Just got my ProVape-1 yesterday. Since it came with the batteries already charged, I started using it as soon as it arrived. About 3 hours later the first battery was gone? At first I thought my cartomizer was bad, but then I put a new battery in and it vaped fine! I got the AW14500 High Performance batteries. I'm using 1.5 ohm LR cartomizers, which I understand will drag the battery down some, but I'm used to vaping all day on one eGo battery! The ProVape website says the batteries last from "7-10 hours of strong vaping"....So do I have a bad battery or is this normal for this battery?