From what I have read at batteryuniversity.com batteries last for about 300 full charges when charging with the correct charger and not letting them go completely dead. Nothing wrong with getting a starter kit but watch out some charge more than it would be separately. That being said, some also charge less, and you should get one that basicly makes the charger and maybe a case free. I suggest starting with an Ego kit first, as I wasted a lot of money buying a njoy, then Blu, then mega 510 penstyle and finally got the egos. At least get something like a joytech 510 starter if you want something cigarette sized. I am already wanting a VV/VW like a vamo! Pretty new vapor here, and definitely still a noob!