Well, the XPV isn't a quick-change no matter how you slice it. Even if you have spare batteries with the appropriate harness already soldered on (which Protovapor does sell for $15), you'd still be looking at pulling 8 screws and them some further fiddling.Opinion on DIYing the XPV with some flux and the old 45W iron ?
The only turnoff is that harness.
However, it's definitely easier than changing the battery in your iPhone.