Audioquest cables: replace the DBS Battery pack.

While I have no association with AQ, it seems many are misunderstanding what I believe they are claiming (whether true or not). The DBS is supposed to keep the cable dialectric "formed", that is, broken in. So comparing the cable with and without the battery connected should not actually make any difference. The better test would be to compare two of the same cables, after disconnecting the battery on one of them, after some period of time (perhaps days or weeks). If DBS works, the one without the battery connected would need some re-breakin time before it sounded the same as the one with DBS.

Has anyone tried this?

Bernhardknoop, your experience confirms what I understood should happen.
Elduende, I would guess that AQ has discovered that while 12v works, the higher voltages are even more successful in keeping the dialectric formed (not influenced by music signal levels or time). If you bought your DBS early on, your dealer might contact AQ and see if they will give you the additional battery pack as a courtesy, as they almost immediately began using them. If not, it seems like a reasonable thing to do, if not too expensive, especially if you like the cables.