Im relatively new to the vaping game and after researching for a couple of months, I figured I would start off with the Kr808d-1 battery from V4L. So far it has been AMAZING and I i've been off analogs since I got it. But now im having a little problem with the vapor. When i first got the battery it gave off a warm vapor with a nice TH, and for some reason now its giving off cold vapor with a noticeably less TH. Is this because the batteries are dying out? I got my XL about 2 months ago and my manual standard about 1.5 months ago so they are relatively new and I cant imagine that they battery would be dying out so soon. 