Looks like Kanger has a new head design for their EVOD, ProTank, ProTank 2, Mini ProTank, and UniTank.
These came directly from Kanger and I took a bunch of photos of the differences below.
I also looked closely this time to see if there were resistance/no resistance joins in the original heads.
Both heads appear to be using resistance/non-resistance wire and joins. The differences that were noticed were the knurling on the post, a slight change in the body design, and what looks to be a different material being used for the plug. I burnt up both plugs to see if one was more resistant to heat. They didn’t appear to be, but the old plug gave out a horrible burnt rubber smell and the new one did not. Hmmmm…
Note that the old or original head was used for a bit.
Sorry, I haven’t vaped them yet so I can’t speak to performance improvements.
Here are the photos for you…