Before I say anything else, please, don't think you have to pay that much for anything
ecig related! White cloud is extremely exepensive for what it is and the green smoke is like using windows 95 compared to what we have today. I'm not trying to offend you or tell you you've made a bad choice, but honestly, please think about using something more up to date that's going to cost a lot less.
If it's possible to return your greensmoke
ecig for a refund, I would.
Aparantly greensmoke is an E9 battery with a D2
threading as I saw in
this thread. Not sure if that means Kr808D-2 or not.
You can get blank cartridges for the greensmoke in kr808d-2
here (sold out right now but at least you know they are sold) and fill them yourself. These are half the price of the ones at white cloud and then some and I have no idea if the white cloud ones are even compatable with the green smoke. Kr808d-2 isn't a popular threading so you might have a hard time finding them in stock or for sale at all.
Alright, back to what I was saying though: a cirrus 3 x kit from white cloud costs $349. What is considered
the "best" ecig on the market right now is about $159 and I mean it is literally centuries ahead of the model you have and the ones on white cloud. It has a voltmeter, digital display, variable voltage, microprocessor and it's built to last among other things. Comparing that to something that you have to recharge every hour with no special function and trying to charge more money for it is a little scary.
If you want an ecig that looks like a cigarette, I highly recommend any one of these vendors:
Smokeless Image | Only The Best Electronic Cigarette | Starter Kits
G6 Basic Starter Kit - G6 E-Cig
E-Cigarette Starter Kits | Electronic Cigarette Kits | Electronic cigarette starter kits
You'll get much better eigs from them. Worlds apart for much, much less. They are all Kr808D-1 threaded and the only difference between them is the branding, so price isn't a factor in how good they are between these three vendors.
Please consider upgrading, even if you don't want one that's cigarette sized (see
liberty flights for a wide selection - use discount code 'october20' for 20% off), anything is better than green smoke or white cloud or any other site claiming their ecigs are the best and charge $300 for something that costs $20, if that.