PowerJack 30000Watt 48volt LF SP PSW 2 box inverter 2021 model 189 pounds

.5C max discharge would be ????

560amp LiFePO4 battery ====

560Amp battery x .5C Amp discharge rate = 280Amp max discharge rate recommended for off grid solar... this would be for 32 cells in a 2P16S configuration if it was the EVE LF280K cells.

this is the recommendations from the electrical engineer.

I am not an electrical engineer.....not anywhere close either....just learning as I go in the DIY off-grid solar....

so feel free to tell me why I need to see it differently. thanks for all replies...

one thing i know is sometimes writing on a computer is very easily mis-interpreted... 

again I am a neophyte in many of these things... 

have a great night ....😎

that is neat except the city being a pain in the rear for you and solar things.... I worked in New Mexico for most of a year with a lot of time in Roswell, Moriarty and a few other places. ....

But then again a safe UL listed equipment is also a good thing....

I try hard to follow the electrical codes etc and be as safe as I can...

do not want anyone hurt due to my work....

Sorry, my post wasn't clear. I was saying there's no telling what you'd get out of the powerjack.
I think Sigineer should do close to it's rating (90%), albeit with an ugly sine wave.

that is neat except the city being a pain in the rear for you and solar things.... I worked in New Mexico for most of a year with a lot of time in Roswell,

The utilty and HOA  control the solar in the city .   The city manager  say the house  are so close together that one house on  fire will  burn down the whole block .  That  why I hide my  solar stuff  in the back patio  but the  solar panels are on the  roof  but  can not be seen from the street .   

 Do you  see any  UFO  in Roswell  ?       I  see  some  in the  direction of area 51   .    

Sorry, my post wasn't clear. I was saying there's no telling what you'd get out of the powerjack

The  powerjack  AMG  is so mix up  that  I  do not know what is inside  and what is the output .    The  30kw PJ  which now sell  for 5000 dollars  on ebay  with the ASL11.0  transformer  will  do  9000 watts (according to someone on this forum)  with the  rev 10.3 control board (no longer available)   but do not know what it will do if it has  the  rev 11.3 control board  .    

they had a lot of theme type tourist alien things in Roswell...that was about 14years ago when i was there....for most of that year....

the 30000 watt PowerJack LF PSW SP inverter I ordered is not the AMG version.... That would be great if it would do 9000 watts...or more! 🤔🤔👍

then, possibly 2 of them would be able to do 18000 watts....or more! 🤔🤔👍

I will post pictures and more information when one arrives via the slow boat ride, then UPS or Fedex delivers....not sure who but the 189 pounds in 2 boxes will surely give them a workout....

I looked at the 18000 watt Sigineer for $3799,,,,,,Amazon advertisement says it will run 18000 watts continuous and at somewhere from 85 to 90 percent efficient with the Sigineer 18KW inverter. I think it says they have 10 years manufacturing experience...

looks like the sun will be out today...😎

PowerJack advertises some terribly expensive inverters....who knows what is actually in the box,,, especially on the ones where they do not give the complete specifications...

cheers all, have a great day....

Don't hold your breath for that one......

...I for one will be quite surprised if they do.

PowerJack 30000 watt LF PSW SP inverter in two Stainless steel boxes...

no one seems to know anything about the windings diameter or numbers so far on the PowerJack 30000 watt PSW LF SP inverter or the ASL number....not an AMG version; so time will tell....

maybe sid or sean knows what are in the windings??? as they seem to say the transformer over heating with the enamel coated aluminum wire windings of inadequate  size  is part of the PowerJack problem... what is in it???

I likely will not run 9000 watts continuously very often but the extra ability would be great for heavy loads periodically....😎🤔

maybe I will send them a skype message. for earlier information....

i don't use skype much but i am sure i can get it to function...been a couple years since I last used skype....

maybe sid or sean knows what are in the windings??? as they seem to say the transformer over heating with the enamel coated aluminum wire windings of inadequate  size  is part of the PowerJack problem... what is in it?

I do not know the wires size  or how many strands  per windings  and  Sean  say PJ  never send  one  for him to repair  so I think the  30 kw  is the best  inverter by PJ  for 5000 dollars .   There is no review  on youtube for the 30kw PJ .     I  do not have enough  battery to  run  8000 watts at night .    I  do not how you get the 30 kw for 1500 dollars  unless you happen to be  PJ  best customers  .    

Not a clue.  PJ designs are completely separate from GS designs.

All about reducing costs...ends up reducing material...ends up reducing output max...

the 30000 watt PowerJack LF PS SP inverter the inverter transformer box weighs 146.96 pounds by itself...; so they must have not reduced the costs on that part...???

the control box weigh another 44 plus pounds....

not as heavy as the 18KW Sigineer but still heavy.

I think they sold 7 of these recently if Ebay numbers are correct...

I do not know but perhaps I made their good customer list. but the advertised price was $1599 and they accepted $1500 .... this was the one that is yes being advertised for $5000 now on some places... I did not touch it for $3000,,,, but when I missed out on another smaller rated one ... a wild hair let me punch in the 1500 dollar offer and they accepted it...

 the message said this: 

 pls feel free to add it for VIP window service in the feature, tks.

what does the GS-12K have for a weight on it transformer???? to decrease the shipping costs???

I would tend to think the iron composite toroidal core outweighs the enameled aluminum wire...

but then again I have never unwound the wire and weighed them separately...and never will....more into learning how they work and a plug and play type of assembler...

I skyped with Helen and Jack in past years but nothing much recently.

cloudy and a bit dreary but at least the rain is soaking in and there is no horrific wind at the moment....👍

there is no charger and ups on it and no LCD screens but has the plugs for Thor's Note Book... so I think it is a more basic model than the $5499 two box model 30000 watt PowerJack LF PSW SP inverter they now advertise...

I do not want to connect to the grid....so no need for charger or ups options...

and I have a two screen LCD Thor's Note Book which I rarely look at, so do not need that part either...

🤔

I suspect the main difference is that the transformer is sized appropriately for the control board capabilities.

I get the impression that powerjack is overcompensating the transformer for deficiencies in the control board. So probably both larger/heavier transformer, and less power than the GS12 would be because they're not solving the right problem.

hmm. Aluminum is a lot lighter, but i think volume wise there would be an awful lot more wire than core.
Of course, the core is just a carrier for magnetic flux - essentially a necessary overhead weight-wise, so the goal is to get the lightest possible core with the most amount of wire around it with the best magnetic transfer. I guess iron's high ferromagnetic qualities are enough to make it worth the weight. Hell, even the word "ferromagnetic" hints at iron being exceptionally suitable.

Having only made some toy "rod" transformers myself, the core was significantly heavier than the wire. 😕 I'd guess that's probably still the case here.

Dunno on the first.  And the last is simply what it is.  Our goal is to make a true 12kw inverter--it weighs what it weighs...and will cost what it costs.

Obviously, we will do everything we can to reduce weight and cost...but at the end of the day, there's a limit.

Yes it does.  I've unwound several PJ trannies (at least one AS9)...and just for the wild guesstimates there's probably about 10lbs of wire on a 90lb core.

You don't need to.  If you count the number of strands of wire per winding (primary, secondary), I can estimate the maximum wattage the wire can handle before overheating.