As I got more knowledgeable about
vaping I have to say, I became retroactively terrified at practices I had engaged in in the past.
With that said, yes, it's really buyer beware on many things vape. Sadly, some vape shops are really looking for a fast buck (or not knowledgeable enough themselves) that they will often carry and sell dangerous equipment. If I really needed a battery, I'd almost be tempted to go get a recycled one than buy one from a vape store (not that I would do either).
The good news is, for the most part, given the amount of
vaping that happens, most accidents and problems you do really have to work hard to achieve, although it is achievable. MOST times, a poorly rated battery in a REGULATED mod will simply refuse to fire.... unless and until it becomes so stressed that bad things happen. Some mods are overrated, and promise a "highest wattage" board that no authentic battery can achieve.
Just keep asking questions until you feel knowledgeable enough to proceed. With the proper care and equipment (which includes batteries and chargers)
vaping really is perfectly safe. It's just a learning curve until you get there. ECF is a great place to be for that.
Anna