I have been using the kit for a few weeks and the battery last most of the day. The recharge is quick typically less than an hour, but if you don't have a spare that could be a long hour. The battery and nautilus mini are made for each other and provides a very streamlined designed although it will a bit heavier than you evod kit. The new Bottom Vertical coils are the best coils I've tried on the market, you won't be disappointed overall. The MVP's just seem to bulky for my liking, but do have a great battery life. We have them on special at our store cjvapors.com for 59.99 and do carry the MVP as well if your interested!