I've been using blank cool carts for a couple of years now with the automatic vapor titan batteries and have been really happy. Lately, though, it seems like only about 50% are performing up to par. I fill them the same way I always have and know that they are well saturated before use. More often than not I am not getting a good strong vape from them. I'm not sure how to explain it except that the vape seems really weak no matter how long I use them. I'm finding that I'm tossing at least half of them out within the first few hours of using and it is becoming quite costly. I'm using the same juice I've always used as well.
Has anyone else had this problem?