I'd love to see less scared girlie-men and more people that can look up battery info, there's plenty of it out there. Single cell mods have circuits that are not as efficient and empty the battery a lot faster ( a Provari mini with 1x 18350 is good for 2ml of juice ). Stacked cell mods have more power and are more efficient, runtimes on them are significantly better, wether you measure it in hours or mililiters.
As long as you go for good quality cells and you use an adequate charger ( one that does not charge over 4.20 , even 4.21 is considered out of spec ) , you could also use the multimeter to double check that the voltage in the cells is correct, the vmax has the protection circuit built in, it does not allow you to over-discharge the batteries, has short-circuit protection, and they also claim 5 Amp , but if you look at the picture of the one with the cap taken off, those are the thinnest wires i've seen in a mod, that cannot handle 5 amps.
Overall, if the most simple battery charging / discharging rules are respected, the batteries are good quality ( seen plenty weirdos out there that spend 250 on a mod and then they want to buy batteries for 3 dolla ) the risk is no greater than using a single cell.
Most of the " omg , two batteries are scary " is caused by the fact that americans sue over ANYTHING. It's only natural for mod makers and resellers to stay away from a law suit that could wipe them off the market or worse because some random guy tries to use 18 stacked handwatch batteries in his mod.
Over here we'd laugh for 3 days while the victim's finger would heal, and he'd get a serious slapping for even mentioning a law suit over his own ignorance.
you can get bigger pic by Uploading to a photo site, then Just linking right into the post.
