USB Passthroughs

Vapor King Manual Passthrough

A USB passthrough is a device that allows one to vape continuously without having to worry about recharging their e-cigarette. It is basically a battery with a cord attached. The end of the cord is a USB plug. They are also called “passthrus,” and “PTs.”

Where It Works

Passthroughs work great for people who are often on their computer, or in their car. They can be used on a laptop, desktop computer, with a wall adapter, and with a car adapter. The Vapor4Life USB Passthrough runs at 5V, which is more powerful than all the KR808D-1 batteries from Vapor4Life (Vapor King, Original Vapor King, and Vapor Titan lines).


Vapor King Passthroughs come in both automatic and manual versions.  The automatic style is activated by an internal suction switch (the same as the automatic batteries). The manual passthroughs are activated with a small button on the side (just like manual-style batteries). USB Passthroughs are available in metallic red, metallic green, metallic purple, blue, gun metal platinum, light green, black, gold, white, chrome, lavender, and copper.


The Vapor4Life Passthrough works with most USB ports. It features a durable, reinforced wire connection, and the convenience of a partially coiled cable. The battery part is the same length as a regular-length Vapor King battery which is just over three inches long. The attached cord is 49 inches, and can be stretched an extra 36 inches past that, for a total of 85 inches (seven feet)!

The Computer Controversy

Ever since passthroughs came about in the electronic cigarette world, there has been a controversy over using them on a computer. It is possible to damage a computer motherboard using a passthrough. Because passthroughs need more power, the computer may become overloaded and burn out. However, it is extremely rare.

You may have heard of e-cig expert Morandir835, a guest blogger who frequents the Vapor4Life forum and ECF. He tests all Vapor4Life products very thoroughly. His opinion on using PTs on the computer is that it simply should not be done. Vapor4Life respects him and all his testing. Vapor4Life wants to help people, so if a product that we sell shouldn’t be used a certain way then we will tell our customers.

Some people choose to never use their PT on their computer. Others are aware of the risk, but decide to go ahead and do it. Many of the vapers at the Vapor4Life headquarters use passthroughs on their computers. Personally, I do use mine on both my work desktop and my personal laptop and have never had a problem.

Passthroughs get very hot when used on a computer, so it is strongly recommended that you use CoolCarts as opposed to WOW carts and/or a drip tip for computer vaping on a PT. Also, be sure to always unplug your passthrough if you will be away from your computer longer than five minutes.

Car Vapin’

Vapor King Car Charger

Some people prefer to use their passthrough while driving. It is great to have just going to work, or for long road trips. All you need for it to work in your car is a car adapter, just plug it in and you’re ready to vape! The Vapor4Life Car Adapter is rated for 5V.

Couch Vaper

Are you a couch potato? No worries. Vapor4Life has you covered. You can have the convenience of unlimited battery life while chilling at home. Just plug your passthrough into a wall adapter, and then that into a wall socket. Now you’ll never worry about your battery dying right in the middle of the big game, or when you’re in a really good spot in your book.

Tanks on PTs

A tanks may be used on a passthrough, but it is not advised. They work best with a carto that has 3.0 ohms, rather than the 1.5 or 2.0 ohm carts inside the tanks. We recommend not using tanks on passthroughs, as they work best on batteries.

Do you use a passthrough? Where do you use it the most? Tell us in the comment section below.



9 thoughts on “USB Passthroughs

  1. I use a passthrough on my laptop and have never had an issue with it. For me, the big plus is unlimited battery life. I never have to worry that the e-cig will need a charge or will cut out or produce less than stellar amounts of vapour. A huge plus for me. I would actually go as far as to say they’re essential kit for any serious vaper.

  2. Passthroughs are very handy when always on the go. I use mine with my laptop. Yes, no need to worry about running out of battery life while busy working on something on my laptop.

  3. Still stand by never using them on the computer. Reason for it is a usb 2.0 port puts out only .5a standard. Usb 3.0 puts out .9a standard. Running a wow cartos at 2.3 ohms on a pt at 5v requires 2.17a, more than 4 times what the port is rated for if it’s a standard usb 2.0, and most usb 2.0 ports are rated for 1.5a max. Leave up to the user though. Rather spend $10-20 on a wall adapter, then $900-5000 for a new computer. Failures happen more often than people think….

  4. I’ve been using mine on my computer and my car’s built-in USB port for a year now with no problem, but recently I purchased a Zagg Sparq, which is basically just a battery with four full cell phone charges in it and two USB plugs, one that is optimized for electronics. I got it for power outages and stuff, but am finding it handy for just carrying my pass-thru around with me. I like the even vape it gives compared to batteries and I like not having to worry about running low or out of battery power. Hadn’t heard of the computer controversy and am going to stay away from my computer with it from now on and just use the Zagg. I’d rather be out $100 for the Zagg than several hundred dollars for my computer.

  5. when i started with e cigs i went with the ultimate ultimatum kit. i got frustrated very quickly. the staff were great and ive been determined to use what i had bought somehow. i couldnt stand refilling carts all the time and burned through them FAST (boge 510 are great) first i got an 808 to 510 adapter.i was using the tiny 808 batteries with a vision clearomizer(ce2) and then other clearomizers. i bought from vaper4life without researching and UNDERSTANDING enough about different threading.i liked clearomizers for a while, but burned thru those like i did with the carts from vaper4life, even tho i babied them like crazy and did everything i was supposed to do.i just got a smochtech dc tank. earlier in the month i bough a joytech EGO battery(510 threading, a lot more versatile) and while i LIKE the tank, the ego battery i bought is an Ego C upgrade.i can set it at 3.3 volts all the time(vaper4life batteries dont stay at a high voltage for long at all) or i can set it at 4.2 and let it die down. the dc tank i bought have carts that have 2 holes. not enough voltage to burn the juice without flooding the cart inside. im glad i got the pass through from vaper4life because its proving that i can keep using what i bought.i can get single punched carts but i did a great job at burning those. so with the pass through i am using an 808-510 adapter and because the volts are higher, theres no happy i remembered i had it and googled the volts and THIS popped up. so i may stay away from my computer with it.but im here to say that there are ways to use vaper4life products with other devices to hold the juice(more juice, better carts–boge hands down-, and waste less money).i use 510 boge cartomizers on my vaper 4life battery sometimes, WITH an 808-510 adapter. thank you vaper4life for getting me started, and as i expected, im caring less and less that it looks like a cigerette and more just gives me the satisfaction thats out there, that just CANT be met with 808 batterys and plain,WOW,w.e. carts. ecf forum is great. youtube is great, and also peoples opinions vary greatly….so watch out if you’re gonna spend more money experimenting. it pays to ask a lot of questions, PUN intended :D

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