I just got my black 510 nicstick the other day and I'm LOVING IT, especially since I just stopped smoking. This is exactly what I needed to help with the fits and the habit of always wanting to puff on a cigarette. They look really cool, are fun to show off, and give good, smooth hits that I prefer over cigarettes. The only bad thing about it is the battery. It doesn't last very long. When I work long hours, I don't have to worry about it running out since I don't have long to vape throughout the day anyway, but on off days, I'll have the battery dead in a couple of hours. Is there a longer-lasting battery I can get? I leave it hooked up to my macbook via USB charger and hook my macbook to the charger as well. Leave it charging and don't take it off until I'm ready to hook it up and begin vaping before my shift starts. Even with 8-10 hours of charging, it goes dead sooner than desired. Also, the USB charger is extremely inconvenient. I'm very worried about the battery getting bumped or stepped on and breaking. Or, even worse, breaking the USB port on my macbook. Are there any alternatives? One more question regarding the juice. This stuff if $10 at my local tobacco store. For 18mg's. I heard these things were supposed to be cheaper than cigarettes, and I'm going through these bottles of nicotine like nothing and spending way more than I would on normal cigarettes. Is the nicotine at my tobacco store overpriced, or am I just vaping wayy more than I was smoking? I'm not exactly sure how many cigarettes 18mg's is equal to.