As promised, here is the second installment regarding advanced techniques for topping off your e-cig cartomizer. This lesson is all about knowing when to stop so you can avoid overfilling. The more precise you can be with refilling and topping off your cartomizers, the less time you spend tending to them and – more importantly – the less you waste your e-liquid.
Of course, it would take a ridiculous amount of e-liquid waste to make electronic cigarettes cost anywhere near what you used to spend on analogs, but it’s the principle. So many people start vaping specifically for the financial savings that there’s just no reason to be wasteful afterward.
At any rate, there are two methods you can use as a new vaper to help you know when your cartomizer is full, at least until you develop your own intuition.
Is Your Cartomizer Noticeably Heavier?
This one sounds a bit difficult to pin down because, of course, cartomizers are very small and lightweight. Still, though, you can tell when one is heavier than another.
Since cartomizers come in packs, you should have an empty one to compare to, which is all you will really need at the beginning. Cartomizers don’t hold a weighty amount of liquid either, meaning that if there is enough e-liquid in the cartomizer to create a noticeable difference in weight, there is enough for a good amount of vaping time.
How Slowly is the E-liquid Being Absorbed?
This method is a bit more tangible than the weight method, but it does require some practice. It all goes back to remembering that the filler inside your e-cig cartomizer is essentially a sponge.
Think about how sponges behave when used for other things. An empty sponge will drink up liquid rapidly, but as the sponge becomes saturated, the rate of absorption slows. The filler inside your electronic cigarette cartomizer behaves in the exact same manner.
As you top of your cartomizer, watch the liquid. If you are adding e-liquid because the top of the filler appears dry, then as you add those first drops you’ll see the filler drink up the liquid nicotine very quickly.
However, as you continue to add drops and saturate, you will eventually add a drop that doesn’t disappear into the filler immediately the way the others did, but instead sits up around the edge absorbing very, very slowly. This is your last drop.
You can help this last drop absorb by twirling the e-cig cartomizer between your fingers slowly until all of the liquid has disappeared. When you are new to this method, make sure to perform steps nine and ten detailed here after you top off to keep from leaking onto your battery. As you become more comfortable you will eventually be able to skip this step.
Got any different techniques you’d like to share with the electronic cigarette community? Tell us about them in the comments!



