I have recently been looking for a replacement for my iTaste v3 . I have had several of these for just over seven months now and the batteries are beginning to fail. When I purchased these I purchased several so I could alternate while charging and avoid pass through charging although the unit is capable. Seven months seems like a relatively short time for the units to last and considering the price it seems there are several comparable options. In searching and reading I have considered moving into something with replacable batteries along with several others which I learned of here and continue to learn through some other threads. So I would like to ask of your wisdom and knowledge your insight regarding. Will a unit with replaceable batteries last longer than seven months? One that I have looked at is the Vamo5 express kit, noting it's similarities to the units I have now with vv and vw as well as an oled display. Also by comparison I have is there a benefit to pursuing this direction more so than something like the Ego One Mega Kit and also the Eleaf iJust2 Kit. Thank you in advance for taking of your time to share your insight and knowledge as well as any suggestions you may offer, all is greatly appreciated!