Is USB charging BRICKING ALL my DNAs?!

[vapesmooth234]

It started with my first DNA,  a wismec reuleaux DNA200 with 3 sony browns authentic. I only ever charged it via USB, after about 17 months the readings on those cells were perfectly similar and I never even rotated them once - I checked them on a cheap digital meter and a $500 analog meter and all 3 were the same readings which means it's safe and balanced, which is good, but then it would no longer USB charge in about 1-2 years. I asked a million questions here and factory reset it, new batteries etc and it never was fixed.

 

Then I got a Hgicar VT250s DNA 250 which can do dual 18650 (167W?)  or triple 18650. I only ever USB charged that MOD too, and only ever used genuine cells and I vape gently I only vape like 5 wrap single coils at like 16 Watts. In about 11 months it's bricked too, giving CHECK BATTERY error, tried everything suggested here no fix though, paid shipping for warranty and it was sent back with the same faulty chip (thanks!) which bricked a month or so after I received it back.  

 

Then I got a Hcigar Vt75 nano DNA 75 single 18650 genuine LG Brown, in about 1.5 years it's giving problem TOO HOT (even though it's not hot), tried factory resetting etc no fix, it seems to magically fix itself since I plugged it in to charge the other day but it'll go for a day or two sometimes still giving the TOO HOT error no matter what I try, new builds, different tank, cleaning the entire insides which were already clean and juice-free).

 

 

 

So now I'm thinking no more DNA for me. Maybe yihi? The only reason I chose DNA to begin with is because they're supposed to safely USB charge multiple cells via USB (I just don't want to bother with opening and changing cells and baby sitting batteries on charges etc, when I USB charge the DNAs I'm usually at my PC (using a powered HUB BTW not power from my PC's PSU), which yes the DNAs seem to safely USB charge with  no dangers but it seems to just fry the Fking boards in about a year.

 

I was about to order a new DNA75 chip for my TOO HOT VT75 Nano but I'm guessing it'll also give me troubles.

I might get a DNA 200-250 C etc (newer color chip) in hopes that they've fixed this problem.

 

 

if I order a 75 (non color) chip from protovapor, it's only $37 shipped vs direct from evolve is like $55, but do I get the warranty with the protovape chip if I swap it out with the TOO HOT one in my VT75? $37 for a new chip every 1-2 years isn't too bad but I am a bit concerned about USB charging these anymore if it's frying the charging circuit apparently even though I haven't had any dangerous stuff happen ever. I pass through vape too and everything.

Do you think it's worth a shot asking evolve if they'll re-warranty the VT250s I paid shipping for warranty for that they didnt' even change the board out and it bricked again a few months after I received it?? It's been over a year and was just tucked away since then.

 

Edited June 21, 2019 by vapesmooth234

[dwcraig1]

Evolv will warranty the new board from Protovapor with your installation.

On your VT250S, ask them here: https://helpdesk.evolvapor.com/index.php?a=add&category=1

Was the same powered hub used to charge these, possibly a problem, worth a mention.

[zark]

За один год эксплуатации, Triade 250с с аккумуляторами Samsung Q30 (зарядка только через USB), не было ни одной проблемы, напряжение на батареях +/- 0,003 V. Однажды была проблема с перегревом платы при Vaping во время зарядки, после чего я сделал анализ корпуса в Escribe и больше это не повторялось.

Балансировка батарей при зарядке через USB идеальна и даже дорогие зарядные устройства сторонних производителей дают более посредственные результаты.

[vapesmooth234]

1 hour ago, dwcraig1 said:

Evolv will warranty the new board from Protovapor with your installation.

On your VT250S, ask them here: https://helpdesk.evolvapor.com/index.php?a=add&category=1

Was the same powered hub used to charge these, possibly a problem, worth a mention. 

I tried everything man, I tried multiple outlets, I charged the batteries in a Xtar quality charger, it just give CHECK BATTERY in 2 cell mode or 3 cell mode it just shows nothing on the screen basically just flashes 'DNA250' or something like that

[vapesmooth234]

14 minutes ago, zark said:

За один год эксплуатации, Triade 250с с аккумуляторами Samsung Q30 (зарядка только через USB), не было ни одной проблемы, напряжение на батареях +/- 0,003 V. Однажды была проблема с перегревом платы при Vaping во время зарядки, после чего я сделал анализ корпуса в Escribe и больше это не повторялось.

Балансировка батарей при зарядке через USB идеальна и даже дорогие зарядные устройства сторонних производителей дают более посредственные результаты.

^ Translates to

In one year of operation, Triade 250c with Samsung Q30 batteries (charging via USB only), there was not a single problem, the voltage on the batteries was +/- 0.003 V. Once there was a problem with the board overheating when Vaping was charging, after which I did an analysis corps in escribe and this is not repeated.

Balancing batteries when charging via USB is ideal and even expensive third-party chargers produce more mediocre results.

[vapesmooth234]

^ and I agree, the dna DOES charge very balanced and as good if not maybe better than a dedicated nitorecores or xtars but it seem that mine are always frying after about a year of USB charing. I'm guessing even a lot of DNA users are using external chargers and so this problem isn't as obvious?

[dwcraig1]

Does Device Monitor in EScribe show any of the cells above 4.2 volts?

[zark]

15 минут назад, vapesmooth234 сказал:

Я предполагаю, что даже многие пользователи ДНК используют внешние зарядные устройства, и поэтому эта проблема не так очевидна?

Пользователи ДНК 250с с которыми я общался, говорят, что зарядка через USB очень хороша и о ни быстро отказались от внешних зарядных устройств

[vapesmooth234]

21 hours ago, dwcraig1 said:

Does Device Monitor in EScribe show any of the cells above 4.2 volts?

YES!

with two Samsung pink 30Q 3000mAh 3.7Vs, it boucnes around a bit but stays at:

Pack: 7.56,

cell1:  2.34V

Cell2: 5.22

Dual 18650 mode: I press fire get CHECK BATTERY and battery bar is empty but %100 charged on an external, barely used these cells,  I press fire it says CHECK BATTERY if connected to escribe, but if i disconnect from escribe and press fire it say EVOLV DNA250 for as long as I press fire.

 

3 cell mode =   pack = 11.78V , cell 1 =  2.34,  Cell2 = 5.22,  Cell3 =  4.22V

 

I got these cells right here:

https://www.ebay.com/itm/SAMSUNG-30Q-Rechargeable-Battery-High-Drain-Flat-Top-3-7V-18650-VAPE-LOT-MENU/172954891880?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

 

evolv DID grant me a rewarranty for this but maybe it's the cells?

The other two batteries I was trying were 2 sony greens that when I put them on an external Xtar charger one says NULL and won't charge. The other seems fine. I think I tested with these Sonys before but I did also just test with the sansung 30Q pinks and  got CHECK BATTERY.  BTW, the Sonys have some strange markings/burnings or something shown here but people are saying there that it shouldn't be a problem but I won't be using these cells again and will recycle them now that I see it saying NULL on the Xtar:

https://www.e-cigarette-forum.com/threads/what-happened-to-these-batteries.911913/

 

 

 

[dwcraig1]

When ever there is a cell with an impossible voltage reading like the one that is 5.22 volt the battery management IC has gone bad.

[vapesmooth234]

thanks craig, if you say so,  I guess so .

At least it didn't blow up or anything.

 

I'll mail it back to evolve so they can take a look. I might slip my DNA75 in there too which sometimes gives me TOO HOT error for no reason and won't fire.

 

I'm probably NOT going to buy another DNA250 board to replace this one if it comes down to it. As much as I loved this mod which is able to do dual or triple 18650 mode and is TINY for a dual 18650 mod. I think USB charging is killing the IC circuit as you said.

 I don't know if they'll replace the board this time (they apparently should have the first time I warranty'd it and it bricked again a couple months later). I'll link this. I just hope they care enough to try and prevent this from happening with future boards - that's why I'm going to buy a DNA250C next and hopefully the IC will never fry or anything bad happen.

 

 

[vapesmooth234]

I received my DNA250 mod back from evolve warranty and it's working great so far. It was giving CHECK BATTERY and not firing no matter what I tried.

 

I asked them if they can tell me how it was fixed so I can post it here in case others have same issue. I said I don't think the board was replaced. They said there's no notes from the tech and said they think the board was replaced and to check the puff count. So are the red stars the total puff count? 681 seems a lot for I only ran about 10mls of juice with it since I got it back, but I just noticed I tap fire a lot even for just one hit since I don't have a power ramp or TC I tend to tap it up to temperature and may tap fire like 5 times for just one actual puff.

 

 I originally said I doubt the board was replaced , I didn't tell them because I can see the screen is still a bit dirty/blemished on the edges but maybe they kept the old screen and just replace the board?

 

ALSO when I hit GET INFORMATION in escribe it takes me to a URL that says this: I bought the MOD January 2018. But that's still a year after the date this shows it was programmed, so that's a long time and would be an extra 1.5 year to today if it's actually a new board installed, so IOW maybe they're both from a big batch made Jan 9 2017 (if there's indeed a new board installed)?

 

___________________________________________

Production History

Tuesday, July 2, 2019, 3:18 PM @ Hudson, Ohio, United States
	Mod tested A+ Battery tested (3.65V min. cell, 0.9A min. charge): 3.8V cell 1, 3.8V cell 2, 5.166V USB Firing tested (100W for 5 seconds): 97.56W
Monday, January 9, 2017, 4:34 PM
	Board programmed

 

 

 

 

Edited July 13, 2019 by vapesmooth234

[dwcraig1]

Looks to me to be a new board.