Do the fans wear out quickly? Where did you get them?
I saw a video a month or so of a guy replacing one,looks kind of easy, even for a guy like me!
EDIT: I should have researched b/4 I ask questions!! I will guess you get them at Fasttech! ~$2/each.
I think I found them at Bangood—Nothing to changing them at all—lately I prop up the fan end on something to give better air flow from underneath
Yes,the Supernight is doing a Super job,test #3 to start in an hour or 2!
I can get a picture after test #2 is complete.
Here is the link to purchase:
Here is the Power supply per Dr. Gausse’s request.So far so good, Test #3 started,verdict will be in tonight! :sunglasses:
I can’t seem to find the ‘BUY IT NOW’ button to click on………… :person_facepalming: … Help……… 
EDIT to ask: ……. Wolfdog, is this the Ebay seller you got yours from?? katewu20152011
OK, thanks for that info. That may be a good idea too about waiting a bit. :+1:
I ordered Two different Power Supplies just in case for back up. One Friday night,that will not be here until Saturday!Of course the Supernight which arrived in 2 days!
Durability and longevity is yet to be determined,so far so good on day #2! I expect my Third test result to follow suit. That should be done by early evening b/4 CAPO and I go on our hike.
There is another way to look at getting one NOW. If your doing a lot of capacity tests the worst that can happen is you lose $6.99 if it fails! On the other hand you can let Wolfdog be the Guinea Pig and see how durable and reliable it is. Then again, I may only run One or Two more CHARGE/TESTS in the next few months!
Confused?! YOU MAKE THE CALL! :person_facepalming:
Yep Woldog, so far you have been a good “Guinea Pig” with some good results. … :+1:
I am glad this appears to have been the problem. Kudos to you & your testing.
But me confused? Not sure what you are getting at…. but never in your wildest dreams am I confused about this.
And be most assured…… I will make the call when I get ready. Whether that be in 5 minutes or 5 years. It is not a though this is life or death ya’ know…….
ALL Three of those are Used.
OK,It is your fault for recommending to me the LOW quality one!!
I am not worried about it. I have a spare if it fails and can always get a better one if they both fail.
It’s all good Wolfdog…. even if it does fail, you “took one for the team”. … :+1:
I’ll be the first to contribute to the “Reimburse Wolfdog Fund”…….
……………hopefully that will go better than the “Send ’teacher’ to China Campaign” has gone. 
No big deal. I chose to get it,it will be fine.
I I ever get a better one, It will be brand new! These are not cars we are getting where you know how many miles are on it and how old it is! That is my thinking………I would not want a used one,Hopefully these TWO classics I have will last a while!!
I am going to do a CRUDE temp. check when the batteries are around 4.0/4.10v w/ my maintenance thermometer probe!
Right now the batteries are @ 3.58v. They have a ways to go.
It is 84F outside and 77F in my condo. The SUPERNIGHT IS @ 88F.
I agree that is fine, but the batteries are not fully charged!That was @ 3.58v.
I just checked, it is @ 3.75v now and temp is 94F.
I do not expect it to go over 103F b/4 its done,just a guess. With my heat sink invention I am positive[just by feel compared to now] it won’t go past 88F
I will measure that next time I charge 4 X 18650 @ 1AMP.
-Charge/Tests for Opus BT-C3100 2.2
-Can the failures discussed earlier in this thread be reversed?
-ALL these tests are done with 4 x 18650 3400mah protected batteries that are discharged at 1Amp.
My Third test is almost complete. I feel confident to post this now because that test is well past the”Stage of failure” which ALL happened ~ 2.80v of the re-charge cycle.
My Three prior tests had ALL failed shortly after the discharge cycle transitioned to “Charge Cycle”. At that point the charger briefly shut off,reset and then defaulted to 500mAh charge rate.Needless to say ALL my capacity info. was wiped out!
HKJ and Gausse163 felt that the SMPS was most likely the culprit based on all the information provided by me and others and from their knowledge and experience!
Yesterday, April 10th I received my First of Two SMPS. It is 12V/5A and should be more than sufficient according to the gentlemen mentioned above.
I did Three tests with Three different sets of batteries. My First test were the batteries that failed Three times in a row with the ORIGINAL SMPS.
Ladies and gentlemen,lets see the results!
TEST#1-Orbtronic 4 X 18650 3400mAh- SUCCESS! :+1:
TEST #2-Keeppower 4 X 18650 3400mAh-SUCCESS! :+1:
TEST#3-Soshine 4 X 18650 3400mAh- SUCCESS! :+1:
The transition phase from discharge to charge went very smoothly without a glitch!
In conclusion, I think it is safe to say that the “Culprit” was the Original SMPS which could not seem to handle charging 4 X 18650 3400mAh @ 1amp right after transition to “CHARGE” when the batteries were ~ 2.80V and probably needed that extra “spike” of energy but could not deliver!
I want to thank Professor HKJ, Dr. Gausse, Teacher and ALL the other Pupils that made this possible in helping to solve this crucial energy crisis! :sunglasses:
My new SMPS never exceeded 94F.
Keep in mind this is the surface temperature at the warmest point. I do not have equipment to measure internal temperature.
This gives a pretty good idea,and w/ Mr. Heatsink I believe it will not be much more than 80F. I will post that when I test it.
The real improvement will be w/ my Fenix ARE-C2. I am betting[just by feel] that it will be at least a 35 degree reduction in heat w/ my heat sink.
Hi…my 1st time here……please be gentle 
I was wondering if anyone has had any experience ordering up the Opus BT-C3100 V2.2 (has been rebranded as a Zeepin Opus….) from China. I recently did (at a reasonably good price) and was curious if anyone can speak of their experience (quality, reliability, etc.) and/or have a way to confirm (or deny) the product is a rebranding and not a knock-off/fake. Labels are easily created. Thought maybe something etched or silkscreened on the circuit board might be an indicator.
Thanks in advance….cheers….
Welcome to BLF! :partying_face:
I never heard of the Re branded version. Maybe someone else has and they can help you.
Maybe if you post some pictures that will help us determine if it is a fake?
In regards to the testing that I have been doing w/ my NEW SMPS.
As I indicated before, ALL of my Six tests[3 Failures/3 successes] were done the same way. That is the batteries were put in around 4.10/4.12v for the Opus to top it off/discharge then charge back up.
I thought I would do the ENTIRE test in the Opus to make sure it could handle that extra session of charging, even though that part had nothing to do with the failure.
So I put 4 X 18650 Samsung 30Q FT in. All @ 3.64v. The test was another SUCCESS!
The only thing that is yet to be determined is the durability and longevity of my $6.99 SMPS! I do have an $8.38 SMPS coming Saturday for back up!
Are you talking about Zeepin? On the posting on Aliexpress, depending on which you choose (color and US or European) it either says Zeepin or Opus on the upper face of the product. Boxes look about the same with what appears to be a slight option in color (gray vs. blue/gray???).
I posted a similar query on slickdeals (where the original deal was posted) and someone mentioned that Opus is already a branding of the product, that Opus buys from OEMs and puts their label on it. I suppose that would make what I ordered a rebranded rebrand, so to speak.
When my unit arrives (which should be sometime in the next couple of weeks) I’ll take a pic and post it. It will be interesting to get feedback on it.
Also, Aliexpress claims full refund if the unit is determined to be a fake (wonder if that would include a fully functional knock-off…hmmmm).
Thanks for the welcome and the offer of help. Seemed like this was a good place for feedback (even tho the forum is about “budget lights” (Big grin :laughing:)
Cheers….