Hello
@Notfastenough812 .
You have one large decision to make. Internal
batteries or replaceable
batteries. Both have advantages.
Internal batteries, like the iStick 50w (4400 MAH), Innokin MVP Pro 60w (3800 MAH), and the Evic TC (5000 mah) are all internal battery mods. You use an usb cable to charge them. They are all "pass thru" charge, so you can vape while charging. (don't quote me on the specific mah, I am trying to recall).
Then on the other end you have different mods where you replace the battery. Kanger Subbox, Sigelei 50 or 75 w, and many many others. While they are also "pass thru" it is highly recommended to purchase and use a quality separate battery charger. (like the intellicharger i2 etc.) Most battery failures occur during recharge (from reading this forum). So besides the mod you have the added price of the batteries, and a charger.
One issue you may want to consider is temperature control. It's a nice feature to keep you from getting "dry hits" as the mod shuts down if the coil gets too hot. There are a bunch of new 'TC" mods out now, both internal and replaceable battery forms.
If you are shopping I'd suggest looking here: DEALS and STEALS -
Deals and Steals | E-Cigarette Forum (go to last couple pages)
And if you get specific to model you can try looking here :
FORUM SUPPLIERS -
ECF Forum Suppliers | E-Cigarette Forum
COUPONS -
Stores - ECF E-Cigarette Coupons
Good luck in your decisions.