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Thread: Opus BT-C3100 2.2-Comparison-New and Exchanged.

  1. #241
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by Capolini View Post
    Just a Heads up for anyone who has this charger.

    I had Three[3] FAILED attempts when I was doing the CHARGE/CYCLE test which is done for capacity results. All Three[3] failed shortly after the transition from Discharge to charge cycle. The charger briefly shut off, reset and then was defaulted to 500mAh charge current. This was w/ 4 X 18650 3400mAh discharging at 1 amp.Needless to say ALL capacity info. was lost.

    This is in the process of being resolved on a thread on BLF that I am involved in [...]
    Here is a link to the starting point in the BLF thread on the BT-C3100 power supply overload problem
    Last edited by Gauss163; 04-11-2017 at 10:14 AM.

  2. #242
    Flashaholic* ChrisGarrett's Avatar
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by Gauss163 View Post
    Here is a link to the starting point in the BLF thread on the BT-C3100 power supply overload problem
    My BT-3400 v. 2.2 came with a bum wall wart. It would shut down charging 4 cells at 1A, but worked perfectly charging them up at 700mA.

    Robert at first sent me a 2A replacement wart and then a 3A wart and I haven't had a problem outside of that first week.

    Chris
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  3. #243
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    @Chris What brand/model was the replacement SMPS? That info will be helpful to others with the same problem.

  4. #244
    Flashaholic* ChrisGarrett's Avatar
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by Gauss163 View Post
    @Chris What brand/model was the replacement SMPS? That info will be helpful to others with the same problem.
    He grabbed a used one he had on his bench, because I wanted him to test it out before sending and I just didn't care.

    Let me look, I have all three here!

    First one 3A: No name: KYT120300BV, kind of has a rounded, contoured case with with embossed lines on the back.

    Second 2A: No name: KYT120200BU, same contoured case with lines.

    Third 3A: APD: Asian Power Devices: WA-3612U.

    I'll tell you what, I now have some spare wall warts for my Xtar chargers!

    Chris
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  5. #245
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    The third was the charm, right? APD = Asian Power Devices is likely much better quality than the KYT = Shenzen KeyingTong Electronic Tech. The APD is what Opus originally supplied. Looks like they switched to a cheaper SMPS in later versions. See here for labels and more.
    Last edited by Gauss163; 04-11-2017 at 03:50 PM.

  6. #246

    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by Gauss163 View Post
    Here is a link to the starting point in the BLF thread on the BT-C3100 power supply overload problem
    The link says page not found.

  7. #247
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    ^^^ The link works fine for me. Maybe it was a temporary problem somewhere along your path.

  8. #248
    Flashaholic* ChrisGarrett's Avatar
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by Gauss163 View Post
    The third was the charm, right? APD = Asian Power Devices is likely much better quality than the KYT = Shenzen KeyingTong Electronic Tech. The APD is what Opus originally supplied. Looks like they switched to a cheaper SMPS in later versions. See here for labels and more.
    I don't know much about the manufacturers, but over the years, I've had them crap out on me, most recently a dinky 7-25vdc for a Dirt Devil hand vac, so I realize that they're cheap and probably don't have 50 cents worth of materials in them.

    The OEM Opus dud still works well at 700mAx4, so it can be used with other devices.

    Chris
    Last edited by ChrisGarrett; 04-12-2017 at 10:21 PM.
    Convoy: S2, S2+, M1, M2, Fenix: P1D, PD32, HL30, ET: D25C Ti, SF: 6P, ZL: SC-600, Klarus: P2A, Jetbeam: BA-20, Icon: Rogue 1, L3: L10, Xeno: E03, ShiningBeam: I-Mini, Olight: i3s, SWM: D40A, M11R, V11R, Maglite: 6Ds, MMs, Solitaires, LaCrosse BC-700, Maha C-9000, XTAR VP2, MP1S, XP1, MC1+, WP2 II, NiteCore i4, v2.

  9. #249

    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by hahoo View Post
    that opus is second to the mc3000
    its a great lil unit
    ive tried them all, and it was the best till i got the mc 3000
    you should get a mc3000
    its so much more flexible than anything out there right now
    beauty is you can set your cut off voltage to what ever you want
    ive got mine set at 4,23, and they will rest at 4.21 after an hour or so of coming off
    you can charge up to 3 amps , for ALL 4 CHANNELS if you need to, not just 1 amp
    youll find out how much fun battery charging can be if you get it


    +1 on this, can't wait to receive my unit!

  10. #250
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    Default Re: BACK TO BASICS-SIMPLE,EFFICIENT AND DURABLE!

    Quote Originally Posted by roadkill1109 View Post
    +1 on this, can't wait to receive my unit!
    Good luck w/ your MC3K. There are some good threads where you can post your results.

    Here is the most popular and long lasting one,,,for about 3 years.

    http://www.candlepowerforums.com/vb/...arger-analyzer
    Environment molds a person. Perseverance changes them. ,,,Capolini 10.21.2003

  11. #251

    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    I got a opus v2.2 a few days ago , when charging I set the ma current at 500 for AAA'S & 700 for AA'S , it charges fine & the ma current is what it's supposed to be but when the battery's get close to being full I noticed the current drop to about 250-300ish for the AAA'S & about 400ish for the AA'S ,is this normal behaviour ?
    I first noticed this with some older AAA led lenser battery's ( the manual says its normal for old high internal resistance batteries) but I've noticed it does it on new eneloops , I was worried that because the ma current gets close to 200ma that it might not terminate but it does terminate fine.
    Is this current drop towards the the last stages of charging acceptable behaviour ?

  12. #252
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    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    ^^^^

    That is normal and it is suppose to do that for all battery types. The last phase can take the longest on some chargers and this is when the current is reduced.


    • Can be set to 3.7V LiFeO4 charging or 4.35V high voltage li-ion charging by a switch on the PCB. Default li-ion charging mode is 4.2V CC/CV.



    EDIT: You will find a lot more answers and explanations in HKJ'S review below:

    http://lygte-info.dk/review/Review%2...V2.1%20UK.html
    Last edited by Capolini; 04-17-2017 at 09:10 AM.
    Environment molds a person. Perseverance changes them. ,,,Capolini 10.21.2003

  13. #253
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    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    Quote Originally Posted by Nev View Post
    I got a opus v2.2 a few days ago , when charging I set the ma current at 500 for AAA'S & 700 for AA'S , it charges fine & the ma current is what it's supposed to be but when the battery's get close to being full I noticed the current drop to about 250-300ish for the AAA'S & about 400ish for the AA'S ,is this normal behaviour ? [...]
    Are you sure it is V2.2? Iirc, HKJs reviews showed that versions prior to 2.0 used a CC/CV-type algorithm for NiMh, which reduces the current at the end. But starting at V2.0 they switched to a dV/dt algorithm.

  14. #254
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    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    Environment molds a person. Perseverance changes them. ,,,Capolini 10.21.2003

  15. #255

    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    Quote Originally Posted by Capolini View Post
    ^^^^

    That is normal and it is suppose to do that for all battery types. The last phase can take the longest on some chargers and this is when the current is reduced.


    • Can be set to 3.7V LiFeO4 charging or 4.35V high voltage li-ion charging by a switch on the PCB. Default li-ion charging mode is 4.2V CC/CV.



    EDIT: You will find a lot more answers and explanations in HKJ'S review below:

    http://lygte-info.dk/review/Review%2...V2.1%20UK.html
    Thanks, that makes sense.

  16. #256

    Default Re: Opus BT-C3100 2.2-Comparison-New and Exchanged.

    Quote Originally Posted by Gauss163 View Post
    Are you sure it is V2.2? Iirc, HKJs reviews showed that versions prior to 2.0 used a CC/CV-type algorithm for NiMh, which reduces the current at the end. But starting at V2.0 they switched to a dV/dt algorithm.
    I ordered the 2.2 & the box says 2.2 also the screen on startup says 2.2 ,
    I think it's probly a 2.2.

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