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Very helpful! Thanks @Adam De Lay I checked the JK BMS app this am and it looks to be reading very similar to SA so I think that's a good sign. Last night through this am I hit 31% SOC and kicked to grid around 6am at that point. Is it safe to assume that since I have it set to 30% on the...

Just a quick update. After getting everything reset, we have both BMS set up with both battery packs (560ah) and was able to get the inverters back in split phase seeing both inverters in SA. I still need to connect the BMS directly so we aren't using inverter or emulated values so that's next...

That makes sense. I had that happen the first night where I had the "maintain battery SOC" setting deactivated and there was constant switching of grid vs battery due to fluctuation of voltage. Very annoying haha. I'll try setting to that lower voltage (48) and keep an eye on it. I think I...

Thanks, I tried but I think the Inverter and SA are duking it out over settings control. Now, the SOC is not reading properly after having a fault yesterday and the BMS app was not liking the voltage levels so tweaking with that. SA was only seeing one inverter until I switched back to "user...

Did you ever hear back about this? I have the same issue right now...I have two LV6548s and the second one has the F90 fault.

I think I had read it on another post where someone was talking about the C rate and having too high of amperage being detrimental to the batteries life. Are there any downsides to having too high of an amperage BMS?

You cut off here. What's the last part? the positive wire goes from.... Are you suggesting to adjust Balance Trigger Voltage to .025V for both packs? I think that makes sense. How would I allow them to sit and balance while fully charged if I don't disable discharge on the BMS?

Thanks. Couple questions: How do you adjust the "PV Power Balance" setting on the inverter? I am not able to adjust it within SA. What do you mean by swap the position of the master inverter? Do you mean switch which inverter is 2P1 and 2P2?

Got it. So this should not have anything to do with switching back and forth between battery and grid.

Thanks I follow what you're saying now.

I usually set to OSO solar only but have done CSO in the past. Shouldn't OSO be the correct option? When I look at the inverters these settings(16 and all of the other voltage ones) look accurate but I do notice that on solar assistant sometimes they look different (E.g it will show utility...

Hi there, I've had ongoing issues with my Lv6548 since I bought it and have had to "patch" the correct serial numbers to make the unit work. MPP suggested this could mean a part was swapped, but I haven't swapped anything since I bought it new. Every time I apply a fix, it works for a few...

Hi all, New here and still learning solar as I go. I installed a 10.2kwh system on the roof and two MPP LV6548 inverters (running split phase) with some car batteries temporarily keeping them running. I plan on ordering 16 3.2V cells to get a 48V battery bank with 280ah. My general...

I'm a little overloaded with reading threads and the nomenclature seems to be a little all over the place. Are there any stickied or reliable threads you'd suggest? If battery stacking refers to running the cells in series (to get 48v from 16cells at 3.2v) then that's the plan. If not, then I'm...

Another fun one.. Two LV6548s in split phase. 2P1 reads accurate voltage (we'll use 54v as an example). In this scenario 2P2 would be reading something like 52.3v. I used a multimeter at the inverters and it was very close to 54V (call it 53.9). Checked individual cells and almost all of them...

So far waiting...I am working with MPP Solar tech support right now...so far nothing but the reseller (Ian from Watts/247) said they have a fix for it. I'll check out your post in the upcoming days. I guess the thing I'm trying to understand is sense it's happening with some units and not all...

Thanks for the details. Is there any downside to running the 200A BMS? I'd heard conflicting opinions on that level amperage being suboptimal for the batteries.

I'm not following. I am in the same situation where I'm locked out...even though I should be on the default password which isn't working. When I edit the name and then try to edit the password it asks to confirm the old password and then put in a new one. When I put the old one in, it says some...

I think this might be the right thread to bring this up. . I have a similar situation where I don't fully understand the "overload bypass" and "overload restart" options on my split phase lv6548 setup. My use case: I have "back to battery" setting at 53v and "back to grid" set to 50v. As...

I included the settings below and the power mgmt. settings based on SOC (as a failsafe) to switch to SUB and Utility at certain % (see screenshot #2). I just noticed that the settings had reverted "back to battery voltage" to 0v instead of the 53v I had set (screenshot 3). I think this is...

Had an 04 fault today (low battery voltage) on the one inverter that has the lower voltage reading. I think my battery setting's are being based on the lower voltage which is causing issues. Any idea?

Here's the thread where I was confused on running the continuous amperage: https://diysolarforum.com/threads/bms-for-280ah-16s-48v-lifepo4-connected-to-growatt-5000es.42635/post-538745 Seems like most folks either go with the Dalys, Chargery, or JBD. Not trying to spend a fortune but get...

I've been watching YouTube videos and searching through this forum, so if I missed something please direct me to a source of truth. I have Solar Assistant (SA) set with my 2X LV6548 inverters (Split Phase), 200a JK BMS- no additional communications to the inverter, and 16cells (EveLF280K LiFePO4...

This is very helpful. Thank you!

I think this is a good starting point for me to learn through this process and see if I can get things balanced. Appreciate the feedback and I'll post here again if I still can't resolve balancing.

If I'm in the wrong subforum, please redirect me... I have two 16cell LifePO4 280ah battery packs connected with 2 200a JK BMS' (b2a20s20p). I've noticed that the voltage between the two is not that close. I have identical settings (at least the ones I could set) in the JK app. There's also...

I went on Seplos' site and inquired about pricing for their 200a BMS but it was a little confusing. Are they the manufacturer for the chips that go in all the aforementioned BMS' or are they specific to one of the ones I mentioned above? The Daly seems like a pretty good deal and I get amazon...

I think you're right that the automation is causing the issues...likely a bug that changes "back to battery" to 0volts, meaning it stays in grid regardless of being able to support the load without. Hoping SA has seen this and will apply a fix. Still confused on why grid charging happens in...

Thanks for the advice. I'll try and set the start balancing to ~3.4. Interesting. I had tried turning "charge" off on the higher voltage pack in order for the lower voltage pack to catch up but you're recommending turn discharge off. Mind giving me some context on that recommendation? I did...

It's showing the correct settings I set for inverter 1. Inverter 2 (even though it has a separate cable to communicate to the orange pi) shows the wonky settings.

Attached images of current setup. Positive and negative run straight to inverters. Let me know if any other details are needed. Reading these comments, seems like there's some different opinions on how to go about this...what's my safest approach here? I had one pack running for a few days...

I think I follow. I guess that's possible for the switch from batteries to grid, but not sure it would explain why the batteries are charging from grid when they shouldn't be.

I have grid charging to the lowest setting of 2A but it seems to ignore that 🤔

I have two LV6548's running split and just got the F90 error on one of them (we'll call it the 2P2 Inverter). I've been having issues since I set them up and the LCD constantly turns off on the 2P2 one (that just got the F90 error). Now it gets the error and turns off within 10 seconds where...

I'll keep messing around. Maybe a setting isn't sticking or reverting somehow. Can you explain to me those two overload settings? Just want to ensure I'm understanding what they are supposed to do.

Thanks for the suggestion. Few questions: How did you arrive on 6500W and 85%? Is your suggestion based on the 280ah or the potential 560ah? Based on that suggestion, does a single 200a BMS make sense, or would that come with its own set up problems? What sort of setup is recommended?