Well I'm not SUPPOSED to vape all the time but I do anyway. Right now I'm using two eGo batteries (650 mah) and I've got ultimate ce2's on them both. I'd say while at work I go through about 2ml. This includes the drive home. I see your mini there has 700 mah and the standard has a whopping 2600 mah. Let me ask you this, on the puresmoker site I see that the dimensions for the mini and standard appear the same. I don't understand this. Can you ball park the size difference?