Hi!
I use the PCC for the 510 (also from cignot - awesome people) - I swear by it. It came with a USB charger, but all of my ipod USB to regular wall charge (or my USB car charger) units work with it. I plug it in to the wall overnight and it hold a serious charge.
It's charged my
batteries for 2 days without needing a charge of it's own!
I like it because I can be out all day, all night and not have to worry about dead batteries or charging batteries.
It's sleek, looks pretty nice (although I doubt you would order the girly purple one like I did - lol) I can toss it into my backpack or purse or stick it in my coat pocket, and I'm always set.
Although I do a lot of work (and relaxing) at my computer/laptop - I haven't found the need for a PT. The PCC keeps me going. That may change the longer I vape.... but for now it's working great for me.
Remie