I've been messing about using the battery but I;m not sure the best option. 19v is perfect for the IBM X60 I'm using.
Black Box 2, Benchmark DAC2D, Arcam irDAC, Micromega DAC, Roksan Kandy MKIII, Sony CDP227ES, QA550, Systemdek IIX & mods, Chiara & Andante, WNA MK3 & Cascode, Audiophileo, Singxer F1, Sotm USB cards, Mission Cyrus One & 751's, Headroom The Little, HD580, HD590, HD600, HD555, K701. Too much wire !! - Kimber, DIY silver stuff and Stereovox cables - AND a bottle of Glenlivet Whiskey & a lot of Mods.