Using battery power to go off the City's power grid


I'm using a Bluetti AC200MAX 2,200 watt expandable power station to take my system off the city's power grid.  It runs off a lithium ion phosphate battery with a 4,800 watt pure sine wave inverter. My total system only takes about 450 watts so I have never heard the fan kick on - it is totally silent. The music comes from a completely black background, with a huge soundstage that sounds very natural. I know that Ric Schultz has talked about these types of setups and there is a very expensive Stromtank battery system that is marketed to audiophiles. Anyone else tried this type of setup in their audio system?

Here is a link to a review:

 

128x128sbayne

The owner of the property I live on has a Bluetti AC300 that is about 25 feet from me right now......so, he is going to bring it in sometime soon and I will a/b with my Goal Zero Yeti 400. The only thing the Goal Zero does negative is that the bass is not as good as the wall AC (when I run the amp on it). This makes sense as the output impedance of such a small inverter is not very low. If the Bluetti sounds in the league with the Goal Zero but has better bass....that is nice. However, my friend with the Giandel system first started with a Goal Zero Yeti 3000 which was sonically surpassed by the EcoFlo pro......which was then completely blown away by the Gaindel 5000/2 200 amp hour LIfePo4 system he has now. My guess is that any all in one will not perform at the level of a great separate inverter.......we shall see....errr hear.

BTW.....the PS Audio Regenerators do not use an inverter......they take the AC wall power and convert it to DC just like any power amp....and then create a sine wave and amplify the sine wave with an AMPLIFIER.......same as any amp running on AC..

Purepower regenerators do use an inverter.......but run off the wall AC......they convert to DC and then back to AC via the inverter.......PS Audio uses a power amp.

ricevs,

When saying something is better, we should be more specific.  In general, sonic purity and accuracy is associated with more extended HF and tighter bass, among other things.  But the tighter bass is also less full.  If the Goal Zero is more accurate than wall AC by removing distortion, I suspect that HF are more extended and open, while the bass is tighter and less full compared to the wall AC.  Is that what you hear?  How does the Amperetime/Giandel system compare to the Goal Zero specifically for HF and bass accuracy?

I also look forward to your Bluetti/Goal Zero comparison.

mijostyn,

There are certain audiophile buzzwords that are nebulous concepts with uncertain musical meaning.  "Noise" and "noise floor" are examples.  As a musician and music lover first, and audiophile last, I am interested in tone, resolution, clarity, detail.  I don't listen for "noise."  In fact, some of the best classical recordings are from late 1950's Mercury Living Presence which have lots of hiss.  Still, the detail of these recordings is outstanding.  The issue we are interested in here with all these batteries/inverters is whether there is more purity and resolution from this approach to eliminating distortion.  That is why everyone should be interested in trying and learning the firsthand truth about these batteries/inverters.  Since you have excellent electrostatics which have more purity and resolution than all dynamic speakers, you have the most to gain.  Me too, with my Audiostatic 240 electrostatics with the Enigmacoustics Sopranino tweeters in parallel.

 

Man-0-man, The (800Lb. flywheel) was there really as simply an example of what is out there. And I guess that most of you do not have the capabilities that I happen to have either. And you would be "very" surprised at what some people "re-furbish" at home these days. Or just design/build from scratch. There isn't too much a body couldn't find a way to produce. Having simply a 'Bridgeport" mill and a decent 4" tooling lathe...

But it sounds like a couple of you already know way more about this subject "And everything else too, apparently". So much more than "I" could ever possibly even fathom to know the lofty depths of.

So, I shall leave you to it.

"Aim small". "Miss small"!

Good luck!