bushesent

I would recommend using a baby beast by smok it's a sub-ohm tank. I used in myself when I started vaping it works great with all kinds of juice. an it has a good variety of coils you can get for it. you can get it online for around $30 and the coils at my local shop for about $3.50 it may vary  where you are located but it shouldn't be more then $4 a coil 

You can find them on sale, but expect anywhere from $4-8 each to be an average price, depending on the brand and where you buy them from.  I've bought most of my batteries online, but I also picked up several LG HE2 from my local pharmacy (in the medical supplies section - they are commonly used in C-pap devices and other things that require battery back-ups or portability).  When I find them on sale for $8-12 per pair, I try to stock up a few extra pairs... at least once per year.  Their life-span is measured in charging cycles, not years, so expect most every (quality) battery you buy to last 300 cycles, minimum, before they begin to show longer charge-times and begin to hold less and less charge.  Many of the newer batteries boast 500-1000+ cycles, but they've not been out long enough for anyone to have proven they last 2-4 years of daily use, lol.
Be wary of buying batteries from eBay, or overseas online stores.  If the price is too good to be true, it probably is.  Batteries are a huge target for knock-offs or re-wrapped crap.  Sony batteries (for a while) were the worst... for every 10 you'd buy, at least half would be clones/re-wraps/knock-offs.
The batteries sold by the VT store are guaranteed to be authentic.  
As mentioned above, always label your batteries so you know when you bought it, as well as a letter or number so you can maintain rotation.  All of mine get a date of purchase and a letter-code so I know which one to use next.  If you use a mod that require 2 or 3 batteries, they should always ... always... be kept married, and rotated inside the device.  For those, I label them with a letter for the married sets, and two numbers.... first number tells me it is a 2 or 3 battery set, and second number tells me the order... A31,  A32, A33, B21, B22, etc. (you'll never find a B34 or X23) so I can keep the A's together, B's together, and rotate their position inside the device after each re-charge cycle.

Heres a link to th Vapor talk store Batts  to give you an idea of what Batts go for
 
Vapor talk store

Number one... did they also give you a battery?  If so, what brand/model is it?  If they didn't give you one, I would suggest you buying a pair (at least) of Samsung 25R (green), LG HE2 (red), or any of the other "good" batteries out there from Samsung, LG, or Sony.  There are other good ones, but those are the ones I trust.
As for tanks, a perfect starter, that will grow with you will be the Kanger Subtank Mini or Toptank mini... they're the same tank, but the top-tank can be refilled without removing it from the box-mod  

Yes it is my first setup

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Thanks smacksy for the additional advice

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Kanger subtank mini is a great all around tank

Well you got a few choices like if you want to build or use premade coils and consider choice as to the resistance your mod can fire..
Im not familiar with your Koopor V2 but I think it should be able to fire down to .02 ohm and have up to 80w available...that said then you can research a tank/RTA/RDA that would perform satisfactory for you. good luck and I wish I could have helped you more:-)
 
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