So a few months ago I bought a fake vision spinner 2, the battery on it lasts for like 5ml of e juice though and I decided to buy a new one, the battery life seems way under it should be and its really frustrating me dying so early. Anyone know what the causes of this might be, the amount of crap that keeps happening to these batteries tempts me to just go out and buy that silver carvel since I know there is no way it would be having problems like this, even though I dont rebuild...