Lamar Owen wrote: > On Saturday, July 02, 2011 09:00:54 AM Jason Pyeron wrote: >> You will either need many different batteries for the different voltages (1.2, >> 3.3, 5, 12, -12, -5) or a DC ATX power supply (not cheap and not very powerful >> until the 48V input variety) > > A company called PowerStream produces DC input ATX supplies for 12V, 24V, and 48V input, all with up to 500W of power. The 12V input page is at http://www.powerstream.com/DC-PC-12V.htm > > We have a number of their -48V input supplies in use. No, the 500W version in 12V input is not cheap. There are smaller and cheaper 12V solutions Like the picoPSU's: http://www.mini-box.com/picoPSU-160-XT Ljubomir