I just recently purchased one of these at my local vape store because i was in need of a charger immediately, but this is the only charger they had. I asked the guy if these are legit because i have never even heard of this brand and he just said "we sell a lot of them". So i am hoping this is a good enough charger for emergencies. i dont plan to use it all the time, but i dont want it messing up my batteries or anything (I have a pair of Samsung 25 Rs). I have searched every where for some kind of review, but i am not finding anything. Anyone else heard of this charger?