So ive had the copper-R2V2 for a while and i love it but i was looking at getting more batteries for it as back ups and i decided to look around for other, higher Mah batteries, other than the 14500 that is normally used. I ran across the 17500 which is a higher Mah and it has almost the same dimensions other than being SLIGHTLY fatter and SLIGHTLY shorter...when i use the 14500 batt i have a little room to work with in the "fattness" department and i think the spring will still make great contact even if this 17500 is a mm shorter...has anyone else tried any other batteries with their copper? if so..what version? how did it work? did u need to make any modifications? i vape at 3.7 and 6v so options for either are good! Thanks in advance!
