So I'm very new to the e cigarette market. I shot on eBay a lot and I get a little confused. Such as the ego series batteries. Joyetech has a ego t, then there's all these other ego ts are they all the same? What's the original? Same for the MT3 tanks. There's kanger mt3s which seem to have a rough grip bottom and then there's the evod mt3s which have a solid bottom.
"Ego" is a class of battery, not a brand name. I believe Joytech made the first ones, or at least they became the most popular. Joytech, Vision, and Evod all make a consistant quality eGO battery. Anything else is likely a clone if it doesn't list those brand names. Ego T or C are just different model types of eGo batteries. Twists or Spinners are variable voltage eGo's.
The tanks are made by several manufacturers, and all have specific model names. Aspire makes CE5's and vivi nova tanks, Innokin makes the iclear 16 and 30; Kanger makes the protanks, evods, and T3s, Smoktech makes a pyrex vivi nova, pyrex BCC, and pyrex Aro; Vision makes the original vivi nova and a line of clearomizers. No brand name listed means it likely is a clone tank. The quality of any given clone will be hit or miss.