Delta9

it does indeed "seem" like a S.S can AC couple on its Aux port (gen power in port)
 
 
However its quite hard to understand what Keith is trying to say - its a muddled convoluted conversation going on in this video. If you listen hard and maybe play it a few times, it seems like he is trying to say a grid tied inverter can be connected to a sunsynk inverter that has batteries attached to it via the AUX port (gen in port) of that sunsynk inverter with batteries attached to it and that same inverter with batteries attached to it can supply power to the circuits in the DB board at the same time as the other grid tied inverter because of the CT from the Sunsnyk that has the batteries attached to it.
I wish Sunsynk would consider upping thier game and doing some professional video's - get someone who can explain it all clearly to present the concepts 

You get VFDs that run off 3 phase.

Please clarify what you mean. Are you saying that you can power something through the aux port from your solar panels ?
The information I posted was taken from a You Tube video made by Keith. He clearly stated that the Aux port does not get power form panels. Maybe he meant something else - his videos have a ....certain rambling style to them.

This is true. I installed a Victron 5Kva Quattro in 2009 and it has never once missed a beat up to and including today in 2022. Not bad going.
The Sunsynk 3 Ph inverters seem to be a nice solution but what will the durability turn out to be? No one knows at this point. However going by this forum which has the most Sunsynk threads by far I have not seen a thread with a Sunsynk down title to the thread. They seem to be chugging along OK at this point. I suppose we could get bitten by  capacitors that dry out at year 7 or something similar. At least with Victron you know they are using quality parts. Sunsynk? lets hope so.

Which is quite a nice way of doing it really.
Better if the gen set auto starts based on a set of conditions but if it doesn't and one has to start it manually how nice is it for the inverter to disconnect the genset and restore supply via grid without any intervention from the owner/operator. This further infers that you dont have to turn everything off, stop the generator, use a change over switch to pick which incoming supply to use (grid in this case once it has has returned and is able to supply power to the inverter) and then turn everything back on. Been there, done that. So last century !
These Sunsynk inverters keep getting nicer and nicer the more I read about them. I am very happy with my Victron system but these newer Hybrids have functionality that a quattro just does not have - without adding lots of bells and whistles at significant cost.

Which is quite a nice way of doing it really.
Better if the gen set auto starts based on a set of conditions but if it doesn't and one has to start it manually how nice is it for the inverter to disconnect the genset and restore supply via grid without any intervention from the owner/operator. This further infers that you dont have to turn everything off, stop the generator, use a change over switch to pick which incoming supply to use (grid in this case once it has has returned and is able to supply power to the inverter) and then turn everything back on. Been there, done that. So last century !
These Sunsynk inverters keep getting nicer and nicer the more I read about them. I am very happy with my Victron system but these newer Hybrids have functionality that a quattro just does not have - without adding lots of bells and whistles at significant cost.

Like many others I am finding the setup of the Sunsynk a bit confusing.
 
This post by system32 explains his settings for his Sunsynk 8K on the Battery Setup and System Mode screens and is easy to follow;
 
 

Which is quite a nice way of doing it really.
Better if the gen set auto starts based on a set of conditions but if it doesn't and one has to start it manually how nice is it for the inverter to disconnect the genset and restore supply via grid without any intervention from the owner/operator. This further infers that you dont have to turn everything off, stop the generator, use a change over switch to pick which incoming supply to use (grid in this case once it has has returned and is able to supply power to the inverter) and then turn everything back on. Been there, done that. So last century !
These Sunsynk inverters keep getting nicer and nicer the more I read about them. I am very happy with my Victron system but these newer Hybrids have functionality that a quattro just does not have - without adding lots of bells and whistles at significant cost.

Hi Leshen,
What I was referring to was that in reading many posts about the Hubble batteries some folks seem to get rapid response and thier issue resolved fast and others post that they cant even get a response from Hubble.
The other thing to remember is that people who are running without issue will not take the time to post to say how well its all going. However people who have an issue are very very quick to jump onto forums/social media etc to bitch and moan about the problem. So there is that.
Having said that, there seem to be lots of problems with Hubble cells getting out of balance. We dont know what percentage of cells this is compared to cells out there working though. They may have 50,000 cells out there working great and only 15 of them are having issues. Its hard to know what to think. 
What I can say is when I put my hard earned money down on the table I want backup and support - pronto. Thats what I am paying for after all. So lets give Hubble the benefit of the doubt and say that less then 1% of cells are having issues - fair enough. But how do they account for not being FAST on the support side?
I speak from experience to some degree. I had a business installing systems for a wide variety of clients from banks and huge mining houses to farmers. If someone called me on Saturday night to say they were down, I was on the road Sunday morning heading to the site. And that site was often over 1000Klms away (each way). Now I know not many see it this way but the customer has choices - many many choices to choose from and if they make the decision to pick YOUR brand then that is GOLD. In my view I took that fact to heart and my company gave our clients everything we could offer and all the resources we had to keep them satisfied. We did very well. Our business grew to be one of the biggest in our field in the country I am in and it was ALL word of mouth - satisfied clients recommending us to thier friends/family/business acquaintances.  That era is over now and tech has moved on so tht business has died a natural death but in my view it SHOULD BE (but sadly not something you come across that often in these times) how small entrepreneurs who run small business think and act. If they do this they stand out far above the others because not many seem to get this. Even if the odd one gets it, they dont really put too much effort to keep this sort of service going. I was at it for 15 years - it was gruelling and tiring and the fun went out of it after the first year but we kept it up and we grew and grew - simply because we had a good product with excellent support and back up. Having a good product alone is not enough. Having good support on a dodgy product does not cut it either. You need both. Get this right and grow rich.
Bottom line - I looked long and hard at Hubble but in the end decided to give it a miss. I felt uncomfortable with that chemistry unless I could install batteries in an out building/ garage etc. I see someone else here on the forum also stated something else very important - its very hard on folks who are not in SA to have confidence in this product with so many stories of issues with the cells. The cost to export from RSA, import to another country and then have to return the cells to RSA for repair is massive - so there is that to figure into all this. Much easier for you guys in RSA to deal with faulty cells/batteries then for us souls North of you. All in all I would feel much safer putting my cash into Freedomwon or Blue Nova. A hefty premium yes, but I've not heard of any horror stories with Freedomwon.
My 2c (and i have no dog in this fight - just the way I see it)

Strange how some people get the Golden support treatment and yet others report that Hubble wont even respond to them.
I wonder what is going on here ?
I was going to buy some Hubble Batteries but the chemistry turned me off them. I dont feel comfortable putting anything other then LiFePO4 or LTO inside the house. Glad I didn't go this way reading some of the trouble people are having.

Strange how some people get the Golden support treatment and yet others report that Hubble wont even respond to them.
I wonder what is going on here ?
I was going to buy some Hubble Batteries but the chemistry turned me off them. I dont feel comfortable putting anything other then LiFePO4 or LTO inside the house. Glad I didn't go this way reading some of the trouble people are having.

Not sure if any of you here have seen this program or not? 
https://www.suncalc.org/#/-29.8438,23.2046,3/2020.12.04/10:52/1/1
Its very very useful to see where the sun is on your property for a given day/month of the year. 
 

This video talks about this.
 

This video talks about this.
 

I am doing a deep dive into the whole solar thing from panels to inverter to batteries to control of it all.
Looking at posts here on this forum about Victron led me to researching the 1:1 rule. This implies a big kWh battery and I think lithium is the only way to go these days (on my second set of AGM's in the past 10 years - but that setup was never solar - only using grid to charge batteries and using inverter as a UPS for when the grid goes down)
So I need a big battery as per the 1:1 rule for my plans as I want to run a water pump. Looks like I can build a battery cheaper then I can buy one. I have watched many youtube videos on systems using Battrium BMS, so it seems feasible to build out a battery and use Battrium as the BMS.
But not so sure second life is the way to go. So lots more research to do , questions to ask. It is enjoyable though. Making power from the sun is fascinating to me and saying goodbye to the grid will be a great thing.

Not sure if I should be worried here or not 😉

You get it 🙂
All your base are belong to us. 
Lets see if you get that one 😉
 

I also remember when solar panels were $900 ea! and batteries were cheap.....but then again racing was dangerous and sex was safe.. back then.
Now racing is a safe past time, sex is dangerous, panels are cheap and we need to sell a kidney to have batteries. Ahhh, progress..... you gotta love it.

Indeed. Sad as it is, I know this from the time it actually happened. Just gave away my age 🙂