I have one as a backup if i don't have power. (camping)I have only used it a few times. No problems.
It has a replaceable 3.6v L-Ion Battery inside. Enough power to recharge a g6 up to four times in two to three hours.
To charge the internal Lithium Ion Battery, use the supplied usb cable. (micro usb male to standard sized male usb connector)
You also may charge an e-cig batt in the PCC at the same time, however doing so will lengthen the total charging time.
Halo website says Not compatible with G6 102mm or Triton batteries. It seems like it should be able to charge the 102mm G6. (i have never tried charging my XL G6 with the pcc, I have only charged my 65mm/78mm G6 batts with it)
the pcc case is to small to fit the 102mm G6 inside the case with the lid closed though the charging bracket swivels out so im not sure...