Hello everyone! This is my first post and I need your recommendations. Fairly new to vaping, quit analogs a month ago today. Started out with Ego-T 900 mah. Quickly figured out I don't like the tank system because of muted flavors, slow wicking, maintainence, etc. Was using 900 mah battery with SmokTec mega dual coil cartomizer (great cartos btw). Decided to give 3.7v box mod from mad vapes a try. I love love love the way the box mod feels as opposed to the stick battery. Using ultrafire 14500's in box mod and it seems like they die very quickly vs the ego battery. What's your recommendation for either a different box mod or longer lasting batteries? I ordered some trustfire 14500's tonight just in case it is a battery issue. Also, when the battery is getting low it makes the flavor of the juice taste kinda oily, is this normal?? Thanks in advance for your help.