Markus_EG4
I am from Germany. Don't mean to come off rude
Well Im out of options
EG4 Lifepower4 48V Top Balancing Firmware.
- Thread starter Markus_EG4
- Start date
Markus_EG4
I am from Germany. Don't mean to come off rude
I have never seen this before. This is the first time I have seen this.
n2aws
Solar Addict
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Alright, that photo shows me that all of my concerns are addressed except one.
You still haven't mentioned if you've cycled the breaker off/on, but I'm going to proceed with the assumption that you have.
The last 2 things I would consider:
I see you have 2 USB com ports on that machine. I'd unplug the one you aren't using in case there are conflicts.
If it is physically disconnected, and it still shows 2 in the device manager, that is probably the smoking gun. This would be a windows device/device driver issue.
If you actually have 2 plugged in, remove one and try again with the other.
If that fails, the last resort is a factory reset using that reset button by the DIP switches.
One question. Is the programming cable the newest one from SS? I absolutely had the same terrible experience even if I tried to make my own programming cable using instructions found in this thread. I gave up but once I got the new cable from SS, everything was honky dori even with my original pack ids and just setting the iD in the software.
Markus_EG4
I am from Germany. Don't mean to come off rude
Im going to have a New firmware cable shipped to you
42OhmsPA
What's in a title?
Public Service Announcement
@Markus_EG4 deserves one hell of a raise and/or bonus. He keeps fighting the good fight.
I'm surprised with his knowledge and drive he hasn't found another company to work for, Indeed.
@Markus_EG4 deserves one hell of a raise and/or bonus. He keeps fighting the good fight.
I'm surprised with his knowledge and drive he hasn't found another company to work for, Indeed.
n2aws
Solar Addict
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Honestly, from my interactions with them.. I don't think EG4 is a bad company. Nor signature solar.
I *do* think they are suffering from the same thing most businesses do when they start getting bigger. They have growing pains, they have to move from a "we'll figure it out as we grow" mentality, to actually establishing formal processes and procedures.
I think they'll get it figured out. There are just some unpleasantries along the way currently. Compund that with the generally "negative" nature of the internet and an echo-chamber that is a forum focused on one specific thing.. and you tend to get a jaded view of things.
It's important to remember, most people aren't going to post about their awesome experiences, though some will. almost nobody is going to post about their "unremarkable but good" experiences (such as, I bought a thing. it was shipped in a reasonable time, and it worked"), but *most* will post about their negative experiences and interactions. So what ends up happening is, a forum such as this is full of complaints and "whoa is me" posts. However it doesn't give you a good overall understanding of the state of things.
As an example, (unrelated but makes the point, so you can stop reading here if you don't care) I'm in another forum/group dedicated to a specific vehicle. In the average week, we'll see a post or two about how horrible the vehicle is compared to some other vehicle (and usually its not a fair comparison, though sometimes it is) and how that person regrets their buying decision and is taking it back to the dealership.. etc etc.. If you took things at face value, you'd wonder if the vehicle was just a horrible product. Then you realize there are 30 THOUSAND active users in the forum/group.. and begin to understand that.. 2 out of 30 thousand.. isn't terrible. Moreover, when you realize that several of those "2" are repeat posters complaining about different aspects of the vehicle, you begin to see the reality.. a handful of people bought the wrong vehicle for their needs/lifestyle/purpose, and just need to crap all over it. (When in this case, often just a few hours of research, or a freaking test drive of the vehicle) would have prevented the buyers remorse. The problem is, nobody wants to take accountability for their own actions and decisions. 90% of the negative posts are simply from people with unrealistic expectations or who didn't research before spending 10s of thousands of dollars.. But again, at face value.. you think you see these "recurring themes" and it gives you a narrow/jaded viewpoint.
Markus_EG4
I am from Germany. Don't mean to come off rude
Attachments
n2aws
Solar Addict
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That has 2 PDFs to download, but no firmware.
Markus_EG4
I am from Germany. Don't mean to come off rude
Hit the next download button after the one you clicked. The website is still being worked on I just found that bug as well
EG4_Ty
EG4 Electronics Support
@ddeatrich @n2aws Here is the latest firmware for the communication hub. It will be back on the website today as well.
Thank you! And thanks everyone for checking this.
I have Growatt 3000TL-LVM-ES and a single EG4 Lifepower 4 battery
Having a problem where SOC would drop from 7% to 1% thus triggering a forced grid charge even though I was in OSO mode.
performed firmware upgrade
SOH went from 97.1% to 99.4%. Hopefully this fixed my 7% to 1% issue
Having a problem where SOC would drop from 7% to 1% thus triggering a forced grid charge even though I was in OSO mode.
performed firmware upgrade
SOH went from 97.1% to 99.4%. Hopefully this fixed my 7% to 1% issue
Zapper77
Renaissance Man
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- Jul 23, 2022
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- 2,326
What was the actual battery voltage. Have you reviewed the battery bms logs for clues to what happened?
No, I don't know how to review the logs or what I would be looking at. cell voltages are all in the 3.36v right now but it appears to be balancing. Any guidance would be appreciated.
Zapper77
Renaissance Man
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- Jul 23, 2022
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- 2,326
Just keep an eye on the cell top balance.
3.36v per cell isn't full. What SOC is the battery reporting right now?
n2aws
Solar Addict
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If it drops from 7% to 1% in a very short time, then I would suspect that the cells were out of balance.
The firmware update should resolve this issue itself over time, assuming the pack is occasionally charged to full (at least weekly)
If you need it resolved sooner than that, I'd charge the pack to full, and let it *stay* full until the top balancing is done. But if you don't need it resolved immediately, it's easier to just let the pack correct itself over a few full charges naturally.
You can use the BMS software to look at the cell balance. Be aware, you may not see an obvious imbalance until the pack is nearing full SOC, due to the voltage curve on this chemistry. from about 20% to 80%, the cells may look like they are balanced when they actually aren't. Look at the max_diff(V) field, when the pack is nearing 100% SOC.
99.6%…. but it’s discharging right now while I’m charging my Leaf with full sun. I’m gonna let it discharge for a little while and then Let it recharge and top balance. It was near 100% when I did the firmware update and it immediately started balancing cells and even gave a overvolt error briefly before it settled down.