Just bought a new Manhattan v2 by Continuos Current with a magnetic button, I like it, it hits hard with a new battery but I have to change the battery every 2 hours (bran new batteries) the same addy and build last 6 or so hours with my other mods and same batteries. I talked to my local vape shop and one of the guys said magnets drain the batteries and decrease there life span. He is the designer of a popular non magnet button mod in my area so he might have a bias, and I cant find anything on the internet about magnet mods draining batteries yet my mod is still not lasting. Any other reason the mod might make my batteries last as long?