DNA75C chip has major issues

Not only is it incredibly inefficient. It also has a bad current leakage. If you leave a fully charged battery in it for 72 hours it will fully discharge it without vaping once! Even if you want a 1 battery Mod I highly recommend the DNA250C over it. The only issue is everyone is using the 75C and not the 250C! Come on Mod builders get the idea! Hopefully Evolv will update this chip. Every chip manufacturer had at least one dud. This is Evolv's go at it. I do not see why this is so. For instance a 350J is considerably more efficient and has very little leakage. I just figured people should know this if they do not already own one. What they are getting into. Although it seems 90%+ of custom Mods use the 75C! If you are buying a non custom Mod and want an Evolv, get the 250C!

GorGon27 said:

Not only is it incredibly inefficient. It also has a bad current leakage. If you leave a fully charged battery in it for 72 hours it will fully discharge it without vaping once! Even if you want a 1 battery Mod I highly recommend the DNA250C over it. The only issue is everyone is using the 75C and not the 250C! Come on Mod builders get the idea! Hopefully Evolv will update this chip. Every chip manufacturer had at least one dud. This is Evolv's go at it. I do not see why this is so. For instance a 350J is considerably more efficient and has very little leakage. I just figured people should know this if they do not already own one. What they are getting into. Although it seems 90%+ of custom Mods use the 75C! If you are buying a non custom Mod and want an Evolv, get the 250C!

Click to expand...

So your saying your cells drain in 2-3 days without using it?
Maybe its wired wrong mine dont drain like that ,
I only have 4 75c mods and none drain without usage like that although the LV mirage does eat through battery life whilst in use. Not standing without use.

Where as the BF preist mod seems a lot better with same cells in use,
Creator 75c p mode18650
and vt 75c using 18650, 26650s , none drain like your experiences

Did you setup in escribe with battery analysing ect,

I only use single cells mods
Have older DNA 75 mods too,
and a couple of DNA 60 which has best bat life out of all the single DNA s

Dna 60 and Dicodes 60-80 would be better choices
Most that buy higher end mods use higher end Atomiser that run perfectly well with the smaller Atomiser - single coil RTA,s ect,
That want Flavour over clouds so vape low power.

Sent from my ONEPLUS A3003 using Tapatalk

It should be pointed out that the 250C requires 2 batteries to power it which is what makes the 75C chip so widely used. Most people don't like the size of a dual battery mod. I have a couple of 250C mods and that is by far a superior chip.

The battery efficiency of the 75C means that some nice mods I own with that chip see only very limited use and I've started to thin them out.

Another point that should be made is that after evolv ships the chip it still needs to be calibrated. Some companies do the calibration when making the mod, but a lot do not.

My 75C do not drain when idle either I have 2 Therions that are dual battery 75C, Asmodus Thor 75c single 26650, SBody Legend 75 single 26650 and the VT Inbox 75 single battery 18650
- but my Vsticking VK530 with the Yihi SX530 does that- The mod sat on the counter for a few days and wouldn't fire when I went to use it- took the dual batteries out and put them on the charger and they were drained below 3v- I tested them again and same result- I even tried new batteries- the same, drained below 3v, mod sitting idle and unused. I take out the batteries when not using the Vsticking.

SnapDragon NY said:

My 75C do not drain when idle either I have 2 Therions that are dual battery 75C, Asmodus Thor 75c single 26650, SBody Legend 75 single 26650 and the VT Inbox 75 single battery 18650
- but my Vsticking VK530 with the Yihi SX530 does that- The mod sat on the counter for a few days and wouldn't fire when I went to use it- took the dual batteries out and put them on the charger and they were drained below 3v- I tested them again and same result- I even tried new batteries- the same, drained below 3v, mod sitting idle and unused. I take out the batteries when not using the Vsticking.

Click to expand...

Exactly , the Yihi chips sre known battery Killers , DNA chips cut off and thats that

Yihi still carry on sucking volts down from 3.2 -2.5v an below , some chargers will then refuse to charge when cell goes down past 2.5v.
Maybe he needs to calibrate mod board as mentioned,
Or has a bad chip,

Sent from my ONEPLUS A3003 using Tapatalk

benley73 said:

Exactly , the Yihi chips sre known battery Killers , DNA chips cut off and thats that

Yihi still carry on sucking volts down from 3.2 -2.5v an below , some chargers will then refuse to charge when cell goes down past 2.5v.
Maybe he needs to calibrate mod board as mentioned,
Or has a bad chip,

Sent from my ONEPLUS A3003 using Tapatalk

Click to expand...

Yes I upgraded all of my DNAs thru escribe easy to do.
Maybe Gorgon needs to try the upgrade thru escribe- or contact Asmodus, I believe he is talking about his new Thor II-
The Yihi was a little more complicated but I believe I did upgrade that one too- was so shocked to see my batteries drained down like that, asked around and a few others experienced my same problem with Yihi.
I contacted my vendor and was reimbursed for the Vsticking, told me to keep the mod, I just take out the batteries when not using it, didn't want it to ruin my batteries.

I must need to run battery analyzer. Apparently Ultroner did not I guess. Who knows but I was pretty surprised. Apparently this is not the case. I guess they just did not calibrate it or wired wrong. would not put past them either. Did not try my other 75C devices to be fair. The 250C is indeed a far superior chip but makes for large Mod. I swear I can get clouds at 20W in temp control with right setup. I feel no need for high wattage large Mods. Although I am sure we can all agree the 75C is very inefficient.

DNA40 was evolv's dud

nearly killed the business

GorGon27 said:

I must need to run battery analyzer. Apparently Ultroner did not I guess. Who knows but I was pretty surprised. Apparently this is not the case. I guess they just did not calibrate it or wired wrong. would not put past them either. Did not try my other 75C devices to be fair. The 250C is indeed a far superior chip but makes for large Mod. I swear I can get clouds at 20W in temp control with right setup. I feel no need for high wattage large Mods. Although I am sure we can all agree the 75C is very inefficient.

Click to expand...

DNA 75C is horrible with a single 18650 - even in the conserve battery mode

JuicyLucy said:

DNA 75C is horrible with a single 18650 - even in the conserve battery mode

Click to expand...

I do prefer the dna 60 for 18650s , probably there best small modders board,

Sent from my ONEPLUS A3003 using Tapatalk

i like the dna75D (what they renamed the NON colour to) or dna60

much less finicky than the C boards

but, i vape in wattage mode. And only use regulated to avoid contact maintenance

IDK about the new-fangled color stuff, but my old Hcigar VTInbox with the regular DNA 75 works just great here. Not seeing any adverse draining when idle.

It can last for a couple days on one battery at 35W/245C using custom SS316L TC and a 0.6 single coil.



Don't need fancy.

JuicyLucy said:

DNA 75C is horrible with a single 18650 - even in the conserve battery mode

Click to expand...

It's even worse when the battery drains below 3v when sitting idle unused for a few days, shouldn't be doing that.

GorGon27 said:

I must need to run battery analyzer. Apparently Ultroner did not I guess. Who knows but I was pretty surprised. Apparently this is not the case. I guess they just did not calibrate it or wired wrong. would not put past them either. Did not try my other 75C devices to be fair. The 250C is indeed a far superior chip but makes for large Mod. I swear I can get clouds at 20W in temp control with right setup. I feel no need for high wattage large Mods. Although I am sure we can all agree the 75C is very inefficient.

Click to expand...

Since this is a new mod I would contact the Vendor about this- it is not right! Are both of your new Asmodus Thors II 75C doing this? You are using 21700 battery too right?
You spent a lot of money on the Thor II and get it checked out by Asmodus before your warranty ends, they will fix it for you.
I have the Thor I 75C and uses a 26650 battery , working great, no battery drain when idle and seems like pretty good battery life for me- I vape at 30w and the mod lasts about 6 hours-
If it were me having this problem with my new Thor I would contact Asmodus and get it straightened out. They have great customer service and they will help you, they answer the phone there and will help.
I had the battery drain problem with my Vsticking Yihi and I contacted the Vendor- got my money back to buy another.
Since yours is a custom stabwood that you chose they would have to fix that for you.

Okay, I will call for RMA right now. This sucks. First one had a busted up button. Now this one is eating batteries. It literally lasts 24 minutes vaping. I know they will fix it. They have before. I thought it was the chip in general, I apologize my bad. I have many with DNA75C but only using this one. I figured it was just the nature of the chip. I guess it is a bad one. My stinking luck. First one button was confirmed bad and they agreed I did not bust it. Let me pick another of the first 30. Now this one is bad! Argh. I do not mind 1x18650 because it lasts longer than this! Does anyone know what is the highest MAH 25 Amp 18650 now? I need to get some more. Since I am going to use 18650 Mod while this is in for service. They have to service it now because first 30 are all sold. Luckily they have a specialist in Stabwood Mods at Asmodus.

was just about to pull the trigger on a DNA75C mod. glad i saw this.

2c, don't be deterred. I have many of them but only using one. It very well may just be a bad board because others do not concur with this. The only thing is it is very inefficient. I would try to get a Mod with a 26650. Or 2x18650. 1x18650 will not vape very long. If you are away from charger a few hours no more vaping then.

GorGon27 said:

Not only is it incredibly inefficient. It also has a bad current leakage. If you leave a fully charged battery in it for 72 hours it will fully discharge it without vaping once! Even if you want a 1 battery Mod I highly recommend the DNA250C over it. The only issue is everyone is using the 75C and not the 250C! Come on Mod builders get the idea! Hopefully Evolv will update this chip. Every chip manufacturer had at least one dud. This is Evolv's go at it. I do not see why this is so. For instance a 350J is considerably more efficient and has very little leakage. I just figured people should know this if they do not already own one. What they are getting into. Although it seems 90%+ of custom Mods use the 75C! If you are buying a non custom Mod and want an Evolv, get the 250C!

Click to expand...

the dna250c is a bigger board it's nearly 24mm wide with a mount and you need extra cables to wire it plus you need a min of 2 batteries to make it fire up hence why we use a dna 75c but it depends on what you vape at and the coil

some customers ask for massive mods and they only vape at 12 watts for me a dna250c is a little overkill we have in the uk what we call speed factor

"i have a dna 250c i can vape at 400watts"

"do you"

"naaa i vape at 20 watts"

speed factor is the same as your cars speedo it says you can drive up to 180mph but the speed limit is 55mph

but dna have the best RMA in the business you should try some of the other makes when a board goes wrong with them may as well hit it with a hammer

but also a lot of manufacturers bolt onto the board extra controllers so they can move the buttons about small jumper boards

I have a 75 C and it works fine. Turn the display to stealth mode.

I can't even drive but I bought a 2019 Ferrari 812 Superfast. Since these appreciate like mad. Usually normal cars deprecate. In 10 years should be 2-1/2 times it's MSRP if not much more. That is crazy considering it is a half Million USD car. However to your point, when I did drive I was driving cars that could go 260+ MPH. I drove 30 on The Highway! It does piss people off. Always afraid I got shot. This is the USA after all. The thing is you are potentially driving a several Million USD Automobile. Do I really want to even drive it 75MPH? No, rock could dent it whatever potentially losing $100,000+. My new one has never been driven. It has 4 miles on it. So mine in particular will be top choice. People rarely drive these types of cars anyways. It is not uncommon to find a 70 year old supercar with 10,000 original miles. They are just investments. To me at least. I also got a 2019 ZR1. In ten years that too should double in price with only 7 miles on it. I will undoubtedly be dead soon after that but for my family. I was not bragging by any means. I was just concurring with your point. I vastly prefer Mods as small as possible so one battery for me. I am currently vaping at 20W. I do not leave here but they do not last long nonetheless. The 75C is very inefficient. I will try stealth mode. I think they could have made it much more efficient and bet next one will be. That is most peoples only complaint about it. Evolv CS is 100%. Trusted me and sent 5 boards. They did not want to repair 5 Mods at once. Only problem is neither can I! It is of interest that the Paranormal(which is junk IMO) is 2x18650. Yet smaller than most all Stabwood Mods. Is it difficult to make a tiny Stabwood or something?

STU, another question for you. How do some Mods with 75C have the fire button on top of the Mod? AFAIK you cannot relocate the button on 75C? They use cam/lever or something? Oh, one other thing. What is best way to pry off glued on faceplate without chipping the wood? Thank you

vapesmarter said:

the dna250c is a bigger board it's nearly 24mm wide with a mount and you need extra cables to wire it plus you need a min of 2 batteries to make it fire up hence why we use a dna 75c but it depends on what you vape at and the coil

some customers ask for massive mods and they only vape at 12 watts for me a dna250c is a little overkill we have in the uk what we call speed factor

"i have a dna 250c i can vape at 400watts"

"do you"

"naaa i vape at 20 watts"

speed factor is the same as your cars speedo it says you can drive up to 180mph but the speed limit is 55mph

but dna have the best RMA in the business you should try some of the other makes when a board goes wrong with them may as well hit it with a hammer

but also a lot of manufacturers bolt onto the board extra controllers so they can move the buttons about small jumper boards

Click to expand...

Not all dual 18650 250c are huge. Plus this one also has a squonk bottle in it. Fits in hand perfect.