Hi, about a week ago I bought the vision spinner 2 along with the mini protank 3 and so far im very disappointed in the battery. it was working fine for the first week of use with the variable voltage going between 3.3 and 4.8 volt. I typically kept it a little above 3.8 volts because that was perfect for me, I liked a nice casual mouth hit over those sub ohm throat hits. about a week into it the button was already having issues. it would stick if I pressed it the wrong way keeping the battery on longer than I would like to and decreasing the amount of life in my tank. it lasts about a day for me before I have to recharge it and it takes 4 hours to recharge which is very good in my opinion for an ego battery. Very soon after I discovered the button was sticking the button was stuck into the "on" position permanently making it so when I press the button it would not click but it almost had a touch-sensitive feature and so I would press it and it would light up without the button moving at all if that makes sense. it was very uncomfortable when I vaped because I had little to no assurance that my vape was going through. the only assurance I got was the light that was covered up by my thumb. the first day I had it a little bit of paint chipped off of the button showing the stainless steel. the battery life is good for a small time vaper trying to buy what their friends are getting for cheap but it is not the ideal device for a seasoned vapor or a smoker trying to quit like in my case.the variable voltage knob is irritating to someone with OCD because there are four places that it can click into: 3.3 v, 3.8 v, 4. 3 v, 4.8 v.when you have it on one of the clicked in settings, the knob rattles around. when you put it a little above the quick setting it doesn't rattle so that's nice but if you have OCD and you need it to be on one of those clicked spots then the rattling will drive you crazy. it's a 1600 mAh battery and does last quite long for an ego but for a quitting smoker or someone who smokes higher nicotine juice or more frequently this will not be your device. I now have the MVP 20w coming in the mail and I recommend to any starting smoker to get a battery at least $35 or up if you want something dependable
Sorry for not editing my paragraph
Sorry for not editing my paragraph