I too had a bad experience when with the first device i tried. not going to name any names but it is from a certain company that likes to hire actors and run a bunch of commercials claiming how great their "azure" product is. I would highly recommend checking out grimmgreen on youtube and see what he has to say about the ego-c twist. This battery tipped with a vivi nova tank that pbusardo and many others give shoutouts about may just turn out to be a lifesaver for me. I give both these guys props for their informative vids and taking the time out of their busy schedules to inform newbs like myself.