Hi, so I have several different brands of 18650 batteries but I'm getting ready to pick up the new Geekvape Aegis X, I wanted to get some new batteries. I have been reading up on it but I'm so confused, I don't vape very high wattage It's always under 50 watt, 45 usually being the most, so what would be the best batteries for long activity? Any input would really help. Thanks