+ So I have a mini protank 2 I just got a week ago with a clone ego twist 1000mah and an authentic 900mah ego t.I was using my original protank until the glue came undone. Anyways I was showing my friend that his carto can fit my twist(seemed like a 510), and it did. I'm not sure what happened but afterwords when I used the mini 2 it tasted burnt. I had to turn the voltage down to 3.4 or 3.5 for it to taste normal. before this it only tasted burnt if i twisted it past 4.2. I was wondering what happened? I thought it might be the tank and I tried the mini 2 on the ego t and it too fluxuated from burnt to normal and I didnt use his carto on it nor his battery for my mini 2. keep in mind I put a brand new 2.2 ohm head on it only like 20mins before. I'm baffled.