Evolv DNA 75
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You missed the part when I said SX350. This is the smaller board they have which is now a 60w board. But I see that this 75w DNA is the same size as the DNA200 but less components maybe?
So my wish has not been granted, a small 75-80 watt TC in a small package
I also hope it's not the same board as the DNA200, a smaller one as the DNA40 is a much smarter move. If it's the same size as the DNA40 a lot of DNA40 users would upgrade the chip (VF for example).
While they could probably deliver 75w on a board the size of the DNA40 there is no way they could add the processing, memory, data communications, and charging capabilities integration necessary to work with Escribe on a board that small. This will be the size of the 200, possibly more narrow but in all probability the same size as they will have a vested interest in reducing overhead by utilizing same layout of specialty equipment developed to produce the 200.
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Right. It likely shares the same board footprint as it would only be logical to leverage what similarities they could.
I'm interested in the programming and memory abilities of the DNA200 but I'm only buying mods that take 18650's, either 1 cell or 2 in parallel. I never go above 30 max watts in TC so 40 watts max would work for me. The high power mod trend has been a technology distraction from what most people do in practice.
Check out the soon to be released Efusion Duo. I love my Efusion Mini & may pick up the Duo since it can take either dual 18650's or a Lipo.
I too rarely go over 35 watts and most of the time spend more time at 10 watts. Yet I have two RX200 and two DNA200 mods anyway. Plus there is only a $15 difference between a DNA40 vs. DNA200 board. I'll pay that extra 15 bucks for the added features of the DNA200 mod, even though the power output of the DNA40 would be good enough.
Why, if you don't mind me asking, do you only want parallel dual cell?
With a properly implemented design series is undoubtedly safer because the mod can monitor each cell individually, with parallel a faulty cell can hide behind a good one.
I have both a cuboid and a mini. I ran both until they quit with new identical batteries, same settings, same atomizer with the same build. They both read about the same on the puff timer. My max watts are never above 30. I hoped the dual cell series set up would run twice as long. It didn't. The cuboid is fine of you run above 75 watts, otherwise I see no benefit.
I wouldn't think this board would have a balance charge to it either. It's not it's design. So I'd have to assume any dual battery DNA 75 mods would be in parallel unless the mod didn't support usb charging.
You are right twice the mAh should give you twice the runtime and maybe a little more.
Efficiencies of the chips in series and parallel are different. They are close though, typically within 5%. But a dual series and a dual parallel are going to have close to the same run time. Calculate in Watt hours not milli-amp hours.
Convert mAh to Watt hours
Convert mAh to Watt hours
That's not due to the batteries in the Cuboid being in series though. The chip isn't as efficient as possible (though if you really don't get more runtime than your mini there's something wrong with your particular Cuboid. I get about twice the runtime). Hopefully that can be remedied in a future firmware update.
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I know, I was just keeping it simple.
But I don't understand why you are only considering parallel cells when series cells are better on safety and performance with the right board. EG. a DNA 200 in 2 cell operation (133 W) using series cells is >= 97% efficient and monitors each cell individually. With parallel cells you loose the better efficiency of step down only regulation, the individual cell monitoring and depending on the mod have a very real danger of generating extreme currents inserting cells if they are at different voltages.
I wasn't the one saying any of that. I just added a comment about the DNA 75W more than likely not supporting balance charging
Sorry I got you mixed up with another person, my bad. It does interest my why anyone would prefer series in a regulated mod, I suspect a legacy truism from mech mods, like lower ohms using more power.I wasn't the one saying any of that. I just added a comment about the DNA 75W more than likely not supporting balance charging
I think series is more efficient, but there are arguments that could go the other way depending on how a person intends to use a device.
In series its higher voltage but lower current.
In parallel, its lower voltage but higher current.
I think in his case, series would be better for his intended usage.
If one was talking about a mech mod, series or parallel makes a huge difference. But if a regulated mod can convert higher and lower than the battery voltage, it really doesn't matter if the efficiency isn't bad.
My vape doesn't change. It's what's in the signiture area below. The cuboid ran no longer than the mini in my test according to the puff timer. I'm thinking I'll do the test again and report the results again. It will take a few days to do that after I start the test. I'll report the results here.
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