Old Magnum MS2812 and new Lithiums

[Kevin D Pem]

Did you do the install, or have it done? Can you send an electrical diagram?

I am more interested in the 12v high power part,like how the batteries are tied together. Where on the batteries are the charging and power coming off of the pack! And where the shunt (battery monitor is placed in comparison to the circuit! Accompany the diagram with some well lighted pictures! Then I,or someone else here May be able to see what you missed.

I want you to think of the battery pack as a turkey in the oven! Although the oven is at 350° ,and the skin is at 160° in the middle you know it is still cold! So you set the timer and allow the turkey to "soak" up the ovens heat.

Your bank is much the same! For the chemical reaction to fully react, the batteries must bask in the power applied for some time.

Forgive the time delay! I have been up between 2 and 4 with symptoms, and needing a nap everyday!

 

[nsr1357]

first, no apology is necessary. I hope you don't have symptoms of anything serious.
next, i had the install done (and by an ex navy machinist, who while not an electronics expert, is a smart man with lots of mechanical skills......and/but with directions from me as helped by others. also this trailer already had a previous installation of lifeline batteries, but I got direction from battleborn to make sure that proper <new> wires were mostly used....the wire grounding to the chassis was kept as, perhaps were a couple of others, but otherwise it was a new installation. cables all came from a great supplier as suggested to me by others, that being BatteryCables USA, who sells top quality wiring and does a great job of making to spec, shipping on time, etc....I have used them a lot and think, obviously, they are first rate.
next, I do have photos....I have never actually made a diagram, although I had some very basic ones to ensure that the parallel wiring was done correctly...but I don't think they will be much help.
however, the photos are good and i could upload them tomorrow if that would suit you.
I'm very glad and thankful that you are willing to take a look. I hope we have not missed anything...well, maybe I do...as getting to the bottom of this is what I need to do.
as to the "soaking", I am sure it is me...I am still dealing with some trying artifacts of my surgical adventures recently, so I may be missing something...and I read your description...but is the point you are making that to start with, you question whether or not the batteries were properly charged up to begin?
anyway, the pictures were just taken again today, by me.......and I can take more if/as you may want them.
may I upload them without a diagram at this point?

 

[Kevin D Pem]

Well yes! It is always good to cover all bases. Then the batteries were topped off! Good! Over view pictures are important, as well as wire routing. As well lit as you can make them. A rough drawing of the circuit would be good, but pictures will suffice.

I am going through a positive change.( I am well). I know this topic is pressing,but don't overdo please!!! The generator will get you through,so take your time!!!

Oh! Take a picture of this frame ground connection!

 

[nsr1357]

Well yes! It is always good to cover all bases. Then the batteries were topped off! Good! Over view pictures are important, as well as wire routing. As well lit as you can make them. A rough drawing of the circuit would be good, but pictures will suffice.

I am going through a positive change.( I am well). I know this topic is pressing,but don't overdo please!!! The generator will get you through,so take your time!!!

Oh! Take a picture of this frame ground connection!

got it...as well as your advice. already had a ground shot and am including it
c u tomorrow......

 

[nsr1357]

OK, here some are. I have erred a bit on the side of too much rather than not enough and hope that is OK.
i understand it is a bit of a challenge for you to figure all this out from photos, and i wanted to give you every chance.
i reduced them all substantially in size but think they have, still, enough quality for you to see what needs to be seen.
I am ready to take more of anything you see! i have made multiple uploads to send what was allowed (1o images) with each post
thanks so much

 

[nsr1357]

second batch. i am assuming, correctly i hope, that you can zoom in or out on these to see what needs to be seen. again, if anything is not helpful as is, I am glad to take more. I have enough energy for this right now

 

[nsr1357]

one thing I just noticed. while the batteries in parallel are connected with 1/0 cable, my belief is that the array...the one positive and negative that comes off the group to turn the four into one, so to say.......................is supposed to be 4/0 wires and i can see that they are not.
could this be the reason that, as you suggested, the devices are reading "full charge", but in fact, not enough amperage is getting to the batteries from the magnum unit?
what about the busbars to which all this is connected. depending on their size and handling ability, if they were too small, electrically speaking (I don't know that they are), could that be affecting all this, too?
beyond the thrust of the issue at hand, could, also, 1/0 wires (or busbars) too small to handle the total current coming off of the array, be unsafe? none of the cables feel warm, for what that may be worth, not that that is a very scientific method to tell.

 

[nsr1357]

one thing I just noticed. while the batteries in parallel are connected with 1/0 cable, my belief is that the array...the one positive and negative that comes off the group to turn the four into one, so to say.......................is supposed to be 4/0 wires and i can see that they are not.
could this be the reason that, as you suggested, the devices are reading "full charge", but in fact, not enough amperage is getting to the batteries from the magnum unit?
what about the busbars to which all this is connected. depending on their size and handling ability, if they were too small, electrically speaking (I don't know that they are), could that be affecting all this, too?
beyond the thrust of the issue at hand, could, also, 1/0 wires (or busbars) too small to handle the total current coming off of the array, be unsafe? none of the cables feel warm, for what that may be worth, not that that is a very scientific method to tell.

 

[nsr1357]

ps i have turned off the charger for now, just fyi and just in case.

 

[nsr1357]

ps i have turned off the charger for now, just fyi and just in case.

a handful of other folks, have seen these photos or similar ones and pronounced all fine....but in putting together this second system I mentioned to you...the one which is not plumbed into the trailer ecosystem as all these are, 4/0 wires should, I am told, be used to connect the battery array to the victron equipment that is being used for that new system here in the trailer

 

[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.