Yup. No where close enough in current output. Never work. Not even with an original carto [reliably]. It's less than a quarter of the recommended, a third and less than the barest minimum.
USB PassThru in your car
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1000mA isn't anywhere NEAR enough for "premium" cartos. [Which is why V4L is now selling 2A (2000mA) adapters.]
I use a straight through PT with 510 atty plugged into a 12 volt power point plug to USB converter. It came in a dual pack ( $10) with an adapter for a cassette player to mp3. I had two laying around the house. They have 1000 ma output. I have several mains to USB adapters and at 500 ma they will not even fire the 510 PT. I bought a 1000 ma plug ($20)in that had several charging plugs and a switch to power a USB plug on this wall wart. It is working fine. Both came for the local Wally World Super Center!! FWIW YMMV
Universal USB Power Car Adapter (1000mA) 2.58 w. free shipping
2-Socket Car Cigarette Power Splitter with 2 * 1000mA USB Ports 4.81 w/free ship.
I believe this will only power one passthru. Anything else plugged in draws power from the 1000ma
http://www.dealextreme.com/details.dx/sku.688
Sorry. I'm not good with links.
2-Socket Car Cigarette Power Splitter with 2 * 1000mA USB Ports 4.81 w/free ship.
I believe this will only power one passthru. Anything else plugged in draws power from the 1000ma
http://www.dealextreme.com/details.dx/sku.688
Sorry. I'm not good with links.
Too small for Premium cartomizers, PM2006. Won't work.
Yours too, Vap.
Anyone reading the thread: Don't buy those for Premium cartomizer use. They won't work, and can't be made to work
Yours too, Vap.
Anyone reading the thread: Don't buy those for Premium cartomizer use. They won't work, and can't be made to work
I don't have a problem with my PT at 1000 mA (on the USB charging port I originally posted) running premium cartos.
And if your statement is correct, then wouldn't that mean that all the KR808/V4L batteries would have a problem running premo carts?
No - batteries would have NO problems. Please don't confuse mAh with mA, they are a totally different animal.
And premiums draw upward of 1400mA. Your adapter might have been down-binned. Counting on that is to waste a LOT of money.
And premiums draw upward of 1400mA. Your adapter might have been down-binned. Counting on that is to waste a LOT of money.
Exactly. The Car USB adapters really need to be rated upwards of 1.5 Amps to power a PT. If it works at less, you are just getting lucky.
Yeah, at 1.5, they'll work. I'd be concerned about overheating them still since regulators don't like being pushed so close to spec, in general. At least 150% is the rule-of-thumb, hence the 2A V4L upgrade (from their original 1A device).
Personally - I design for 200%, but it makes my stuff a little more expensive.
Personally - I design for 200%, but it makes my stuff a little more expensive.
I AM confused about mA and mAh (please explain to me......and about electricity in general) 
So, if the premo carts measure 3 ohms of resistance at 3.7volts they would need a 1.24 amp current to operate optimally...right? And a PT at 5 volts / 3 ohms would need 1.67 amps.
Which would mean (as you were saying) you'd want more than a 2 amp rating for a usb charger to be safe...
Am I getting close? LOL. This stuff is driving me crazy. Especially the battery capacity and discharge stuff. *head spins in circles*
So, if the premo carts measure 3 ohms of resistance at 3.7volts they would need a 1.24 amp current to operate optimally...right? And a PT at 5 volts / 3 ohms would need 1.67 amps.
Which would mean (as you were saying) you'd want more than a 2 amp rating for a usb charger to be safe...
Am I getting close? LOL. This stuff is driving me crazy. Especially the battery capacity and discharge stuff. *head spins in circles*
That's the basic idea, "simple resistance". We're dealing with "non-linear resistance" because of our heat changes. But your basic R=V/I is close enough to find about what your peak [when cold] should be: approximately the 1.7A you mention.
The hard-cap premium cartos are < 3 Ohm (An average over 100 as 2.889 Ohm) - they're the biggest current-suck I've seen yet, or about 1.75A. But that's going to be when they're cold. When they heat up, the resistance also rises as a linear function (simple wire resistance) BUT - in a semiconductor, the opposite effect is observed. As the semiconductor heats, the internal resistance goes down, requiring more current (burned off as heat). Too much of that and the semi-conductor lets go of its magic smoke and we're done-for. Why mention that? Because there is a voltage regulator (which is a semiconductor) in the adapter to bring the 12v down to 5vDC. So we don't want to over-draw the regulator, we want to keep it as cool as possible. The bigger our regulator [max current], the cooler/more efficiently it will run.
mA or A is a measure of instantaneous current draw.
mAh or Ah is more properly written as mA/h or A/h and that should be our first clue. That's a measure of _capacity_, and a horrible one at that. In theory, we're saying that the battery can deliver a certain amount of current for a certain number of hours. 250mAh means that it has the capacity to deliver a quarter of an amp for an hour. The unfortunate thing is that that's generally a measure of "to total death". We can't drain a battery that far before the device stops functioning (and the battery can't even be charged any more) - so we're going to get something less than that. As a rule of thumb, cut that in half.
BUT... we don't really vape continuously either, so the battery has some "recovery time".
These factors all play into not only sourcing a power supply or battery - but are also the reason that when someone asks "how long does a battery last?" everyone has a different answer, and they're all correct. "As long as it lasts" is the only really GOOD answer, IMHO.
I am no fan of Wikipedia, but the article there on electrical resistance (which I've had my fingers in a time or two early on) is a pretty decent overview worth looking at if you want to appreciate the math beyond simple wire resistance. Electrical resistance - Wikipedia, the free encyclopedia
The hard-cap premium cartos are < 3 Ohm (An average over 100 as 2.889 Ohm) - they're the biggest current-suck I've seen yet, or about 1.75A. But that's going to be when they're cold. When they heat up, the resistance also rises as a linear function (simple wire resistance) BUT - in a semiconductor, the opposite effect is observed. As the semiconductor heats, the internal resistance goes down, requiring more current (burned off as heat). Too much of that and the semi-conductor lets go of its magic smoke and we're done-for. Why mention that? Because there is a voltage regulator (which is a semiconductor) in the adapter to bring the 12v down to 5vDC. So we don't want to over-draw the regulator, we want to keep it as cool as possible. The bigger our regulator [max current], the cooler/more efficiently it will run.
mA or A is a measure of instantaneous current draw.
mAh or Ah is more properly written as mA/h or A/h and that should be our first clue. That's a measure of _capacity_, and a horrible one at that. In theory, we're saying that the battery can deliver a certain amount of current for a certain number of hours. 250mAh means that it has the capacity to deliver a quarter of an amp for an hour. The unfortunate thing is that that's generally a measure of "to total death". We can't drain a battery that far before the device stops functioning (and the battery can't even be charged any more) - so we're going to get something less than that. As a rule of thumb, cut that in half.
BUT... we don't really vape continuously either, so the battery has some "recovery time".
These factors all play into not only sourcing a power supply or battery - but are also the reason that when someone asks "how long does a battery last?" everyone has a different answer, and they're all correct. "As long as it lasts" is the only really GOOD answer, IMHO.
I am no fan of Wikipedia, but the article there on electrical resistance (which I've had my fingers in a time or two early on) is a pretty decent overview worth looking at if you want to appreciate the math beyond simple wire resistance. Electrical resistance - Wikipedia, the free encyclopedia
How about this one?
DealExtreme: $6.67 2A USB 5V AC Charger (2000mA US Plug)
2A USB 5V AC Charger (2000mA US Plug) $6.67 free shipping
DealExtreme: $6.67 2A USB 5V AC Charger (2000mA US Plug)
2A USB 5V AC Charger (2000mA US Plug) $6.67 free shipping
I bought an adjustable 6.5v - 15v usb to wall adapter. I vaped away just fine at 6.5v with my 808 and then I tried my little 401 and had to crank it up to 9v. I get nothing at 6.5v. I wish I could get a handle on how this all works.
I can't be of any help on the 401. No experience here.
On the V4L Premium cartos, you could get away with 6.5v from the wall, assuming you have enough current delivery from your power adapter. (at least 3.25A @ 6.5v, but they'll probably use wattage for that, at least 21 watts [volts * amps = watts) at 6.5v DC.
The downside is that the cartos will burn through juice VERY fast, and may become excessively hot. Their life will also be shortened and you need to be VERY attentive not to burn them up. I personally STRONGLY recommend against using them at 6.5v (assuming adequate power).
In theory, the DealExtreme unit shown will do the job, as long as its not over-rated. The unit that V4L sells directly (their new 2A version) is specifically sized and spec'd for use with the 5v PT they sell, so I have to go towards recommending it instead. With the added benefit that you'll have it in your hands in 2-3 days versus 10-21 days from DealExtreme (which ships from China).
On the V4L Premium cartos, you could get away with 6.5v from the wall, assuming you have enough current delivery from your power adapter. (at least 3.25A @ 6.5v, but they'll probably use wattage for that, at least 21 watts [volts * amps = watts) at 6.5v DC.
The downside is that the cartos will burn through juice VERY fast, and may become excessively hot. Their life will also be shortened and you need to be VERY attentive not to burn them up. I personally STRONGLY recommend against using them at 6.5v (assuming adequate power).
In theory, the DealExtreme unit shown will do the job, as long as its not over-rated. The unit that V4L sells directly (their new 2A version) is specifically sized and spec'd for use with the 5v PT they sell, so I have to go towards recommending it instead. With the added benefit that you'll have it in your hands in 2-3 days versus 10-21 days from DealExtreme (which ships from China).
I do
Adrenalynn - Have I told you before, you're cool?
Thanks for all the info
Btw.. I really doubt that my adapter was down binned. I mean, how many usb devices require more than 1.0 amp to charge? Not many in the US, I guess. Probably a lot more in China...
Well, there will definitely be more options soon for both wall and car , as the iPad requires 2.1amps to charge.
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