Now, others may well disagree, but I didn't find them totally disgusting ... but they are in no way equivalent to a full pack of traditional cigarettes (as advertised). Indeed, I bought two after lunch and they were both done by later in the evening and I'm not a two-pack-a-day-guy, by any means.
Disappointed, I pulled one apart to see where the problem lay. A disposable e-cig is simply a very small heating element wrapped in wadding soaked in nicotine-infused liquid and attached to a battery (and of course, the trademark LED at the end). I was struck by the fact that the wadding was still quite wet and clearly not spent ... obviously, the cheap, non-rechargeable battery was the problem ...
WARNING: This hack is neither elegant, pretty, nor something you'd be flashing about in polite company, but if it's late at night and everything is closed, this just might well be your saviour. Not only that, but I'm confident that this mod will double the usable life of your disposable e-cig!
You can use any 3 volt DC battery source - I just happened to have some AAs about and they are a good size to hold in your hand.
You can do this without any special tools or skills, and you will need:
1. an ezi-cig (or equivalent) - dead, of course!
2. a couple of 1.5V batteries (or one 3V)
3. duct tape
4. soldering iron
6. about six inches of thin, insulated wire
7. some kitchen foil
9. scissors (the smaller and sharper, the better)
Step 1: Remove the End Cap
Step 2: Remove the LED
Step 3: Start Pulling the Battery Out ...
Step 4: Snip the Red and Blue Wires to the Coil and Remove the Battery
Put it away now, or you'll lose it.
Ok ... don't say I didn't warn you!
Step 5: Making Your Battery Pack
1. duct tape the batteries together, leaving both ends free from tape
2. fold the foil as shown to make a conductive bridge between the batteries
3. duct tape the foil conducting bridge to one end of the opposing batteries
4. duct tape a spare length of thin, insulated wire to the negative terminal at the other end, as shown
5. you're good to go!
Step 6: Solder the Extension Wire to the Two Wires on the E-cig
If you want to be anal, you can heat shrink them, but this is an emergency and I somehow doubt you have the time for such niceties ...
Oh, well ... if you must ...
Having said that, it would be way cooler to have a permanent socket on the end of the e-cig that could attach to a plug coming from the battery back ... now THAT would be groovy! (and defeats the title rationale i.e. "EMERGENCY etc" ... still ... )
Step 7: YOU'RE DONE!
And as a point of reference, I've been vaping a hacked, re-booted ezi-cig for the entirety of constructing this Instructable (my first) and it's still going strong.
It belatedly occurs to me that there's also no reason why you couldn't prise off the inhaler end cap and re-saturate the wadding with a few drops of e-juice, making the thing a dodgy but ongoing plastic-fantastic e-cig that you always have at hand in times of need.
Thanks for reading!