's unheard of, fantastic!!

    btw since you're pursuing some serious tasks with mc3k, i do hope that you re-calibrated the units. on my units i was able to improve the ex-fac calibration by a few counts in each slot. the geman manual correctly translates the section title as "feinkalibrierung" (fine calibration) instead of "nutzerkalibrierung" (user calibration). it is also where you can see the 3 decimals on the LCD screen.

    Nice website, congrats!

  16. #3976
    Flashaholic maukka's Avatar
    Join Date
    Dec 2015
    Location
    Finland
    Posts
    484

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

    Quote Originally Posted by AA Cycler View Post
    And yes, I am a happy owner of SkyRC MC3000, in fact I bought 5 of them. 4 out of 5 are running 24/7 cycling my AA Ni-MH cells - this is how I get data for my website - http://aacycler.com
    That site is great! I find it shocking that the Eneloop Pro was dead after 116 cycles!

    It would also be interesting see how the discharge cutoff voltage and charge current affect the life of a cell.

  17. #3977
    Flashaholic* Viking's Avatar
    Join Date
    Jul 2010
    Location
    Denmark
    Posts
    527

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

    It's probably because he doesn't use forced ventilation to keep the cells under 35 °C as in the original IEC test that panasonic does.
    He also uses a higher charge rate/discharge rates, and discharge them down to 0,9 volt, whereas under the IEC rules they are discharged down to 1,0 volt.
    He also stops quite early (when the cells has droped to 80 % of its initial capacity), whereas under the IEC they continue down to approximately 60 % before they stop the test.
    But as long as the cells are tested under the same conditions, thats all right.

    AA Cycler, Great Site you have there

  18. #3978
    Flashaholic maukka's Avatar
    Join Date
    Dec 2015
    Location
    Finland
    Posts
    484

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

    All that's true, which is why I would want to see the data with different parameters. The 80 % point is moot though, since the batteries don't hold any charge after 116/123 cycles.


  19. #3979

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

    Quote Originally Posted by kreisl View Post
    i do hope that you re-calibrated the units.
    I did re-calibrate the units. First I was wondering why are the values so jumpy for different slots, then I read in this thread the initial factory calibration is not a machine calibration, but a human calibration. Well that explained it. I went ahead re-calibrating my units against BRYMEN BM257s I've got. Not a fluke, but I don't aim for accuracy, rather for repeatability.

    Just for fun I removed the bezier smoothing from one of the graphs and you can clearly see the re-calibration happened around cycle 100 on the purple line and around cycle 30 on green line.


  20. #3980

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

    Quote Originally Posted by maukka View Post
    I find it shocking that the Eneloop Pro was dead after 116 cycles!
    The Eneloop Pro wasn't as dead as the graphs indicate. It just failed to deliver 1.5Amp without its voltage dropping belove the 0.9V cut-off before it reached 80% of its initial capacity.

    Sorry for the confusion, I have re-worded my test finalizing conditions to be:

    The cell is cycled until one of the events occur

    • the capacity falls below 80% of the initial value. (For graphing purposes the cell is cycled until 64% of its initial capacity)
    • the cell fails to deliver the required current without sagging below 0.9V - seen on graphs as an abrupt drop to 0 mAh.
    BTW, sorry for hijacking this thread. We should move back to the MC3000 topic :-)
    Last edited by AA Cycler; 11-10-2016 at 02:49 AM.

  21. #3981

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

    the other day i got the Smini olight which came with a free CR123A battery. it is a primary lithium battery with 3V nominal voltage and 1600mAh nominal capacity. a pdf datasheet was not available to me, so i was not sure which CUT VOLT would be appropriate. the mc3k battery type LiFe allows discharging to 2.00V, not any further. so i used that in my first test, then let the battery rest for 12hrs in my pants pockets where its voltage recovered to over 2.6V, and finally did the same discharge test but this time with activated D.REDUCE:-0.01A. After 24h the current was below 10mA and the program did not finish for known technical reasons (it would have finished with a rechargeable lithium battery!), so i switched the view to SOV and long-pressed the STOP-button to induce the program finish. Current dropped to 0mA duh and voltage has been slowly recovering since. Per default DEX records another 15min after the SNB has turned green, which i find neat. It is not possible to discharge a 2.xxV battery with the NiZn or NiCd mc3k battery type for example for the purpose of discharging it to 0.50V, so i was stuck with the 2.00V limit of LiFe. No biggo, since the graphs indicate that i managed to deplete the battery very well. (After yet another 24h the voltage has recovered to 2.317V and the Smini can still produce light on the lower levels.)




    Let's feel free to add the numbers.
    Total capacity ≥ (1517.2+222.4)mAh = 1739.6mAh
    Total energy ≥ (4.086+0.453)Wh = 4.539Wh

    Point is, while these numbers were measured with a -0.20A initial discharge current, they'd be pretty much the same with a -1.20A initial discharge current as long as you use the D.REDUCE option too. Also interesting to know, the D.REDUCE red curve would look smoother, i.e. less zittrig, when the CUT VOLT parameter is chosen higher say 2.6V where the battery voltage is more stable under load, less volatile. At 2.0V the CR123A battery voltage under load becomes volatile, less stable and drops fast at a load. That's where the current regulation gets challenged and we see the current not smoothly being reduced.

    Also note that the total capacity&energy at a constant 200mA discharge, i.e. without discharge reduce, from OOTB voltage down to say 0.5V or even 0.0V will be less than 1739.6 and 4.539. You know why.
    Last edited by kreisl; 11-11-2016 at 05:21 AM.

  22. #3982

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

    Hi All,

    I would like to use the CC-CV algorithm for charging NiMH AA cells instead of the traditional CC charging with -dV termination. I know CC-CV is not intended for NiMH, but I am very curios of the result and would really like to try it out.

    According to the MC3000 manual NiZn uses CC-CV for charging, but the max charge voltage is too high for NiMH. So I cannot use that chemistry.

    Is there a way to define a custom "chemistry" or CC-CV algorithm with custom max voltages in MC3000? Or is there any other way to accomplish what I want using my MC3000 charger?

    Thanks a lot,
    Cheers,
    AA Cycler
    Cycle count tests of AA batteries - http://aacycler.com

  23. #3983

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

    Quote Originally Posted by AA Cycler View Post
    Or is there any other way to accomplish what I want using my MC3000 charger?
    You could try BATT TYPE: RAM
    Last edited by kreisl; 11-12-2016 at 06:10 AM. Reason: rude

  24. #3984

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

    FW1.12 announced on NEWS page:
    http://www.skyrc.com/index.php?route...nt&news_id=192

    i've installed it thru my geman winxp system and premium usb data cable = with no problems whatsoever



    see 'the list' for details on the bug fixes.
    this firmware update is considered minor and optional and useful for limited audience only (like ambitious DEX users), not everyone will want or need it. there are no plans to release it to factory production.

    webpage online download availability only
    Last edited by kreisl; 11-12-2016 at 05:42 PM.

  25. #3985
    Flashaholic maukka's Avatar
    Join Date
    Dec 2015
    Location
    Finland
    Posts
    484

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

    Nice patch!

    Today one of the plastic posts broke on my "first batch" MC3000. Lasted surprisingly long..

  26. #3986
    Honorary Aussie
    Join Date
    Feb 2014
    Location
    USA
    Posts
    4,302

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

    Quote Originally Posted by AA Cycler View Post
    Hi All,

    I would like to use the CC-CV algorithm for charging NiMH AA cells instead of the traditional CC charging with -dV termination. I know CC-CV is not intended for NiMH, but I am very curios of the result and would really like to try it out.

    According to the MC3000 manual NiZn uses CC-CV for charging, but the max charge voltage is too high for NiMH. So I cannot use that chemistry.

    Is there a way to define a custom "chemistry" or CC-CV algorithm with custom max voltages in MC3000? Or is there any other way to accomplish what I want using my MC3000 charger?

    Thanks a lot,
    Cheers,
    AA Cycler
    I'm no expert but you could try soldering in a voltage dropping resister for the NiZn chemistry to limit the maximum voltage, or maybe a couple of alligator clips would allow you to hook it up.
    It is better to buy a beautiful, expensive, custom flashlight than to curse the darkness.

  27. #3987

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

    Quote Originally Posted by kreisl View Post
    FW1.12 announced on NEWS page:
    http://www.skyrc.com/index.php?route...nt&news_id=192

    i've installed it thru my geman winxp system and premium usb data cable = with no problems whatsoever



    see 'the list' for details on the bug fixes.
    this firmware update is considered minor and optional and useful for limited audience only (like ambitious DEX users), not everyone will want or need it. there are no plans to release it to factory production.

    webpage online download availability only


    I just installed v1.12 from a Windows 10 system without any problems. The instructions state that they have not approved any OS except WinXP SP3 but Win 10 works.

  28. #3988
    Flashaholic*
    Join Date
    Sep 2007
    Location
    MA
    Posts
    2,861

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

    Quote Originally Posted by Sargaso View Post
    I just installed v1.12 from a Windows 10 system without any problems. The instructions state that they have not approved any OS except WinXP SP3 but Win 10 works.
    For some people.

  29. #3989

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

    Quote Originally Posted by StandardBattery View Post
    For some people.

    What went wrong?

  30. #3990

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

    No problems with Windows 10 Pro 64 - beware of losing your settings and programs when updating..

Page 133 of 161 FirstFirst ... 3383123126127128129130131132133134135136137138139140143 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •