Good advice, thanks! I have an automatic battery (no button).
I guess I am worried about blowing too much out and being wasteful....if it's not overfull, none comes out when u blow?
I blow out from the mouth end, right? Then wipe the battery end?
Yep, that'll do it.
If you're a really neat person who can't stand waste...read on. At first it might seem like alot, but really it's not much to it, and you can fill a hand-full of cartos perfectly in no time flat.
An alternative to all the drip and spin is to grab yourself a 3ml BD syringe next time you're at a WalMart or other pharmacy. They'll usually give you a hand-full for a buck (at a WalMart anyway) and they often come with a needle in the package. If there is no needle...a nice 14 gage would be good (large enough to draw the thick e-liquid into the syringe). If they get nosey and want to know why you want them just tell them you want it for a craft project (to glue something intricate together) or something
The needle that usually comes with the WalMart BD kits will be pretty small for e-liquid but should work ok given the following instructions, and they will be very sharp so keep the cap, and be careful.
Put the needle on the syringe, and use it to pry out the little end cap at the mouthpiece end of the carto. If the needle is too flimsy to easily/safely pop it out, don't hesitate to use another tool (Small screw driver, crochet needle, paper clip, etc). Just stick it in the center hole and pop it out.
If there is a rubber like silicon ring under the end cap, pry that out as well. If you see poly-fill, then you are good to go.
With the smaller needle, it'll be hard to 'draw liquid' up into the syringe by sticking the needle in the bottle and pulling the plunger...so instead, pull the plunger all the way out, and drip about 1ml of liquid into the syringe.
Next, push the needle down into the poly-fill of the carto, shoot in the liquid as you slowly pull the needle out.
Put another ml of liquid in the syringe (you probably will not use it all).
Poke it in on the opposite side and slowly pull back the needle as you inject liquid again.
When the poly-fill looks 'slushy' on the top, stop adding liquid. If you got too much, you can probably suck some back into the syringe by pulling the plunger.
Now look at your syringe. How much fluid is left? Subtract that from 2ml, and you know pretty much 'exactly' how much an empty carto of this type can hold for future reference.
Shoot the remaining liquid back into your juice bottle. Cap the syringe and put it away (or fill more cartos then put it away).
Pop the little cap back on. If it had a silicon ring under the tip, it is optional to put that back in!
Actually, I'd consider getting a drip tip and just tossing the little stock flat tips...from then on you can just grab a carto, pop in a nice drip tip, and keep the things wet by adding a few drops every now and then.
Good to vape.
Now ya know how much juice it holds...and can fill hand-fulls of the things in minutes flat with no mess, no waste. After doing a few, you also learn to fill them on sight....if you get a drip tip or two, you just keep them wet without having to mess with condoms, or popping off tips.