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seti5

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Reply with quote  #31 

new batteries from eu.nkon.nl/  . 3 charge cycles . OPUS Charger BT- C3100 v2.2 Final charge aprox 4.500maAh, 4.2v

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I do not know how to add text to add a photo)


cobalt327

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Reply with quote  #32 

The cell may not be authentic. Possibly defective.

retird

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Reply with quote  #33 
So with all the posts to date "What has been accomplished" and "What is it you are searching for @set5"?  

Buck-Boost is not as efficient as Buck regulators and a quality battery is better than a battery of lesser quality.  Seems simple to me but I must be missing something...  no problems with battery life here on my 200's or 75's.

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seti5

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Reply with quote  #34 

I doubt it , sincerely. Also Sony and LG are fake? 


Simplifying : eats batteries and heated.
cobalt327

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Reply with quote  #35 
Quote:
Originally Posted by seti5

I doubt it , sincerely. Also Sony and LG are fake? 


Simplifying : eats batteries and heated.
You are in a better position to determine the authenticity. I'm offering it as a possibility, as there seems to be no consensus... ya me despido.

 
Modbustersecig

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Reply with quote  #36 
Quote:
Originally Posted by dwcraig1
At the red arrow...it is 3.61 volts. This is with a LG HD2. Firing for 5 seconds.
SDNA75 at 50 watts.JPG 


something I watch board temperature you are showing about 30 degrees room and running temperature difference on the board that says a lot about efficiency of the device I'm from the old school. Voltage drop amps increase along with heat and heat not being a good thing on any board just my opinion

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dwcraig1

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Reply with quote  #37 
Oh I see, then it did really well considering it's elevated temperature.
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Modbustersecig

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Reply with quote  #38 
Quote:
Originally Posted by dwcraig1
Oh I see, then it did really well considering it's elevated temperature.
yes I don't word things so well do to how I see it after using mec mods for a while to pull a good battery down to 3.6 I know I am pulling some high amps close to max or better not making fun or trying to be rude to pull LG down like that your going to generate heat

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Any one seen the fire extinguisher I don't believe that's vapor
VapingBad

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Reply with quote  #39 
Quote:
Originally Posted by seti5

new batteries from eu.nkon.nl/  . 3 charge cycles . OPUS Charger BT- C3100 v2.2 Final charge aprox 4.500maAh, 4.2v

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I do not know how to add text to add a photo)




I'm sure those will be genuine, they have a good reputation, but 26650 are not good for high power vaping they have too much internal resistance.  You can see in your post #31 that they sag below 3 V only at 50 W so I doubt that will ever do 75 W for more than a few puff when fully charged.  I think putting current on the plots would help you understand how much the battery is struggling.

You have to open your pics in a image editor program to add pics.


To everyone in this thread:
These Escibe screen caps would be a more informative if they had the measuring bars, when DM is paused just click the line at the point you want to show values for, if you hold shift you can have multiple sets.

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Latest versions of EScribe: DNA 200/250DNA 75
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dwcraig1

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Reply with quote  #40 
^^^^I was trying to do that but when I click on Snipping tool they go away
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txmonkey214

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Reply with quote  #41 
Internal resistence? Makes perfect sense. seti5, I think ETA used 26650's. Left them laying around on a pile of coins, in public places. 
Also, I have noticed that most of the complaints I've seen on the board, across DNA platforms,  are either HCigar, Wismec, or Efusion mods. Can't be a coincidence.
VapingBad

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Reply with quote  #42 
Quote:
Originally Posted by dwcraig1
^^^^I was trying to do that but when I click on Snipping tool they go away
Just hold [shift] while adding the bars, then [alt]+[PrtSc], then past into a post.  Paste into post didn't work as it was too big I had to paste into mspaint and save to disk then add image to post.

Untitled.png 

That is a May 2015 25R at only 3.54 V

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Latest versions of EScribe: DNA 200/250DNA 75
Common problems
cobalt327

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Reply with quote  #43 
His Opus charger will measure the IR among other useful parameters, I have one exactly the same. Have made a log of all my batteries (vaping and otherwise) to keep track of their general 'health'. Point being, it's uber easy/quick to test IR. 
VapingBad

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Reply with quote  #44 
Quote:
Originally Posted by cobalt327
His Opus charger will measure the IR among other useful parameters, I have one exactly the same. Have made a log of all my batteries (vaping and otherwise) to keep track of their general 'health'. Point being, it's uber easy/quick to test IR. 


I do that and it is very good for spotting fakes, I also would recommend a capacity test as well as IR on it's own is not so clear until it goes right up and then you know they are knackered anyway. It varies a bit between batteries but I find a capacity test is always a good test of battery health if you took one when that battery was in good shape.

EG that battery I posted the plot for I measured IR when new as 17 milliohm at 3.65 V and 14 milliohm at 4.2 V, IR is quite sensitive to charge state and probably temp to.  I also have another 25R from the same batch that measured 14 milliohm at 3.65 V and 12 milliohm at 4.2 V when new, so the variance between batteries in the same batch is also quite high.

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• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •

Latest versions of EScribe: DNA 200/250DNA 75
Common problems
seti5

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Reply with quote  #45 
Thanks , but I already sold the mod.

I keep my DNA200
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