2. amps-preamps
  3. 152090-122613

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.
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Showing 1 response by tonnesen

tonnesen
137 posts
 

Not sure if this is the most recent battery thread, but thought I would share my experience.  I'm getting 50 mph wind gusts tonight so decided to switch to batteries in case of power fluctuations or loss.  I have two solar generators, an Ecoflow Delta 2 Max and a GroWatt 1300. Both are pure sine wave generators and LiFePO4.  

 

I connected my AGD Duet amps to one battery, and DAC and streamer to the other.  The AGD amps were drawing about 25 watts total for the pair.  The DAC and streamer were drawing about 40 watts.  I can run the stereo for over 30 hours at that rate. The sound quality is excellent, but with noise from the high wind I don't want to compare to wall power yet.  

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