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, DPA Bigger Bit, Arcam rDAC, Micromega DAC, Roksan Kandy MKIII, Sony CDP227ES, QA550, Systemdek IIX & mods, Chiara & Andante, WNA MK3 & Cascode, Audiophileo, Off Ramp 3, Mission Cyrus One & 751's, Headroom The Little, HD580, HD590, HD600, HD555, K701, & ATH70 Electrets. Too much wire !! - Kimber silver stuff and NVA cables - AND a bottle of Glenlivet Whiskey & a lot of Mods.