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

viber6 - I run my total system from it. I've never tried it with just the front end equipment. The total draw, including my amp, is only 450 watts so the AC200MAX is barely breaking a sweat (it has a 4,800 watt pure sine wave inverter with a 2200 watt maximum load). I've never heard the fan kick on. I would NOT say greater resolution, transparency or more HF extension in the audiophile sense. I would say a more open but immediate sound coming from a completely black background. 

The only audiophile reviews I've seen are regarding the Stromtank units but they are way out of my budget. The reason I've suggested Hobotech reviews is he really puts the inverter to the test and shows you his results in real time. The most important part, to me, is when he determines if it will hold a perfect sine wave at 120 volts/60Hz into its maximum rated load. I personally wouldn't buy a unit where the voltage drops under full load. His review told me the AC200MAX holds the voltage and sine wave for OVER 2200 watts. Hobotech also does a test where he shows the noise coming out of a small Peavey guitar amp. Many cheaper inverters add fairly significant noise to the Peavey guitar amp test. The Bluetti AC200MAX does not. There are some very good units out there now a days. I'm not sure that was true even a couple years ago. The technology is really moving along with portable electric.  

Viber and anyone/everyone else,

Why don’t you become the Inverter tester for the world. Buy the Bluetti, buy a 2000 watt Giandel, buy the 5000 watt Giandel and a couple of the 200 amp hour batteries.and a charger and OFC battery cables.....and do the tests on your system and let everyone in the world know......you can try the stock versus OFC cables, one versus two batteries....footers under the inverter, etc.

You can afford it. I bet you have that much on a credit card (maybe $4500 total?). Whatever you do not like, you return for a refund. I would do this.....but I have no credit/money......You have money....you can do this. Why are we always waiting for someone else to do things for us?......It’s way more fun to be on the leading edge.....be an explorer....have some fun.

The Bluetti does not give you access to full power on any outlet. The Giandel has a terminal block that you can hook up a Furutech outlet to, a power strip to or hardwire a cable or whatever for full output. The Giandel also allows unlimited power upgrades (as much battery as you want) and can use whatever battery you like including just trying it with a car battery......way more flexible.

Of course you can start small (for the toe dabblers).......just buy a 2000 watt Giandel for a lttle over $300 and hook it up to a car battery......if you like that then buy the 5000 watt Giandel and if that sounds better than return the 2000 watter......then get a single 200 amp hour LifePo4 battery and compare to your car battery......then try another battery......etc.......come on.....you know you want to try this.....yes, you do.

sbayne, thanks.

tksteingraber, thanks for sharing your great results with the Powerbright. Which and how much battery storage (amp hr) are you using with your unit?  I looked on their site, clicked on the user manual for their lower quality modified sine wave inverters.  It seems that even lower battery power can still be used with any inverter, although the inverter will not provide as much time of use.  The dimensions and weight of the Powerbright modified sine wave inverters resemble the pure sine wave inverters of Giandel.  Of course, your pure sine wave inverter is stated to produce the purest quality from Powerbright.

Perhaps the most attractive package is from Giandel, with their 5000 watt hr pure sine wave inverter, fed by two Amperetime 200 amp hr batteries, for $2800.  Next attractive is to save $800 and get one Amperetime battery.  See the pictures from ricevs' site, tweakaudio.  The advantage of Powerbright is their east coast location with phone number.

Right now I first have to figure out how to ground the inverter from my 3rd floor apartment.  Giandel says grounding is essential for safety reasons.  

You can ground an inverter to any true ground point......like the third pin in your wall....There are some really old buildings that have no true ground....this is certainly not to code and probably illegal.  I lived in a building like that in Berkeley back in the 80s.....I had to put a clamp on the cold water pipe to ground my system.

Thanks.  So I can take a ground wire and stick it into the 3rd pin in an unused outlet on a power strip?  Are there good ground wire ends with a thick single plug for a secure connection into the 3rd pin?