BillW50

That jumping up and down in white is the battery voltage while not firing? If so, that shouldn't be.

Ok. I'll crank it up and test again. Yes, even 949 puffs from 3ml in one example above. The secret is to under wattage high wattage coils and builds. I don't think you can do it overnight and be satisfied. You got to inch downwards overtime I believe. 1653 puffs with 50ml of juice used? That is 33 puffs per ml. It's possible. The lowest I ever got was 20 puffs per ml with a 28mm RDA. Professional cloud chasers are vaping even much lower. Although 33 puffs on a boro? Yeah I don't think so. Don't worry you are not going nuts. For at least 9 years now (every DNA device with a puff counter) doesn't count every puff under removing battery conditions (charging batteries in the mod works fine). I really need to talk to John & Steve about this. But I might not be able to talk about it after I do. Check the puff count after you replaced the battery and check it again before swapping batteries and that is the actual count. Don't trust the count after you replace the battery as the count is likely lower than before you swapped batteries.

@EagleRock, @intel, and @Dieseljesus, are you all using boost? As that will drain the battery faster. The Stubby for example doesn't sport boost. I didn't use boost for my tests. I should add the coil read 0.16Ω on the SAN and 0.17Ω on the Stubby.

SAN DNA80C AIO #108 Firmware SP78 BATT#1 RPY 20w 768 puffs 3.46v 3ml BATT#2 PWR 18w 949 puffs 3.39v 3ml Stubby Xray AIO #14138 BATT#1 PWR 18w 847 puffs 3.19v 4ml BATT#2 PWR 18w 858 puffs 3.33v 3.5ml I'm not seeing any real difference in battery longevity. I remember @EagleRock was using 30w and @intel was using 35w. So what wattage are you using @Dieseljesus? I could do it again at higher wattages. The SAN DNA80C would report weak battery at the tail end. The Stubby would dial back the wattage and then refused to fire claiming weak battery at the tail end. Any questions of my results, just ask.

Hi @Dieseljesus and @EagleRock. OK I'll take a DNA80C to the work bench and do some testing. I'll report back in about 2 days.

Typical of a cell with hundreds of recharges or are older than 5 years old. Think of it, a typical cell is rated for 250 to 500 recharges. And if you recharge a cell everyday, in 6 months time that is already at 180 recharges. Some battery rechargers can report accurate cell capacity. It will show the battery has lost 20% or more of its capacity in this state. Some other chargers can read the internal battery resistance. And they will increase as they age and gets used.

Well the next step is to contact the place of purchase, unfortunately.

It should connect to EScribe by the board alone without being installed in the Stubby too. There are four wires between the Stubby board to the DNA60 board that controls data. And something is wrong there if EScribe still can't connect by the board alone. I have two of those boards and mine hasn't been unboxed yet. But Wayneo is right, the place you got it at is the place to go. Although Evolv by filing with the HELP DESK is another option to try if the first option fails. I think I would check those wires first. If ok, maybe they wired them to the wrong place, like getting two wires reversed.

Looks like about 92 watts hitting 0.225Ω. That means the output is 4.55v @ 20.22A using ohms law. And the board is drawing more than 20A from the battery. Since the board is also boosting the voltage. 92w / 3.6v = 25.56A from the battery. That is a lot of current the board has to deal with. That alone is going to cause the board to heat up. And most mod batteries will also heat up (>80°C) drawing 25A from them for minutes at a time as well. And the average battery will run from full to empty in about 8 minutes at that rate. That is a lot of heat in an enclosed tight space found in mods. Sure I have plenty of DNA100C mods too. And I haven't seen one board hit higher than 50°C yet. But I haven't used one at 92 watts firing for minutes at a time either. The mod is probably going to need some vents (or bigger ones) at least if not more at that extreme.

Yes for the neg side of the select, up, and down share the same pin 6 on the board.

One connection to the switch is neg or ground (same thing). The pos switch connection is normally not ground unless the button is pressed. Thus if pressed, the pos becomes the same potential as ground. Now the chip sees the button is pressed. Virtually all digital switches work this way including keyboards.

I understand what you mean @lazarev. The problem is the board can't get enough power. Likely causes are battery wiring, battery contacts, or the batteries. You say you are using Sony and others. Some Sony batteries are designed for flashlights (torches) and not suitable for vaping. So what type are these batteries? What others are going to want you to do is to use EScribe's Device Manager and take a screen shot of the battery voltage while firing. All it is going to likely show is the battery voltage drops like a rock when you fire the mod. And speaking about the DNA60. What model is this mod? As that might clue us in on what the likely cause is.

Absolutely!

Yes. The black piece flips up. It's fragile, so be careful!

That is because it isn't using a DNA board. Rather it sports a Quest 2.0 board.