I really like caffeine too. How are the liquids that have caffeine in them?
You know what? I don't think that any of the coffee flavors have caffeine in them; just coffee flavor. Not positive about that though. Anyone?
To the OP - when your atomizers that come with your eGo-T kit die, or before, you'll want to get a Joyetech eGo-C conversion kit. The eGo-C splits the atomizer section into three pieces - base, cone, and head (atomizer), so you can replace just the atty. Makes them easier to clean, too.
See it here:
Ovale Ego C
They call the cone and base the "atomizer body", and you can get 5-packs of either standard- or low-resistance heads (atomizers) for about $26.
You will be doing yourself a big favor by getting some low-resistance SINGLE COIL cartomizers - stainless steel XL-size would be best, so you can either use them by themselves, or slot them according to PBusardo's YouTube instructions and use them in a Smoktech 3.5ml DCT tank. Also get a Cisco 306 1.5 ohm atomizer/drip tip setup for sampling juices, or just tasting them at their best. Nothing beats dripping for flavor and consistent vapor production, but it's not for all-day vaping - too much hassle to do all day. Between your eGo-T tanks, the drip setup, the XL cartomizers, and the same cartomizer inside the DCT tank, you will quickly get a good idea about some of the best ways to use your eGo battery.
DO NOT USE DUAL COIL CARTOMIZERS with your battery. It won't warm up two coils enough to give you proper flavor, and it will be harder on your battery.
Happy vaping.
http://www.avidvaper.com/lr306-low-resistance-bridgeless-1-5ohm-atomizer-cisco-spec/