When I first started vaping it seemed like a batt would last almost a day. That soon changed to a couple of hours lol. I had my batt go out on me early one morning and had to stop and buy an expensive gas station ecig just to make it through the day because I couldn't bear the thought of smoking a cigarette. I found a 5.00 makeup case at KMart that has three long pockets just perfect for my Riva's and a net bag on the inside that holds my cartomizers. I never leave home without at least three batts and four carts that I have prefilled. Then I just tuck my bottle of RY4 along the bottom of the batts and I am good to go! I LOVE the RY4 from LF but had to buy Dekang last time as LF was out. Different taste and I am looking forward to ordering from LF when they have more come in.