AFAIK, the janty yentl kissbox (which i own) isnt compatible with any other e-cig parts, although it may be compatible with some version of the "great white mini" which, to my knowledge, came out a little before the dse901 and was mostly overlooked.
There is a USB battery charger for the yentl, but there is no usb PASSTHROUGH, which i think is what you are asking for.
So you can plug the charger for your
batteries into a usb port to charge, but you can't plug the yentl directly into the usb port like you could with, say, a janty KISSbox classic or a dse901b w/ usb passthrough battery.
Theoretically if you had a spent yentl battery and a soldering iron you could probably do this
mod yourself.
Check out my review of the yentl if you want to know more about it:
http://www.e-cigarette-forum.com/fo...y-yentl-kiss-box-extended-1-month-review.html it's a great e-cig imo, not good for your first (dse901 is better for your first), but nice for a stylish smoker and puts out great vapor.