When I first started vaping, I was very worried about my cartomizer or atty dying on me while I was away from home. And nothing I used carried enough juice for me to leave without bringing juice with me. So I always carried a box with extra "stuff" in it. An extra battery, parts, juice, etc. That's a hassle. If it wasn't so hot here, I'd put a box in the car and just leave it, but the heat would probably kill a battery or juice.
But as time went on, I never had a problem where I needed that box other than refilling juice. And once I started using EMDCC's, I didn't need to refill juice while I was out and about.
So I quit carrying the box.
Last night, that came back and bit me. I went out dancing. Driving over there, my ego was vaping fine. For the first 30 or 45 minutes, it was vaping fine. Then it started giving a bad taste/smell. A burning smell.
I'm still smoking a little (not much, compared to before) so I had a pack of cigs and I smoked a lot more than usual. I'd go awhile, get antsy about a cig, light one. Within a few puffs, I wanted to put it out. Cigs don't do real well if you put them out and relight them later, but I did that a fair amount.
I've no idea what happened to my EMDCC. I know I had filled it just before I left, so it wasn't out of juice. It's the first time I've had one not work correctly, other than getting gunked up after a week or two of use. And getting gunked up doesn't kill it all at once - you start to notice it, and it keeps working (suboptimal) long enough to swap it out when it's convenient.