Yes, the device is the same and the atty the same.
I rewick after every bottle and the fact that I only need 1 battery per bottle is the reason I have moved over to 21700s .
I actually use 21700s more than 18650s and the main reason is the reliability of one battery per 1 bottle of juice for me.
Wait
What!
You have a squonker with an 11ml capacity bottle!
I need to chat @Christos
Lol
That would halve my "pitstop payload" compared to what I'm doing currently with the Reos!