can't find any reviews trying to upgrade

[demonchild1234]

I'm trying to upgrade my battery and the batteries I'm interested in i can't seem to find any reviews so i was wondering if anyone cold help me out I'm thinking of getting the tesla spider twist 1300mah or the vision vapors stylish vv battery 1300mah dose any one have experience with either of these ones[h=2][/h]

 

[demonchild1234]

or even an istick

 

[berger]

istick (or similar clone like a smart 20) is a much better choice then a twist IMO...far superior battery life (2000 mah) and better wattage flexibility...theres good reason these things are selling by the ship loads