It sounds that that store is selling fakes. yes do not go there again.. that many bad experiences can not be a coincidence. Avatar's are ok if they are real.. mooch has them at 20 amps continuous and 30 MVA (max vaping amps).. That means two of them can safely be used to 140 or 150 watts.. not bad batteries at all.
my h priv for me is the best smok device i have, and besides a bug where it won't accept "old coil' when attaching an atty (fw bug well known), it is the best smok vape i ever had. The firing bar is awesome, tc is spot on, battery cover is awesome unlike those latch type ones (like the alien's), and it fires FAST.. way fast.
Just wanted to add that, cause as many problems as i have with smok, i have scored gems like the h priv and the osub which are fantastic mods.. Really, i enjoy the h priv more then my DNA's, truly. I am hoping the T priv is identical but just with a new look and flashing lights..
PS i had a brand new x cube ultra, brand new sealed, and the led light is faulty.. um, the whole reason i bought the mod LOL.. i also bought a wismec RX300 and there was glue LEAKING from the 510.. i have never used it to this day, i wouldn't dare.. both from the same store, i reported it first day on receipt, shop owner is breaking every australian law and refusing to help me out.. furthermore, i used zip pay, and they have been talking to him for 2 weeks now to try sort it out to no avail.. So yeah, point being, some shops are just dodgy. I'm actually taking him to small claims if zip pay reply without a positive result

Cheers