TheMachinist

I think i got it figured out now.

The threads are 8x.75mm.
They are the same as the kr808d-1, nebula, zeus AND the 901's
I contacted electronic-ash.com about fitting 901 atomizers & carts on Vapor King Batteries
since they sell the 901 & the kr808d-1 & this is what they said:

Quote " I am told that the Vapor King battery will work on the 901 parts, the thread
are the same pattern. People have been known to do this because the KR808D
batt is larger and lasts longer. "

So, it looks like i'm good to go.
Appreciate the help though.

Side note:
I read in another thread that the 901 batts dont work too good with cartomizers
dont remember why or which thread but something to keep in mind.