This device really has me curious... Not 100% sold on the DNA20 as I tend to be a low volts vaper and it looks like it's limited on the low end. But, I'm getting tired of "disposable" mods. You know, the $50 ones that work great for 6 months the go all wonky on you. Voted for, and eagerly awaiting the review.
One question, I've seen on your site and this thread that you only recommend IMR batts. Does that mean those 3000mah Panasonic NCR batts will "void the warranty"? Not too up on my battery chemistry...
IMR batts have what's called "safe chemistry." While I'm sure it's all relative, they're designed for high current usage without going ballistic and taking off your hands and lips. If you crank a DNA 20 up to 20 watts and cause damage to yourself and the device by using a non-IMR battery, yes, that will void the warranty and most probably several body parts. Or maybe not, since our ballistic aluminum tubing should take the brunt of the explosion. And the venting. But it would definitely get really hot. Once a battery goes into thermal runaway there's not much to stop it, save a bucket of water or a blast shield. Even an IMR battery, if shorted, can be really dangerous, so pleeeeze don't run 0.3 ohm coils on a Futura or any mod. Thanks.
Now, as to the matter of "low voltage" vaping, the DNA 20 gets a bad rap on this score. I'm currently running a 1.8 ohm atty; if I set the power to 7 watts it runs between 3.7 and 3.8 volts. That's basically straight battery voltage, but with great regulation. A 1.4 ohmer gives me... wait for it... 3.1-3.2v! Wow! Really? That actually surprises me a bit.
The point is, we're more concerned with actual heat to the coil than a particular voltage. So both these attys, while operating at different voltages, produce the same heat at the coil, although this will vary a bit depending on material, amount of gunk buildup, etc. But it will be very, very consistent in terms of power delivery.
The DNA 20 also has the ability to default to unregulated battery voltage if it falls too far below its regulation threshold. That's why it's able to fire sub-ohm coils, where other regulated devices can't.
Hope this sells you on the DNA 20. One other thing: it just vapes better. Really. That's not unique to the Futura by any means, but we're prettier
