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Passthrough?
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vaped0g Offline
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Post: #1
Passthrough?
Hey, everyone.  There are a number of boxes out there that have internal batteries and a usb port.  Many fail to say that they are safe to vape while charging, but don't say not to.  Should this be avoided unless expressly stated?
11-02-2016 07:31 PM
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Almost Jaded Offline
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Post: #2
RE: Passthrough?
Generally not a problem.  I've heard tell of some mods where it's a no-no, but can't think of any that I know for a fact that such is the case.  I have pass-through vaped everything from eGo twist pens to an MVP 2.0, to an iStick 30 and 50, to an eVic.  Never had an issue.

Remind one liberal per day, that laws affect only the law-abiding.
11-02-2016 08:35 PM
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vaped0g (02-16-2016)
ecignut Offline
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Post: #3
RE: Passthrough?
Hi vapedOg - welcome to the forum. They say it is safe but it cannot do the life of the battery any good. I don't do it - never had the need to but I have not seen any reports of anything untoward happening if you do.
11-02-2016 08:35 PM
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vaped0g (02-16-2016)
vaped0g Offline
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Post: #4
RE: Passthrough?
Thanks for the quick feedback.  That's pretty much what I thought, but it's nice to get some outside input.  I like removable batteries myself so that I can swap them out and move on without a leash.
If anyone has further input, please continue to post.  I work in a vape shop and lots of people ask and I always have to qualify my statements with " I can't recommend it, but I'm not sure."
(This post was last modified: 11-02-2016 08:57 PM by vaped0g.)
11-02-2016 08:56 PM
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Michael Offline
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Post: #5
RE: Passthrough?
Welcome to the forum! These folks are correct: in most cases, it's not going to make the mod explode in your face or anything, but it's not good for the battery and can make it not hold a charge as well. It's kind of like if you leave your laptop plugged in all the time, eventually it will stop working unless it's plugged in. These are essentially laptop batteries, since laptop batteries are just a bunch of 18650s in parallel. 
11-02-2016 11:17 PM
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peter-k Offline
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Post: #6
RE: Passthrough?
I learned this, you will tell us me if I'm wrong.

There is real passthrough and fake passthrough. The passthrough offered by vaping devices is commonly the later, that means you still must have a battery in there or you get nothing. Real passthrough would allow the device to be vaped with no battery in it. Plug in the charger, adjust to low wattage 10 W and below, and see what happens.

Vaping on a device with "fake" passthrough while charging is very hard on batteries and should be avoided. There is reason that facility should not even be there. Real passthrough won't get you anywhere as most don't vape with cables atttched and at 7 W.
11-02-2016 11:58 PM
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vaped0g Offline
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RE: Passthrough?
(11-02-2016 11:17 PM)Michael Wrote:  Welcome to the forum! These folks are correct: in most cases, it's not going to make the mod explode in your face or anything, but it's not good for the battery and can make it not hold a charge as well. It's kind of like if you leave your laptop plugged in all the time, eventually it will stop working unless it's plugged in. These are essentially laptop batteries, since laptop batteries are just a bunch of 18650s in parallel. 
Thanks for the input this is exactly the information that I would like to pass on to customers.
16-02-2016 03:15 AM
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vaped0g Offline
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Post: #8
RE: Passthrough?
(11-02-2016 11:58 PM)peter-k Wrote:  I learned this, you will tell us me if I'm wrong.

There is real passthrough and fake passthrough. The passthrough offered by vaping devices is commonly the later, that means you still must have a battery in there or you get nothing. Real passthrough would allow the device to be vaped with no battery in it. Plug in the charger, adjust to low wattage 10 W and below, and see what happens.

Vaping on a device with "fake" passthrough while charging is very hard on batteries and should be avoided. There is reason that facility should not even be there. Real passthrough won't get you anywhere as most don't vape with cables atttched and at 7 W.
This makes sense. A true passthrough would have a seperate circuit dedicated to passthrough use, I suppose.  You're not "passing through" the battery.
(This post was last modified: 16-02-2016 03:17 AM by vaped0g.)
16-02-2016 03:17 AM
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Don Online
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Post: #9
RE: Passthrough?
The other problem with passthroughs is that there is only 500mA at 5V available from a USB port. Which is a maximum of 2.5 watts which I doubt will produce any vapour at all.

To expose the USB circuit to firing currents is to destroy it, and quite possibly what it is attached to.

It is also unreasonable to expect one or more 18650s to charge in any reasonable amount of time when charged via USB. Think 5 hours to charge a single cell. Quite possibly a fair bit more.

I really don't understand the attraction of USB charging and passthroughs.

TVF tested battery info to be found here

http://www.preventsuicideapp.com

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16-02-2016 02:30 PM
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vaped0g (02-16-2016)
vaped0g Offline
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Post: #10
RE: Passthrough?
I agree.  I think it's about ignorance.  People think that they are saving 15 dollars by not having to buy a charger, but they are losing in the long run by having to replace their batteries or even their device much sooner than necessary. This helps me to properly inform them so that they can make more informed decisions.
16-02-2016 11:59 PM
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Michael (02-17-2016)
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