I'd like to chime in on this. Fuck all rewrappers that intentionally mislabel their shit. Fuck them in the ass with a 2 foot pineapple. They knowingly put people at harm because they want to make a buck. Uninformed people have no clue and are exploited by these companies. Counterfeit batteries are just as bad, but a bit different of a ball game.
Now, rewrappers such as Pegasus and Craving Vapor are perfectly fine IMO. Pegasus took the time to source A bin batteries and put their true specs and limitations on them, making it easier for new vapers to get the right batteries for their application. If your already a battery aficionado they are kind of pointless however. And Craving Vapor clearly states their batteries are Samsung 25r's and doesn't lie about it.
Efest, Basen, MXJO, Asoibo, Vamped, Subohm Cell, and all those other companies can eat a giant bag of veiny dicks followed by a side of whale shit.