[Place to share Battery Test Results.]

Kagaen said:

Hello every one I am Planning on a my first Regulated build and want to try and steer away from the normal 18650 and 26650s and have been doing some research on different LiPO batters 3S 11.1V and have come across some and i understand the math with every thing but i would like to hear from the community on what they think if High C-Discharge is better with a higher mAh looking for long life and here is a sight i just came across that I think if the money was present for some of the high mAh and also high C-discharge which in turn means more amps http://www.maxamps.com If any one has used battery from here please let all of us know your experience with the company and with the battery or just let me know if its worth the money out Thank you and have a great day/night. 
     
       -----Kagaen

You just put a link to YOUR STORE! Anyine got cvs for 3 vtc4?

[SDNA 75- occasional errors.]

Mine (wood paint finosh )has unusal pike un temp before stabilizes temp 6-18c spike is short lastimebut has happened on all atty ive tried, apatently the spike in tc is not normal.....

[Smy dna 75 not great]

engmia said:

Yes, considering this happens over a several different atomizers, either a cheap/bad 510, bad wiring or any of the other reasons I listed. A person in the other thread mentions their 510 are alright (I don't have any personal experience with the SMY brand) but it might be problem with your particular device (hey accidents happen in mass produced devices).

To further help, what atomizers did you test on the device?

Also like VapingBad said, it's not forbidden to mention other companies, but it's important to distinguish between Evolv board issues and manufacturer specific issues. I'm a big fan of Evolv boards, they are extremely accurate (watch Phil Busardo reviews, he tests the devices electrical output and puts out extremely useful charts), innovative and now customizable. Now Evolv boards have had problems on their own but constant improvements and addressing of said problems gives a pretty amazing product on the market right now. Many times other companies do mistakes and Evolv take the blame for it, OR as you said, try to copy Evolv boards which is obviously a horrible thing to do.

Imagine if you gather some money and spend 2 years at home designing an atomizer. Let's say you get a production cost of 20 USD and decide to put the atomizer on the market for 50 USD because on top of manufacturing and distribution, you need to pay for the 2 YEARS you spent designing the atomizer. Then next morning you wake up, you see the exact same atomizer you designed, using the exact same materials, looking the exact same way. Only some other company is selling a "clone" of your product for 20 USD (just as much as you manufacturer it). How can they afford it? Well easy, they produce bigger quantities so manufacturing price drops and they didn't spent 2 years designing the atomzier, they haven't paid someone's salary for that time and everything, so they don't need to account for that in the final price.

Competition is healthy, but there is quite a fine line between taking cues and inspiration from other products (which is normal and illogical if you don't do it) and simply intellectual property theft and cloning and undercutting of devices.


You mention the internal resistance is set to 0.002 which is below the norm for other devices. It doesn't make sense that SMY have figured a superior electrical connection and perfect component composure for less internal resistance and managed to sell it for less money (let alone I don't see anything like that going on there).

Do you think there's a chance the mod just isn't properly configured?

[b]EDIT:[/b] Vaperkarloz check out this thread that I just noticed. It seems the issues you are experiencing are not new for the SMY model and reported by other users. I suppose if you search you might find other useful threads on the forum as well. A bad connection and random errors like this will always give you flaky resistance and bad experience in temperature control.

Thats, i know that specially this board cloning is notorious... what woulf be the proper configuration? Spike happened aswell in default .0016 electrical resistance someone mentioned it was .0002 Have used ud bellus goblin mini (first edition) and tornado nano.

[Let's see your 75's!]

dwcraig1 said:

The 510 on the SMY SDNA75 I consider one of the better ones of the mass produced mods. It is my only DNA mod with a 0.002 ohm mod resistance. The others are 0.004 - 0.005 ohms
There is one problem that could easily develop with it and that is they soldered the ground output wire to the nut that holds the 510 body into the case. If the nut becomes loose problems arise.
It's certainly easy enough to check and correct.

Then is it the experimental firmware apk and not recommended one causing this? Hwvent tried ungrading the mod apk

[Let's see your 75's!]

Aparently they dont even know how to put a battery tray, i just don't get why for this thing. Btw spike is not long lasting as u can see in prevous pictures, stabilizes after it spikes.. Edit:seriosly on the battery sled, the syandatd is opposite and has been since before i was born! Why do that??

[Let's see your 75's!]

engmia said:

I was going to post bad comments about other devices, but now you made me feel bad.

I don't see where you're going with this. As far as Joyetech deleting your posts go, I hope you can appreciate the difference in attitude between the companies and have a hard look before you start praising other companies on specific forums. You were already asked something once, please keep on topic.

Let me try my best to help you. I've owned a DNA board for over an year now (just recently upgraded to DNA 75, my first one was DNA 40) and I can assure you what you're experiencing is not normal. It could be caused by a couple of things:

1. Loose connection between the atomizer and 510
2. Bad soldering and wiring from the 510 to the board
3. Not properly configured device/board 
4. Bad/not intended for TC Atomizer design (for example current passing through a string)

TC is an extremely sensitive technology in regards to ohms, and even .002 ohm difference can make a big difference in the temperature of the vape, especially for wires with lower coefficient of resistance (like stainless steel). Now this might seem like a bit too hard have all of those different components perfectly aligned, but in reality it's not that hard. If your box mod and atomizer are properly designed, built, connected and configured you shouldn't experience a change and drifting in ohms. That's why Evolv recommends not locking ohms -- the option is there if you still need it, but if you need to use it one of the above listed factors is not right and you're not getting the experience you should have. You should rather focus on addressing the issue, then using locked ohms, since if you resolve it your experience will always be better.

You can test your atomizer connection using Escribe's Atomizer Analyzer. You should also checked if the case analyzer has been ran and properly configured for your mod, internal resistance, battery settings and wire profiles (especially coefficient of resistances). The SMY DNA 75 is one of the cheapest devices on the market with a DNA 75 board which usually comes at the cost of quality control, it's safe to assume that one of the above is an issue.

Devices with faulty profiles, wrong values for the case and generally wrongfully configured from manufactures is not something new. You can find plenty of threads around the forum of people compaining the profile their device came with doesn't work properly (NOTE: those are not Evolv's default profiles, but the OEM's modified profiles -- SMY in this particular case). Phil Busardo has extremely comprehensive reviews on the board and you can generally rely on him for the most extensive reviews on devices. 

If you have any more questions, please sent me a PM or start another thread here.

I do apologize for the off-topic. 

I think you're right, tried multiple atomizers, so it must be a cheap 510 (just like everything ive experienced with my sdna75 is that they cut corners everyware so bad 510 is possibly the case, at least i got a triade dna250 coming, no dna250 forum though), im new to evolv chips and the community, ill leave other companies aside. Other than the fact that a manufacturer told me they cloned dna75 chip and call it dna 2.0 bad clone attempt (seller kept on insisting i buy a sample..nty) but still, not proffesional and i think that should be made known(i like how the chip verification works for dna tbh, even gives you board production date) I cant fix the spikr so it has to ve a cheap smy component, just like the bad casing...dunno why daniel praised it on tutorial its actually a bad 510.... or where else could they had messed up? Geekvape vt cigar nano and vapethink where all in same sdna range, having those wire presets got me into buying a bad mod i suppose...

[TC & Power mode read SS ohms different]

mactavish said:

Just curious about this behavior. On both my DNA200 and DNA75 devices, I have a Stainless Steel notch coil reading at 26 ohms in TC mode. Ohms never locked and stay consistent. With the Atty at room temp, when I switch the mod to "power mode", the ohms immediately show as 29 ohms, as I puff the ohms rise to .32 ohms. If I put the mod down, let it cool, the ohms go back down to .29 again, but never the .26 ohms that I see when in TC mode. Wondering why I am seeing two different initial cold ohm readings, depending on being in TC or Power mode?

Use escribe to put the old resistance locked on escribe, just dont lock with kanthal

[Let's see your 75's!]

VapingBad said:

As usual I want a small and tough mod with tool less battery changing. I used the same 3" x 1.5" alu box section I have used with DNA 30 and DNA 40s since this board is 5 mm shorter than the 200.  I brazed the alu together and filled the front of the board mount holes with it instead of using epoxy.



There is no room to use any off the shelf battery connectors so I mad some from a Provari V3 spring and some circuit board, I bridged the circuit board the -ve spring is soldered to to the Evolv 510 connector.  I had to make a spacer for 510 from a thick ss washer to get clearance on the inside, not the prettiest, but I just can't get the box section in the required size.  I tapped a thread in the box to hold the 510, again there is just no room for a nut in there.


+ve is a thin bit of Cu on some more circuit board.


I also soldered the board mounts I made from Cu tube to the board to improve cooling, grounding and make fitting easier.


I made the buttons from shelf pins and all the wiring is 14 AWG silicone insulated.



Finished dimensions are 82 mm x 38 mm x 22 mm including the 510, the main box is 75 mm high.




TBH it was a little bit of a rush job and the 510 is about 0.5 mm out, it still took days of labour with the basic tools I have.

This one is sick, get a logo lazer engraved and custum paint, could look even sicker than anything else.

[Let's see your 75's!]

VapingBad said:

I suppose I am the "moron" who kept insisting not to lock res, misquote, locking res stops DNAs working as designed, will not be as accurate as not locking and should not be done by default.
 
Personally I think you have a build, connection or mismatched wire profile issue.

Please stop posting extensively about other devices, this forum is for people to discuss DNAs there are plenty of places on the internet to compare products.  I am not saying never mention other devices, but it is too likely to start arguments and attract negative comment about those devices and this forum is not here to criticise the rest of the market.

Thats what i thought when i first got device, two days into using it i realized locking was a must the no locking is probably a kanthal coil thing. You have to lock it. Sure gona sell that junk anyways, ordered a red triade dna250. Back to topic as far as ive seen be it single strand guage or clapton ss. The resistance needs locking at room temp. Ir you wont have a consistent vape specially with the weather. I was wrong at first with the no locking crap, i never got a dna200 and just had 75 for some 3-4+ weeks(used it heavyly like 80 cycles on cell so far). watch daniel tutorial tho Edit: its anoying when joyetech deletes the post every time on fb page, sorry for venting here. Meh this is as accurate as my reader but gives me to two exta decimals... ohm meter is useless now... if only the device could wind coils and make claptons, wouldn't need rest of items! I actually like how it works with the cells, drops voltage to provide the wattage. It pretty much does with a full battery 30a cdc on vtc5, mooch tested it and was specifically commenting that vtc5 only does 30a cdc at 3.6 v or under. Perfect for this one. Btw that's my shitty Sdna75 case. Still working on getting a parallel shell for the chip. Although case is sturdy so idk

[Let's see your 75's!]

Man just triend power mode for nano stock chip coil (was using rta) and well good its patentented because imo i prefer all the chinesse piwer modes, this one takes a bit to provide set power. Never seen that wismec ijoy elef kangkxin smok/kapoo innokin all provide straight power. I dont know why patent a bad power mode while the tc mode is kinda on par with fsk slice chip as long as u lock in tc (some moron kept insisting not to resulted in bad flavor and burnt wick, i knew it wouod happen from experience but new to dna chips) can't they fix this, don't mention the preheat in kanthal hole its an ijoy chip coil. Evolv should have preheat in no temp mode, wismec did it(althout they have no preheat on tc modes, its evic vt 60w style tc, theve kept it since that mod, don't blame em, mine was first sub ohm or tc kit it broke and was replaced on warranty (they improved the board second mod had 2 T's followed by number first had one T and showed old firmware version, feature was disabled on updated mods) 23w is 48w on kapoo mini. Still they all start firing at set wattage be it the exact one or not, there were plenty dna boards before dna40. And the power rwgulation is bad so far rms watts on fsk is best. Bit lagging before cheap chinesse chips is kinda something you don't expect from a company tjats supposed to be 'one of the best'

[Vtc5 cvs?]

Aparently they made my board july 21 2016 so 3 months between that and me getting device, not bad Ive checked my serial code 3 times so far...meh this time it was funny to see that the site said it had been checked 2 times before, no duh i did that...

[Vtc5 cvs?]

Anyone got n90 omega wire cvs?

[Vtc5 cvs?]

My mean is 22.71 after a total of 233535.49mWh

[Latest DNA75 FW]

The early firmware is not even the official latest release and no wonder why the preheat is way weaker than they expected i guess

[Turn off option?]

Dna40 powers off which kinda made me frustrated when i got my sdna75 and there was no power off like dna40. Already changed all profiles and dont have to see that portuguesse guy in my screen. His watts mode is ni200 wire, waste of material slot. Power mode and old tc(has preheat enabled aswell) are identical lol! Would be great to have the off option again, its probably pretty simple code too, just have to wait for evolv to release an official firmware. Still not completly confortable with the system so not messing with it. (Wismec firmware was a walk in the park to mod, studied electrical and computer engineering technology+psychology)

[preheat kanthal dna75 (2022) Just use Boost Punch]

I actually found best consistent vape with dc ss316l clapton 26/32 with locking the resistance, use escribe to modify it, using the other profile unlocked then in morning fire and lock compare on escribe and what worked best was tweaking the last 2 points on escribe, always lock in tc or gunk will mess up the vape quality with inconsistent resistance. Tried the non locking and had to constantly change temperature. Don't have to do that when locking it. Btw managed ni80 tc accurate to ~2c as long as .000X is accurate, accurate to .00X ull get a 10c variation but not if you have the fourth number nailed. And yes, lock it. Vaporflask dna40 always got the ni200 resistace on point and kept it steady.

[preheat kanthal dna75 (2022) Just use Boost Punch]

Then again i was trying the tornado chip coil (kanthal) otherwise i use ss(specially in mech mods) the kanthal taste is disgusting

[preheat kanthal dna75 (2022) Just use Boost Punch]

abraxas said:

i have my doubts

Dont forget to lock ohms at 20c. Then go on escribe the .000X number is crucial. Better than the chinesse chips having a hard time to .000 not fsk ohm slice .0000001atty resistance but as long as u have the 4th digit right it should work, works for me.

[Turn off option?]

Can there be a turn off option in the next firmware? Also how are peoples experience with the the 'testing' firmware update?

[Pass-throigh vaping?]

Kinda explains why you can find it for ~40-45$ for smy laude(oem order) dna75 on various sites

[Pass-throigh vaping?]

Found out manufacturers are only paying $25 per chip... no more dna being a deluxw item

[Pass-throigh vaping?]

ChunkyButt200 said:

please trust me when i say, the FSK hohmtech board is nowhere near as advanced as the DNA board. it's good board though. that's all i will comment on the FSK board.

Then how come they havw tc kanthal acciratw for a year while dna is trailing behind? Im not sayong with escribe and all the features that dna isnt a good chip cuz i love my dna75, but if they did tc kanthal why not do it here? They both use processors.

[Pass-throigh vaping?]

Its weird when not even the staff at vape shops uses dna devices. They all on rx series... it be nice if dna tead to .0000001atty ohms like fsk, then u can have tc kanthal... they both use cpus... fsk is just missing escribe like software. .. or dna a bettet cpu

[Pass-throigh vaping?]

[QUOTE=VapingBad]
Sí [/QUOTE] Gracias :). There were 23 different terms and none were for a IT acronym i didnt know. I think evolv should moce factory to mexico, they will never have tdp problems where there is no vape market!(or any regulations or rules, its pretty stupid how the no smoking inside law was written. Idiots, according to the no smoking inside law implemented in late 2008 you cant smoke inside but... there is nothing prohobiting you from lighting a cigarette inside or having a lit cigarrette, if they bug you shove the contitutional law in their face... they end up perplexed at the loophole also it only prohibits the act of smoking(taking a drag inside) >tobacco

[Pass-throigh vaping?]

VapingBad said:

Yes, it pauses charging while you vape and for IIRC 5 seconds after.

Spanish is my maib launguage, looked up iirc. Is it 'if i recall correctly'?