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Well, I haven't had success accessing the parameters of the batteries in order to change/increase the charge current limits. Below I show the instructions from the battery manual on how to access the settings by connecting to the Enspire software when connecting my computer to the BMS...

Was able to get ahold of the manual finally. Sure enough, the default charge current limit is .15C. Now I need to figure out to obtain and use this maintenance tool. Another question, given the values on this chart, what absorption and float values do you recommend I set in the charge...

Yes, this is all making sense with the boost voltage thing that others have pointed out. That said, my inverters and charger controllers are working with the batteries, just that the battery puts off boost voltage when we try to send it more than 15amps per battery. We are currently assuming...

All makes sense, thank you for all the help!

Okay, thank you for the detailed answers. For a follow-up to question 2) I understand that the curve may be different then shown on the spec sheet for different currents, etc., and also different if I don't start at 0. Either way, what I'm really try to confirm is that if the battery cells...

I checked the current limit set in the BMS device have below the right rack. It says the current limit is .20C10 ( image below). Next, the current limit shown on the datasheet I included in other comments in this thread showing a normal rating of .2C (first page and also in title of charge...

I will ask the installer, but I don't think he will know the answer, and also I think based on the charge curve shown on the data sheet, it makes sense that the BMS reports 50.0v at the SOC when I read the voltage. FYI, I read this from the BMS device from the ESS page of the menu, not from the...

I don't think the wire sizing/type is the primary culprit of my limited battery charge rate. I have been charging the batteries (generator is running) at their 56v and 124 amps for at least 20 minutes, and none of the wires from the batteries, shunt, or charge controllers are hot. The system...

Hello, I think the 56v is just coincidental, but I will confirm on another day when the installer can remind me how I adjust the maximum charge voltage of the battery. We currently have it set at 56v, but we have had it set at 54v and 58v before as well, and I'm pretty sure the voltage at the...

I have 2022 models, see stickers below:

I did some tests with the 24k Generac running. As you can see, I had an AC load of 10k, the generac was at 15k and charge rate was 56v and 123amps. I lowered AC load to 3665 and charge rate stayed at 56v and 123 amps as generac lowered to 8.5k. This again tells me this isn't a available power...

I hear you and I'm not knowledgeable enough to say differently, but if you look at the charge curve, the voltages reported by the BMS seem to be about right for the SOC. I'm a bit confused. If I have 56v set as the charge voltage limit, and the SOC is currently at 30%, for example, what...

I just got 10 minutes of good sun, but not long enough for me to capitalize on it. I got two screen shots, one at the maximum charge rate I get with 56v set, and two with the AC load increased and showing the charge rate slowing along with the reported voltage dropping. I wasn't able to get a...

I will check this when we have full sun for at least 30 minutes, but I don't think the cables have been getting excessively hot.

I don't think the BMS is the issue because the fact is that the batteries are not full. This delta in voltage is true even when the batteries are fairly low in the morning, call it 30%. Once I get a good amount of sun, this voltages are the norm. For clarification, the battery terminals I'm...

No, it is only about 55% during the measurements I'm taking right now.

Okay, I just did a check with a good amount of sun. Dashboard reporting 56v, charge controller 1 read 56.3v, battery terminals read 55.7v, and BMS reporting 50.0v

I haven't tested the voltage at the charge controllers yet, but I will try in the next few days.

Okay, so if the battery terminals are reading 56v while charging (which is the set maximum charge voltage), and the battery cells are at 50v (as reported by the BMS device), then you are telling me it shouldn't work that way. If it shouldn't work this way, then my guess is that the problem is...

Roger that, I only did a short test with the maximum charge voltage set to 60v, and it only took about 30 seconds to get an alarm on the batteries. I quickly set it back. I just did it as a test. The voltage of the battery cells does slowly increase as they are getting charged (I can check...

Thank you. They are probably easily available in Guatemala city, we live on Lake Atitlan. I will get one ASAP. I'm sure my installer has one, but he has been here multiple times in the last few months, and he can't return for another month.

I may have miscommunicated, but the loads didn't go anywhere. When the PV charger is at 13.5k and the charge rate is at 7k, and the AC load is at 6k, and the loss/components are using about 500w, this all adds up. When the AC load drops down to 1k, for example, the charge rate stays at 7k, but...

I'm a bit confused. If you have a 48v system with a maximum battery charge rate of 58v, but currently set to a limit of 56v, and the battery cells are at a state of charge of say 50v, for example, and you are charging at maximum voltage and amperage, what would you expect the voltage to read at...

I don't see BMS info on the dashboard. Maybe that is because victron doesn't support Huawei batteries, but I'm not sure.

I'm in Guatemala where the installation is located, but I can get one of these on the next trip back to the states in July. I think the arrays are putting out what victron is reporting as the PV Chargers have put out up to 13,500w.

The max current in the DVCC is set to 160amp. I don't think it is enabled, but I'm not sure. I agree that the cables may be undersized, but do you think that is what is causing the charge voltage to reach the set limit (56v right now) and also keep the current at 124amps in total? It has...

I'm pretty sure they are not, in other words probably not big enough.

The cables are probably undersized. Would that limit the amps to 124 or cause the voltage at the terminals to reach the set limit (56v right now)?

Hello, I don't think the DVCC is active because the maximum charge voltage is set to 54, but right now the batteries are charging up to 56, which is what the installer currently has set. I don't recall where he has the 56v limit set. At one point we had 58v set as the limit, that is when we...

Thank you! So, if my charge speed should at least be 70% of STC if the other components are not limiting it and everything is connected optimally, then I should be able to charge up to 10.8k. That helps answer my question of what my maximum charge rate should be. That said, I don't think it...

Hello, thank you the help! That makes sense, so my understanding from your answer is that it is normal for the voltage at the battery terminals to be higher, say 56v, a the battery terminals while charging, versus the voltage of the cells, say 50v, for example. Do you know what charge rate I...

I don't have a wiring diagram. I understand we can't fully see how things are wired, but I don't think we need to in order to answer my two primary questions, which are what charge speed should I get if everything was hooked up optimally, and how is the voltage at the battery terminals supposed...

Hello All, thank you for the help. I attached some more photos showing the 5th charge controller, battery BMS (below the right rack), Cerbo GX and breakers, and the main breaker and generator box. (I have a 24k Guardian Generac propane). Some follow-up questions. I understand that my wire...

I should have thought of that before posting these questions....

The 7,192w limit has happened regardless of what state or charge of the batteries, so whether at bulk or absorption. The voltage difference is not there when the batteries are discharging. The voltage reported by the BMS is lower only when the batteries are being charged close to the 7,192w...