If e-juice falls under FDA regulation, so does the delivery system. Pretty much like why a syringe is an FDA regulated product even though it may come empty.
I remember watching super_x_drifter's coiling videos on Youtube. He's a big Rea-only fan and in this video (on mech safety) he says his target build is 0.45R, which is 9.3A. Your 0.5R is pushing the bloody envelope of a 9A fuseAye, part of the reason we don't use them is the chemistry is much more volatile during a thermal runaway event.
They will vent and explode violently.
4.2V at .5Ω is still less than 9 amps.
Thank you mate.
I
If e-juice falls under FDA regulation, so does the delivery system. Pretty much like why a syringe is an FDA regulated product even though it may come empty.
Noted...I remember watching super_x_drifter's coiling videos on Youtube. He's a big Rea-only fan and in this video (on mech safety) he says his target build is 0.45R, which is 9.3A. Your 0.5R is pushing the bloody envelope of a 9A fuse. I don't remember if he talked about the max for a Reo somewhere (sure he did since he promoted them heavily). Anyway that is why I thought they were fused well north of 9A.... (start at 14:30 on the vid).
Just out of curiosity I looked at their site but could not find a spec on that spring. If it's there you need a secret handshake to find itNoted...
I'm probably too low at the 9amp mark. I can't find the actual data (darn brain) but the NEW sub ohm spring can take up to about 12 or 13 amps. The V drop of the REO is still pretty substantial, so even a fully charged 4.1v 18650 hitting a .5Ω build
is only pushing about 3.7-3.8 volts. Obviously, the lower you go, the greater the V drop.
.4Ω-.5Ω is about as low as I'll go to keep a decent battery life and a bit of a safety margin. (international shipping starts at about $35...plus the cost of the new spring)
Cheers
I
I've been scouring and googling and still have not found the actual data.Just out of curiosity I looked at their site but could not find a spec on that spring. If it's there you need a secret handshake to find it. Do you have a link to your 9A spec?
Don't see a listing for a sub-ohm spring in their store either...
And I bet it is well north of 9AI've been scouring and googling and still have not found the actual data.
Great idea asking "over there".
Maybe I'll give Eric a ring tomorrow afternoon...I bet he has that data somewhere.
Cheers
I
And I bet it is well north of 9A
Nothing wrong with that but I suspect it would not be a good idea to put a protected 18650 in there! (in terms of risk if one is not extremely careful and building for low power)
ETA: I find it "most peculiar" that that spec is not front and center. It's like "our device is fused but the fuse rating is a closely held secret". Very strange way of doing business.
I follow ecig news stories and pay extra attention to reports of injury accidents. Basically all the reports involve carrying loose battereies with unprotected terminals or unregulated mods. It seems to be very rare that a mod with all the usual protections shorts a baattery. That should be no surprise. Phones and cordless power tool batteries are lithium ion and they rarely cause injury accidents realted to the battery..
Vaping is being covered for regulatory purposes by the TCA . There is no voluntary option in it, it's law. For the FDA to provide voluntary evaluation, it could not be under the TCA, or any other FDA umbrella short of legislation removing vaping from being covered by the TCA. And that's not happening.
Besides, once you're talking voluntary, it's out of governmental hands and then you've got industry stuff like UL to establish standards. That's a voluntary pathway.
I think you are wrong about only granting authority. Remember Tobacco product definition includes delivery devices.
The Tobacco Control Act is located here.
Family Smoking Prevention and Tobacco Control Act Table of Contents
Reading Title III: Prevention of Illicit Trade in Tobacco Products seems to say they must regulate.
Family Smoking Prevention and Tobacco Control Act Table of Contents said:Section 301* Labeling, Recordkeeping, Records Inspection
(use of statement "Sale only allowed in United States"; recordkeeping for tracking and tracing; illicit trade and illegal transactions)
Section 302* Study and Report
(study on cross-border trade)
This thread got me thinking about that. But I think they do certify open system devices like flashlights, where a user can put any combination of bulb, battery and flashlight together into a system. I assume their standard is that any idiot may be putting that together, so the system needs to have enough protection to keep any idiot from blowing himself up.
There are lots of mods that are conservatively rated, and have enough protection to keep any idiot from blowing themselves up. Power limiting, reverse polarity protection, short circuit protection, internal thermal protection make it really hard to blow up a modern regulated mod. Except...
The problem of user selected batteries. Using 18650 as an example, there are a lot of different 18650 variants. It's hard to blow up an IMR/INR 186560 in a good mod. But people can put other non-recommended batteries in them and I'm not sure how UL would deal with that. And I suspect that is one reason you don't see power tool battery packs with user replaceable 18650's. and I'm sure the makers are happy with that since they can sell more overpriced battery packs without a competitor adding a greatly desired feature like user replaceable cells.
A solution to that would be to make a new proprietary (to the vaping industry) battery format that would basically be an 18650 that is certified to work at the discharge rates required, that only fit vaping mods. It might also require newly designed recessed contact pins that are difficult to short out, like was done with DSLR camera systems.