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

Update on using my Bluetti AC200MAX as my power source. I finally got the fan to kick-on! I was listening to hard rock and electronic bass heavy music at fairly loud volumes. I was about 50 minutes into the listening session and didn't hear the fan  until between cuts. I repeated the last track and watched the power meter on the Bluetti. The surprising part was it never exceeded 450 watts which is basically what my system draws at idle. I'm guessing the extra quick power demands is what caused the fan to kick-on but those demands don't show on the power meter.  I'm going to keep messing with it by first, trying to repeat what occurred and second, plugging the amp into the wall and everything else into the Bluetti then playing the same songs as before - to see if the fan kicks-on again or if it was just a one-off occurrence. 

This is one of the problems with all in ones.....the fan noise. The probably better sounding Giandel Inverters won’t kick in the fan until 40% of the rated power is being used CONTINUOSLY. Having the batteries crammed right next to the inverter and the whole thing covered with a plastic cover.....means heat, heat, heat. The separate Inverters are all heatsink......and you can add as much battery as you like. The all in ones are prettier and you can carry them around and use them outdoors, etc. The separate inverter/battery systems are more than likely better sounding and way more powerful. Certainly the Giandel 5000 is clearly sonically superior to the Ecoflo Pro and the Goal Zero Yeti 3000. I would not touch another all in one.....I use the Goal Zero Yeti 400 becuase it cost practically nothing (less than $400 delivered) and I have no money for something better. I removed its plastic case so the fan will not come on.......my usual Frankenstein mod.....he he.

Yeah, I’ll probably disconnect the fan if turns out to be a continual problem.  

ricevs,

I don't see the point of adding as much battery power as you like.  For example, your friend uses two Amperetime 200 amp-hr batteries.  At 12V, this is 4800 watt-hr if the batteries are fully charged.  His Giandel inverter is 5000 watt-hr continuous or 10,000 burst.  So I don't know why Giandel recommends minimum battery of 500 amp-hr, when 400 amp-hr should be enough.

More batteries means more charging time required.  To begin, my EQ and CD player each draw 20W, so only 40W-hr is required from the battery for 1 hour of daily listening.  A single A-time battery with 2400 W-hr will last me 60 days until it is drained.  Only monthly recharging should be OK.  This alone should let me know how much benefit there is with the battery + inverter at a minimal cost.  If results are good, I'll add my Mytek Brooklyn power amp.  On peaks, it needs 1000W, but for routine listening to my classical music which most of the time uses only a few watts, I still estimate that recharging every few weeks will be fine.

I suspect that the purity benefits of battery-inverters are mainly at low SPL's.  At loud levels, sbayne didn't even hear the fan coming on, but heard the fan only at low levels.

It is unfortunate that the country such as the US has such an inadequate, outdated, unmaintained system of public utilities that so many citizens resort to battery power to insure reliable, stable, sufficient electrical power and endure the cost, trouble, and inconvenience of such battery systems when the rest of the world has moved on to AC power!