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curious, so I pulled the PowerJack label back on the outside of the box>>>>the relabeled box had a upower sticker underneath it. but the inverter says PowerJack on the sticker label on top of it.
likely the same inverter as upower maybe??? who knows or maybe just the same size box out of the same PowerJack factory. the outside box has a January 8th, 2022 date on it. likely the box date and probably not a manufacture date... but again who knows???
the included manual has specifications for 12 volt inverters but not for 24-volt inverters. good going guys!!!
if you register it on the web site; it says you get the better 15 month warranty ....yea ha!!!!
anyways still a bargain for low power things at 272 dollars delivered. maybe it will run the 220 volt built-in oven the wife has been yelling about....!!!!! oh , oh --- I mean gently reminding me on a regular basis....ha hah hah
PowerJack .... they also improved the transformer bolt-down on the bottom of the inverter. I will try to get a picture of that later. but the case is a bit sharp, have to flip it over to get a good picture of the improved transformer bolt down method. it is downstairs right now.
up the stairs.........down the stairs... all the more reason to have a ranch style house all in one level and not a ancient 2 story house. but I digress. just go down stairs...🤔
but have you put a choke on the ac output???
That label about a Power Choke is disturbing . The marking of a ASL2 on the box is disturbing . My 2 year old 8kw PJ has a ASL4 transformer . Upower 8kw has a ASL2 transformer ? PJ in China show me a new mini tiny tiny main board that only allow 4 FETs and 2 capacitors max with printed trace that is so short there will be no crosstalk and never blow the FETS . Is your inverter inside has that mini tiny tiny mainboard ? Maybe that why a Power choke is needed ?
have not opened it up yet...
seems they are looking for a reason to void the included so-called warranty though. but wonder if the choke would be useful or not??? i should open it up. 5 nuts and bolts on each side plus 4 on top to remove the top of it...
is it their way to make it cheaper?
if they had a truly functional way to make it work,,, but just trying to see what is working for others. seems like they have been promoting the choke idea for a while now....
have to go bear the winters cold and wind to get tools.
if you watch one of sean's later videos he indicated putting extra wraps on the inside output seemed to fix the new 12k they are working on. so getting the windings correct may be an issue also. the external ac choke was previously ridiculed; but yet they now have placed a large prominent sticker saying to use a choke on the ac side or no warranty....
go figure....did not say that when they were selling them....
only works if you buy some extra parts????
they do sell chokes through eBay via the powerjack vendors...but will they really work or are they just selling more bandaids without any glue???
they do sell chokes through eBay via the powerjack vendors...but will they really work or are they just selling more bandaids without any glue???
The GS 12kw do not need a choke on the output AC to get 13000 watts on youtube . The rev 11.3 control board may have a design flaw or the mainboard is flaw so AC power choke is needed . Pj has good market people and will sell an expensive choke to make more money and reason to not give free repair
I think he was putting more winds on the choke on the inside to get the temp to stabilize right off the transformer so that choke extra windings would be on the dc side of the gs -12k inverter he was talking about the developments. but would have to listen to his video again.
but Sean (GS) he needs a bigger battery bank to run the 12k inverter for any real time testing.
his Sean's GS video did not show any real details of the physical change to their design, just talk...
maybe they will show the details,,,????
but like you say they may just be selling more useless bandaid type stuff with no real improvements to the powerjack inverters just to sell stuff. the included manual and warning sticker so prominently applied gave no specifics of what one would need to make the PowerJack AMG version 8k psw sp lf inverter actually start the larger loads>>>> go figure
still waiting for a bigger inverter.... instead of the small ones...
thanks for all replies....
his Sean's GS video did not show any real details of the physical change to their design, just talk.
The youtube say the new GS12kw case is too small for air circulation . The choke needed 3 windings not 2 from the factory . It takes a lot of battery and solar to run a GS12kw inverter that I do not have . I now think I only can run a GS12kw at 8000 watts for maybe 6 hours and need to recharge the battery 10 hours . A bigger problem is the good FETs is out of stock and a new prototype need to be tested with maybe different FETs and cause more delay before pre-order . I will pre-order when it is working with FETs that do not blow up . I think the old transformer will work with more windings . The new transformer in this prototype is too expensive .
The explanation for the external inductor is a bit suss. The transformer itself would normally protect the FETs from hash generated by the load. Maybe they are using the external inductor as a current limiter more than hash removal. Similar idea to a soft starter you see being sold for pumps etc except in this instance it's there to stop the inverter blowing itself up due to poor control systems / algos.
i know on mike holt electric video, he talks about ac voltage spikes either positive or negative when large loads are started or stopped... maybe that is the concern is the kick back voltage spike when starting or stopping the large loads on the ac side....????
pure speculation on why they are prominantly pasting the warning sticker on the side of the PowerJack 24-volt LF SP PSW AMG version inverter....use a ac choke or your terms of warranty are no good....PowerJack prominant label....
i won't use it for motor starting at this time but may utilize it for the oven and cooktop.
i just noticed this thread for the same inverter.
i have some 24volt systems i have been running on several different inverters.
i am setting up a bigger LiFePO4 battery for longer run times.
the inverter is still the weakest link in my systems.
i know on mike holt electric video, he talks about ac voltage spikes either positive or negative when large loads are started or stopped... maybe that is the concern is the kick back voltage spike when starting or stopping the large loads on the ac side....????
YES my rev 10.3 control board will blow up the FETs by inductive voltage spike . My rev 11.1 control board and your rev 11.3 control board will not start an inductive load and give the red light alarm so the FETs will never see the spike and has never blow up my FETs so far . My 8kw PJ will start a 5hp air compressor with the rev 10.3 control board BUT if the compreesor motror do not start in 6 seconds then the AC side FETs will blow up every times but the LF driver and rev 10.3 control board is still good . I never try AC output power choke to see if that help with the rev 10.3 control board . as I have no problem with the rev 11.1 control board but will not start any inductive load for unknown reason .
if you watch one of sean's later videos he indicated putting extra wraps on the inside output seemed to fix the new 12k they are working on. so getting the windings correct may be an issue also
It helps to reduce no-load idle current...that's really the only place we see improvement.
his Sean's GS video did not show any real details of the physical change to their design, just talk...
No significant changes are necessary, just moving things around and correcting the manufacturing errors.
I think he was putting more winds on the choke on the inside to get the temp to stabilize right off the transformer so that choke extra windings would be on the dc side of the gs -12k inverter he was talking about the developments. but would have to listen to his video again.
Pretty sure the extra heat was caused by either poor crimps and/or a possibly shorted winding.
curious, so I pulled the PowerJack label back on the outside of the box>>>>the relabeled box had a upower sticker underneath it. but the inverter says PowerJack on the sticker label on top of it.
Power Jack makes U-Power branded inverters. The "U-Power" company buys inverters from PJ, relabels them with double the PJ ratings, and ships them out. No internal changes.
this is a PowerJack 8000 watt PSW SP LF AMG version inverter not a u-power inverter, 👍 the u-power you tell about would have greater claims....wow!!!! 🤣
likely enough PowerJack over-rating without doing it again,,,,???
it was just curious that they relabeled the box on the very outside with a big white PowerJack label. maybe the box factory is having a shortage too>>>sent me a recycled box???
the center bolt and insulator that hold the transformer into the case seems to be an improved version....i will snag a picture of that later...
found my little socket set so may take the lid off later when all the people are sleeping....😎 the little one would have a hay day with the sockets...