Going Battery Powered


I have a number of components that run off of 12V DC power. This includes my DAC, preamp, tube buffer, etc. I’m looking into powering them with batteries instead of 120V AC power supplies. Does anyone have any input on if this is worth my time? Seems like DC power is the cleanest power you can get in this situation. I’ve heard batteries can have reduced dynamics but I plan on using as big of a battery as is reasonable, most likely a large sealed AGM type battery. Do I need power supplies/voltage regulators if I use a large battery and only power low draw components (no power amps); e.g. the max amp draw is probably around 1-2 amps, if that. If I do, does anyone have a link to a design for the power supply/voltage regulator? Thank you.
128x128mkgus

Showing 1 response by itsjustme

first,to the OP, Great! insightful question. And, in both theory and reality, yes.
now, practice is the hard part.  Back in the 80s, a friend and ex business partner suggested and ran, so "battery parties" where 8+ folks would get together and donate, for a while, car batteries so we could get + and - 48 Vdc with stupid hgih current (commenting on a sub thread above).
Sound: superb. Practicality: Zero.  But that was 40 year ago.
Today, for low power draw products, Lithium Ion batteries are a great way to go - but probably you will have to roll your own.  Charging is nto as simple as hooking p 12 (or whatever) volts.
 It is quieter. "blacker" as one put it. And more nuanced and dynamic.  Compared to a really good power supply, its very subtle. Compared ot the typical one, well.... your definition of typical may stray from mine. I'm not impressed.  Everything I build a power supply for gets way better.  Off topic note: wait for my rant on an Intel NUC as a ROON ROCK server, and the lessons in reality i learned.... but i digress.
It will be a project.  but the end goal may prove worthwhile.
G