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, SoTM SMS-100, Sony CDP227ES, QA550, Systemdek IIX & mods, Chiara & Andante, WNA MK3 & Cascode, Music First Phones, Audiophileo, Singxer F1, SoTM USB cards, Mission Cyrus One & 751's, Headroom The Little, HD580, HD590, HD600, HD555, HD700 K612. Too much wire !! - Kimber, DIY silver stuff and Stereovox cables - AND a bottle of wine & a lot of Mods.