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If I understood your question see page 40 of the manual to adjust the AC charging current. https://eg4electronics.com/backend/wp-content/uploads/2022/07/EG4_6.5_Manual.pdf

The cable is straight through to avoid any pin out issues. Have you had any success getting SA to speak with one battery? Once you do, pushing that data over MQTT to HA allows for some beautiful dashboards. Check out my mobile view that I’ve been polishing up since my initial post.

I like the 70% of load estimate for ideal generator load. What I was trying to get at is, over simplified for illustration; a large generator for a small load isn’t needed, efficient or cost effective. If the equipment you’re powering from the generator can’t even consume 30% of its output...

Okay so if you have more wattage than what the inverter can use for example a 7s4p configuration, that is fine so long as the amps and volts are under the maximum for the inverter?? Again thank you so much for your responses, I feel like I knew this stuff in theory, but the practicality of...

I'm a little new, but volts multiplied by amps equals watts, watts is actual power. So my math says your total watt-hours are 10,240 between all four of your batteries. You have both wires and inverter efficiency that takes some power, plus the inverter itself uses power for operation. So...

Looks nice, thank you for sharing.

For grounding you should interconnect all the panel frames and then run a ground to a ground rod that is barrier at least 6 feet in the ground. This will discharge static and help protect from lightning. For fuses in your array you only need them if your total short circuit curren exceeds your...

I've been using this one for two months, if you want USB C, just use a USB A to USB C cable, however you'll only get about 5v, (standard USB voltage). https://www.amazon.com/gp/product/B076ZLHLD3/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I never understood the idea of tariffs on products that do not have a domestic supply. Increasing the tariffs raises the prices we have to pay for these batteries so that maybe,... an American company might build them instead. I think right now it's tough to know which way the wind is...

So what does this mean, are you saying the recommended max charge voltage has now been increased but is not document?

I can confirm this is the behavior of the Sol-Ark to not back feed when no grid is connected, and as others have stated every grid-connected inverter in the US behaves this way, unless you're in Hawaii where the solar helps with brownouts. If you are able to disconnect/reconnect the grid to...

I haven't seen anyone mention these devices, I currently have one at a few properties. You can run 2 IP cameras with it, it does cloud backups, DNS, VPN, NAS features and a whole lot more, best of all it runs a VM's which is where I have HA running...

Looks like EG4 just released new firmware for the communications hub and it seems to be related to my question.

There is a Mac version, but I'm not aware of an iOS version. The MAC/Windows app is currently so hacktastic I'd be surprised if they could get it into the iOS app store unless the developers suddenly wrote more intuitive and better-designed applications.

It was actually cheaper than the EG4 18k. Which IMO is a more mature, stable and certainly unarguably better supported product.

Nice diagram! One thing that stood out to me is that it appears you're going to use your trailer frame as the negative path for your DC system. Typically you would route all your negative wires back to your negative bus bar and not back through the frame of your trailer. Is this your intent...

Regarding the yellow battery shading, from my understanding that typically means that the currenltly flowing amps are near the programmed limit. Is it possible that since they're in a Master/Slave combination, the 100 amps you have set is actually the aggregate? That would kinda make sense...

It's possible you could have an MPPT failure, it's also possible that you have a physical fault somewhere that has interrupted the current from your panels to your MPPT, or you've encountered some sort of software glitch. However, your only method of confirmation will be to physically check all...

On the 27th, the batteries reached 56.6 volts at 20:31, and charging completely stopped at 21:01, by 22:04 they trickled back down to to 53.4

Hi @Keith Moreau My 12 Lifepo4 EG4 batteries are connected to an EG4 communications hub. The hub then connects to the sol ark. The yellow ethernet cable is connected on the other end to the communications hub. The beige splitter is used, so that solar assistant can talk to the inverter...

Do you have a picture of the way you have your batteries installed?

I don't know if something like this exists for the 18K, but for Sol-Ark there is a company that makes these handy little bus bars so you can run single 4/0 cables and not have to either double the cables or use Polaris connectors...

In the past you needed two units each producing 120V, they also had to communicate with each other so they could align the phase of the power to create a 240 circuit for larger energy demands. Many AIO (All In One) Sol-Ark, EG4, Deye, all have the ability to output 240V from a single unit. The...

If they have software-accessible power features, you could potentially put them in sleep/hibernate mode with remote commands. I don't recall if you can tell the Sol-Ark to turn off remotely or if there are any inverters on the market with this feature. Actually, my Victron Inverter can be...

Use the max button, turn on your loads and it will show you the max, aka the surge rush.

It's not just about the ability to add additional batteries/banks, it's also about cost efficiency and wiring cleanliness. A bus bar gives a single source for either negative or positive electrons, saving cable, and allows you to tap the bar for the potential to run multiple devices such as...

I know this isn’t 24 V, but I wanted to share with the community that this device is working perfectly for powering my pi 4 DC 7-60V to 5V Voltage Step Down... https://www.amazon.com/dp/B076ZLHLD3?ref=ppx_pop_mob_ap_share

As @400bird mentioned in his suggestion, sometimes the actual cause of an issue is the most unlikely guess. Testing them individually seems like a good starting point, if they behave differently then you have a baseline to show that the two units are not equal in their behavior. These are...

They're all inverter LG, Mitsubishi, and Mirage mini split units. They all soft start by design, but I'm certainly aware of the big outdoor units that many American homes have and the current inrush.

I presume this can be estimated with a calculation. If you have 500 amp hours, and you use 200 of them, at a maximum of 40 amps charging it would take 5 hours to recharge those batteries back to 100% assuming no loads are consuming some of your maximum 40 amps charging capacity. As the other...

The batteries in my system do not communicate with the Sol-Ark, the batteries communicate with the CommHub and the Hub talks to the Sol-ark using CAN Bus. The Pi to the batteries is what you mentioned, RS485 to USB. Or specifically this cable from Signature Solar. Here is a picture that shows...

I would update your picture "the whole picture" and post it back again for one last review.

Well, I guess I'll have to suggest moving outside the Growatt line. Regarding the inverters, I'm very much aware of the games companies play with numbers. At least the 15K can provide 15 kW during solar hours, whereas the EG4 doesn't get a boost while generating solar and stays fixed at 12 kW...

I think you might have misunderstood what I said, you can see multiple batteries in a single-battery array. What you can't do is see for example an SOK and a EG4 LL battery's details in SA at the same time. You have to choose one protocol or the other for different manufacturers/types. When...

We’ll I got a special deal through a friend of mine that is a solar installer. My Sol-Ark 15K was $5500, plus tax.

@OffGridForGood If you want to be able to quickly see the cell voltages/balance from a phone, my best idea is to use Solar Assistant (SA) and or Home Assistant (HA) in conjunction with SA. Home Assistant Solar Assistant it's not exactly the voltage of every cell, but it's a great overview.

Done, I adjusted it up to 56.6

Yes, especially on the EG4 Lifepower4 batteries, even with the updated firmware they must see at least .5 amps to register discharge.

You might also be able to call a supplier like GreenTech Renewables and see if they have any partial pallets of panels. Typically they'll give a discount on those and "sometimes" let you purchase individually.

Posting my solution for everyone else. I was able to get the Orion hooked up to the generator relay on my Cerbo S GX and trigger it based on SOC to enable and slowly feed 5A max from my 48V system into the 24V system and charge up the batteries. Here are the videos to show my setup and see the...

This guy is pretty reliable and does his research. Might be worth giving this a watch.

Well the guy from Signature Solar who was active on this thread never followed up, I have no idea if this issue is actually been communicated to the appropriate people for consideration. Any ideas on how to get an official bug/glitch/defect reported and logged with EG4?

I have 2x racks of 6x EG4 LifePower4 batteries, I'm using the Communications Hub and I'm wondering if there is a preference for connecting the batteries to the Hub. For example: the manual for the Hub says that each RS485 port 1&2 can handle 15 batteries. Since the batteries, 6 each are in...

Honestly, it's a lot of complexity for something that could probably be easier done with a nice Honda Generator. I know it's not as "Green" but you're running a business and this system will most likely be troublesome to get out of it what you intend to do with it.

In the battery settings of Solar Assistant “SA” choose the Victron option. This will tell SA to track SOC, voltage, current etc from the Victron Shunt. You don’t see the actual Victron interface, you simply see the values from the shunt.

A couple points of clarification for consideration. Solar Assistant (SA) can only communicate with one source at a time for battery information. If I want to view the data from the Victron shunt, I have to stop the connection in SA, and switch the USB input selection to the port the Victron...

I have been looking at this model from Costco and potentially tapping into the wires. https://www.costco.com/firman-7500w-running--9400w-peak-tri-fuel-generator.product.100840185.html

In that specific line you quoted, I was attempting to say that it's not generally in dispute that LF inverters are excellent for inductive loads. It was an assumption about the experience level of forum members and solar folks. If "we" don't all know, there's plenty of information available...

@Watts Happening Reading your post closer, I believe what I mentioned in my prior post is what you're asking for. So the instructions are similar to what @wattmatters provided. install the VS Code extension Create the helper using the utility meter option and have it reset daily. Create a...

The small current shouldn’t hurt the battery since it’s very minimal and temporary. What is most likely to happen is the battery may continue to discharge to unhealthy levels if you can not get a warm enough temperature to charge the battery. Since you’re in a loop situation you’re gonna have...