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…….
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.
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!
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.
-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: