Using/Charging a Passthrough Device on Computer or Laptop

[Liquidsand]

I am sure this has already been discussed, but my search results so far haven't zeroed in on the "definitive answers thread".
I've also asked a vendor with no response before and after my passthrough stopped working, and mentioned it elsewhere on loosely related posts without receiving any comments on the subject. I have really tried to figure this out on my own.

Is it safe/recommended to use a passthrough device connected to the USB port on a computer or laptop?
If not, could doing such a thing cause a battery to fail?

From online shopping and reading product descriptions and reviews, one would think it is the natural thing to do, but I have read some remarks here and there suggesting that it is very wrong, and could actually be dangerous.
If anyone has a link to another thread, or just wouldn't mind coming out and explaining it to me, I imagine it is a common confusion for newbs like myself, and thanks in advance for any help.

 

[cbrite]

I use my pass through in a USB port on my laptop all the time. It has been over a month since I started vaping and nothing bad has happened to my computer or to my vaping stuff.

 

[djsvapour]

I don't charge anything through USB ports.

On my laptop, it would probably kill the laptop.

On the desktop, it would work (I have a custom PSU) but I don't own a passthrough.

Either way, I can't see it being a problem for the e-cig.

 

[ad68]

I think some usb ports (laptops) may not handle high currents well. Only below 0.5A = 500 mA. google USB specs or look it up on wikipedia. Desktop computer may handle more. Current limitations are an issue in particular if you're using a 'true' passthrough which does not run on battery power.

 

[patkin]

I use USBs pretty exclusively (Ego C upgrades) and don't vape with them while they're charging. I just prefer USB for charging over the screw on cable types (though they can be charged that way too)... but, I would never use one of my computer ports to charge them. Its no biggy though because I sit right by a power strip. I won't vape while charging though as it just gives me the willys with a charging battery close to my face. I have the little VV USBs with no battery in them for a rainy day supply but after initially testing them using a power strip I haven't used them.

 

[EBates]

Go buy a 1 or 2 amp wall wort charger.
Using the ecig while charging through a computer USB port could cause a excessive current draw and kill your USB ports.

 

[sputtertoo]

My wife vaped with her pass through plugged into her computer's USB ports at work at her old job with no problem. Her new job doesn't allow vaping inside so she doesn't need to charge and vape.