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That look like a copper plate that you will cut into strip . I buy a 10 foot i/2 inch copper water pipe from home depot and flatten with a hammer and bend and drill holes for all my busbar and a lot cheaper .
I started down the route of smashing the copper pipe, but the LiFePO4 cell arrived with nickel plated busbars. the last batch i ordered double busbars...
but the thick nickel-plaled copper 4 inch x 12 inch x 3/8 inch will be for a 48-volt 1160Ah battery build... at least that is where i think i am headed toward for a larger capacity battery at 48-volts.... I am thinking of connecting 2 in series to get the 48-volts or may de-assemble and just do a 4P16S with a different BMS....
I have one PowerJack LF inverter that I do not use 24/7 but it is still hooked up to the LiFePO4 24/7 at the moment.... I turned the PowerJack switch to the off position >>> the center location..... (I never use the "power sav on" position)so I would think it would not have any battery drain in the off position, that was where I wondered if when I turned the PowerJack switch back to the "On position labeled as power sav off" if there would be any problems???
thanks for the replies....😎
sun is out and now the grass is growing like gang busters.....
I turned the PowerJack switch to the off position >>> the center location..... (I never use the "power sav on" position)so I would think it would not have any battery drain in the off position, that was where I wondered if when I turned the PowerJack switch back to the "On position labeled as power sav off" if there would be any problems?
I turn my inverter to the off (center) when not using at night . There is a battery drain in either the off or power sav position as the FETs is always ON and will drain your battery and that is a problem . You can see the green light at night thru the fan grill . I connect a e-bike 56 volt charger (20 dollar on ebay) to keep the battery above 44 volts or the battery will be damage from the FETs being on . The only way to shut off the inverter is to disconnect the POS red 4/0 cable but then you need to pre-charge before connecting the 4/0 red cable again or you get the sound of a shotgun blast .
12 hours ago, dickson said:I turn my inverter to the off (center) when not using at night . There is a battery drain in either the off or power sav position as the FETs is always ON and will drain your battery and that is a problem . You can see the green light at night thru the fan grill . I connect a e-bike 56 volt charger (20 dollar on ebay) to keep the battery above 44 volts or the battery will be damage from the FETs being on . The only way to shut off the inverter is to disconnect the POS red 4/0 cable but then you need to pre-charge before connecting the 4/0 red cable again or you get the sound of a shotgun blast .
ok thanks for that answer....
i will monitor that battery a little closer....wonder how much is being used when in the off center position by the fets etc??
thanks again for your response!👍
the PowerJack 30000 watt PSW SP LF inverter:
i will likely never do a full load test on it... but if it puts out 9000 watts continuously... that would be more than enough I think....
Sean can blow them up on his test bench.... i would prefer to avoid that melt down....
i will add more fans to cool the separate transformer box and more fans to cool the separate control box which houses the control boards etc....
and some other tinkering....
i have not seen anywhere or anyone with actual test results or video of what it could do???? the 30000 watt PowerJack LF PSW SP inverter....
i would tend to think it would work a lot better than the 15000 watt or 20000 watt versions...
Sean hyped them up in the past,,,but maybe he had no real useage data????? he claimed he had viewed things from PowerJack that the 15000 and 20000 watt inverters would do that amount continuously,,,, but maybe he was only telling a story....as he never showed any video of what they could do in real life use...he also said he was disappointed they never sent him any to test out....
as he has only a small battery capacity and can not run the big inverters continuously 24/7 under load...maybe in the future more real data will be found....
seems Sean was always pushing the idea of needing more cooling of the transformer and of the mosfets...with more fans (jet engine fan approach to cooling)
so fans used in a climate control electrical room would seem to be a logical upgrade to keep everything cooler...
there is so much to learn....i watched a YouTube video about "How Electricity Actually Works" today it was very interesting...from "Veritasium"
PowerJack 30000 watt LF PSW SP inverter:
the standby load is due to keeping the mosfets and capacitors charged, and the small led sensor lights illuminated ... correct???
the LED sensor lights were done by the board designer to track if their circuit is functioning correctly... seems like it was near 60 watts if I remember correctly....but that would be the standby load when the inverter is in the on position(aka power sav off)....???
In the center "off" position the standby load would be less correct????
I remember seeing Sean breaking out the led sensor lights in an attempt to reduce that small led light electrical draw in one of his YouTube videos....I would never do that...but I am still interested in the amount of the electric consumption by standby load in the off position....by the PowerJack LF PSW SP inverters....
likely covered someplace but I have never seen it yet...
thanks for all your replies!!!! 😎
need more fence so the sheep can do more yard maintenance for me.... so off to work I go I go>>>>🤔🤔😁
1 hour ago, pilgrimvalley said:wonder how much is being used when in the off center position by the fets etc??
The FETs themselves are off when the power switch is in the center position.
The little LEDs across the MOS boards do pull closer to 15mA all the time @ 48v however. You can measure the off-state current, and 95% of that is the LEDs on the MOS boards.
1 hour ago, pilgrimvalley said:i would tend to think it would work a lot better than the 15000 watt or 20000 watt versions...
Sean hyped them up in the past,,,but maybe he had no real useage data????? he claimed he had viewed things from PowerJack that the 15000 and 20000 watt inverters would do that amount continuously,,,, but maybe he was only telling a story....as he never showed any video of what they could do in real life use...he also said he was disappointed they never sent him any to test out....
All Sean had was what PJ had said, which apparently at that point was that the "new generation" of PJ inverters would actually do their rated power. But seeing as he's never had one of said inverters come across his bench, there is no way to verify said claims.
the standby load is due to keeping the mosfets and capacitors charged, and the small led sensor lights illuminated ... correct???
The "off state load" is just to keep the LEDs illuminated, and a very small draw from voltage dividers on the control board.
Cap leakage current is going to be extremely low (as they're electrolytic caps, not polymer electrolytic caps)...not even worth worrying about.
FETs aren't responsible for any of the off-state power usage.
the LED sensor lights were done by the board designer to track if their circuit is functioning correctly... seems like it was near 60 watts if I remember correctly....but that would be the standby load when the inverter is in the on position(aka power sav off)....???
You'd better believe it. "On state idle load" on a PJ can easily be 60-120W or higher. Off-state power usage should be <1W.
I remember seeing Sean breaking out the led sensor lights in an attempt to reduce that small led light electrical draw in one of his YouTube videos....I would never do that...but I am still interested in the amount of the electric consumption by standby load in the off position....by the PowerJack LF PSW SP inverters....
You can measure it yourself with a DMM (digital multimeter). Remember, there are no set characteristics of a PJ inverter--so it's impossible to know what yours will or won't do. "Identical units" may very well have significant behavioral differences due to manufacturing experiments.
All Sean had was what PJ had said, which apparently at that point was that the "new generation" of PJ inverters would actually do their rated power. But seeing as he's never had one of said inverters come across his bench, there is no way to verify said claims.
in one or 2 of his (Sean's) video he does show the 20000 watt PowerJack inverter with the large transformer... they are on youtube now still.
he (Sean) never load tested them but indicated he would... never seeen a load test of them... the one video said he was waiting fpor the part from PowerJAck that was maybe a year old video or more...
so yes he has had them in two of his videos on YouTube.... just never load tested them... that i have ever seen...
the 30000 watt Powerjack LF PSW SP inverter I have never seen any YouTube videos on it at this time...
There's a difference between the old "15k / 20k" inverters and the new multi-box designs.
here is another one where he (Sean) is talking about the 20000 watt one also with the large toroidal transformer...
he (Sean) likely has a video he never posted someplace,,,
https://www.youtube.com/watch?v=h0sKuHssaTo
this video above was January 2020, i received the 1st 20000 watt inverter which they replaced and Sean received the damaged transformer and inverter in early 2020... they sent me a replacement 20000 watt one....
I saw one YouTube video where Sean was trying to sell the damaged transformer...from the 1st 20000 watt inverter I sent to him in January or February 2020 with the huge colossal size toroidal core...he said it had a short due to the shipping damage in his YouTube video...the original 1st one was in the black case...
they (PowerJack) later went to the Stainless steel case....
time to go outside. and feed the critters etc...
Have a great day! 😎
There's a difference between the old "15k / 20k" inverters and the new multi-box designs.
i am sure there is a difference...i have a 30000 watt one coming soon....
189 pound PowerJack 30000 watt 2 stainless steel cases model LF PSW SP inverter (from 2021 year i believe) without the UPS or charge function is what I ordered through eBay via the slow boat ride from China method....
have to see more inside photo details when it arrives....maybe in about 4 more weeks or so......
as they (PowerJack) sold this model in past years possibly to someone in the USA....perhaps more information will be found....i will post some pictures when it gets here....
it is not an AMG version....
here is another one where he (Sean) is talking about the 20000 watt one also with the large toroidal transformer...
A third video of the PJ 20 kw where Sean say he will use the ASL 9.0 core for the GS 12kw . Still no load test of the 20 kw PJ . Your 30000 watt originally use a massive ASL 11.0 core not AMG .
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i also sent back a PowerJack 15000 watt 48-volt LF PSW SP inverter with the large toroidal transformer because it had the stand-off sheared off of the control board mounted to the heat sink.....
this was while they were still sending them to Sean....should have been a super easy repair but they chose to pay extra shipping of the whole unit....maybe the UPS insurance pays them for it>>>I do not know...
I do know it is a major pain in the rear to box them back up and tape them all shut and haul out to a UPS shipping office...
they did not want to replace the part so i just got a refund...but in all reality it was a very small shipping damage that would have been more economical to send me the part... it was within the 1st 14 days....
I tend to think there was a communication gap// a language gap on that one...with the eBay vender...
thanks for the replies...
starting to mist.... maybe more rain...