So for the last couple years ive been using a ego 650 battery with a 510 atty and cartridge. ( I know, old old school ). I recently upgraded to some ego twists and evods. This combo works great together. How ever it is to large to stealth vape and carry in pocket. The tanks don't seem to give the throat hit on the standard ego battery which I believe is 3.3 volts. sooo......... my question is.... does someone make a battery that is the size of an ego 650 that vapes at a set 3.8 to 4.0 volts?? It doesn't need to be a vv, just a higher voltage then the standard egos. thanks







