This is now outdated. For the new improved instructable with no soldering needed, go here: http://www.instructables.com/id/Improved-Flashlight-Electronic-Cigarette-no-solder/

If you're giving up smoking, you've probably already tried (or at least heard of) electronic cigarettes - a reasonably effective way of getting hot nicotine into your system, without any of the tar or nasty cancer-causing carcinogens which come along for the ride with conventional cigarettes.

Unfortunately, the cheap ones available from petrol stations and mall kiosks don't last long and produce a negligible volume of vapour.

The more expensive models can produce decent vapour and have a more reasonable battery life, but they are not cheap, and even spare parts come at an inflated price.

This instructable will show you how to build a very powerful vapour machine with long battery life from a flashlight.

The build time should not be longer than a few hours, but significantly less if your fingers are nimbler and your soldering skills are superior to mine.

Step 1: Step 1 - Acquire your materials

For this instructable you will need:

A dead e-cig battery - I am using one from a Janty Ego, but others will work as they all have the same basic layout.
An aluminium bodied handheld torch - I am using one from Wilkinson (£2.99), but Poundland ones work just as well.
An 18650 rechargeable battery.
A soldering iron (and solder)
Plumbers mate putty.
About an inch of thin (and I mean thin)  insulated wire.
Needle-nosed pliers.
An atomiser or tank system. I recommend this one: http://www.totallywicked-eliquid.co.uk/products/replacement-coil-systems-2/dc-rcs-series/k1-dual-coil-replacement-coil-system-product.html

<p>Hi David. I like your creativity but I'm a little concerned about battery safety. Depending on the atomizer and coils you mount you'll need a better (high discharge) battery. Misuse of batteries could lead to serious injuries so I guess that a warning should be added to your instructable. Cheers! http://www.nbcnews.com/business/consumer/what-s-causing-some-e-cigarette-batteries-explode-n533516</p>
Nice! I tried finding a flashlight that would work but always had some issue with my batteries working in it. I have a battery operated soldering iron that I've seen converted to one and it would be cool to make it into a herbal vaporizer. <br> <br>I posted my DIY here http://www.instructables.com/id/DIY-Electronic-Cigarette/
tight <br>
this is great! i switched to electronic about 3 months ago and ive been looking to upgrade to a better mod, but hey if i can do this it would save me about $90. kudos
Glad you like it. i'd love to know how you get on! <br>
So is it the atomiser that produces the nicotine?
Yep. The atomiser is essentially a mini kettle which heats ups the Propylene glycol to vapour
&quot;Torch&quot; ? I guess you are from the UK or downunder ! Greetings mate!
UK. Although I do plan on making a move at some point :)