New to vaping, I bought all the pieces separate and made my own "starter kit" using 2 XL 380 mah batteries instead of the standard 280 mah sized ones. I also bought a PCC, the "old" style USB charger (you just push it in, not screw it in) and a wall charger w/USB outlet on the back. My problem is charging the XL batteries. Seems they take forever, and never fully charge via the PCC, even when it's plugged into a USB port on my PC. As for charging the XLs with the USB charger, 1 of the XL batteries charges fine, the other won't hold more than an hour or so worth of charge... then it dies. Is this a problem with the battery or the charging methods? I'm considering buying the "New USB charger", which has a little cord length to it, but it, too, appears to be the type you just push the battery into, not the threaded screw in style. Which is best to charge the XL batteries? Anyone else have this issue?