Old Magnum MS2812 and new Lithiums

[Kevin D Pem]

Please complete these connections

 

[nsr1357]

hello Kevin,
forgive what probably should be obvious to you, but when you say "complete", you mean you want a diagram of what goes to "where", right?

 

[newmarokie]

nsr,
I have read the entire post and there is alot of good info. I run an MS2812 and 3 206Ah SOK batteries. It was Rob that said that settings could vary and not be wrong. With that said here is how my inverter settings go.
CUSTOM
Absorb 14.6
Float 13.8
Equalize 14.5
final stage silent
rebulk 12.8
LBCO 10.8
float time 30 minutes per 100Ah
I know there will be some screaming and gnashing of teeth on a couple of those settings, but it has been working well since January. I derived those numbers off of recommendations on this forum and the SOK forums.
There was a post on the SOK forums from Min Wang. He is an owner or engineer for SOK. He answers most of the tech questions presented. He had a post on there at one time that batteries would go to 13.0 to 13,1 and stay there for a good time while in use. That has been my experience as well. There is a youtube video from a gentleman that full time with a MS2812 and I believe battle born batteries. Very informative. You might go try and find it.

 

[newmarokie]

Oh, and equalize time to the min. setting 0.1

 

[nsr1357]

nsr,
I have read the entire post and there is alot of good info. I run an MS2812 and 3 206Ah SOK batteries. It was Rob that said that settings could vary and not be wrong. With that said here is how my inverter settings go.
CUSTOM
Absorb 14.6
Float 13.8
Equalize 14.5
final stage silent
rebulk 12.8
LBCO 10.8
float time 30 minutes per 100Ah
I know there will be some screaming and gnashing of teeth on a couple of those settings, but it has been working well since January. I derived those numbers off of recommendations on this forum and the SOK forums.
There was a post on the SOK forums from Min Wang. He is an owner or engineer for SOK. He answers most of the tech questions presented. He had a post on there at one time that batteries would go to 13.0 to 13,1 and stay there for a good time while in use. That has been my experience as well. There is a youtube video from a gentleman that full time with a MS2812 and I believe battle born batteries. Very informative. You might go try and find it.

first, thank you so much. next, I did have "equalized" to, essentially "not"...meaning set as you indicate.
as to the rest, I admit to being a bit overwhelmed right now...I have recently had a very bad bout of lung cancer surgery and my life is upside down right now (although the short version is that I may well have beaten it.....won't know that for a couple of years)..............so, as I put it these days, "molehills for others are mountains for me" right now.
that said, I love this forum and the people in it...and very grateful as this whole "instant" (a legal term for the matter at hand) mess that my posts and yours contemplate have prevented me from, in so many words, having an adequate battery backup when power goes off, which it does in my area, more than it should.
THAT said, between here and yanking on the sleeves of some people also much smarter than I, are, I am sure, going to help me pull this through and sooner rather than later.
in this process I became quite familiar with the settings in magnum for these batteries, and while I would agree that a few of yours might raise a few eyebrows, they would seem to do the trick, nevertheless.
as to "SOK", that is a great find and I thank you for everything.

 

[nsr1357]

ps i am believing more and more, prompted initially by a post here (apologies as I do not recall who said, but I think is was Kevin) that despite the readings on both magnum's panel and the victron shunt, saying that the batteries get fully charged, I am really doubting that this is actually true. if, indeed, that is the case, and the symptoms and my setup would lean in that direction, then that obviously begs the question about "why".
i am going to stay the course here until it is done, although it may take me some days to respond to do all that i need to, depending on what local help I can dig up and when.

 

[Kevin D Pem]

hello Kevin,
forgive what probably should be obvious to you, but when you say "complete", you mean you want a diagram of what goes to "where", right?

Yes! The pictures aren't obvious!

If you want, looking at the drawing from bottom right=1 and top right=4 . Tell me what batteries are hooked up to the buss bars. Include the polarity!

 

[Kevin D Pem]

Yes! The pictures aren't obvious!

If you want, looking at the drawing from bottom right=1 and top right=4 . Tell me what batteries are hooked up to the buss bars. Include the polarity!

I would also like to know the ground to frame information.

 

[nsr1357]

I would also like to know the ground to frame information.

certainly. i did include, I think, two photos of the ground but in the process of getting this done, I will make sure that we include it.
i ask your forgiveness if this takes me some days to get together, but please do not infer that this indicates some sudden lack of interest. these components are all in a smallish compartment, it may mean unclipping this and that to be sure the diagram is helpful and that will mean my getting some help on this end, which may not come until this weekend.
but kindly stand by....and thanks again.
PS did it mean anything (in any context) that where 1/0 cables are used to go from the array to the rest of the system, rather than what I think should have been there as 4/0 of the battery bank?

 

[Richpatty]

You can’t go wrong with 4/0…at least with the main ground and positive leads coming off the batteries, but 3/0 or better wouldn’t hurt even between the batteries. No one ever regretted too much cable capacity…