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Requesting EG4 Help from the DIY Community

Wes975

New Member
Joined
May 19, 2023
Messages
63
Location
Missouri
Good afternoon All,

I'm in need of some assistance with my new hardware I purchased from SS. List is below.
I did send an email support request to SS two weeks ago and have had no response to date. I called every night on the drive home (1 hr 40 min ride) and remained in que until last week Wednesday when my call was finally picked up. I explained the issues I was having and the Tech sent me an information request. I completed the request the best I could with what I had (photos of the issue ect..) and returned the email that day. Haven't had a response yet as of today.

List of purchased items -
36 @ Blusun 460W Bifacial panels
2 @ EG4 6500 EX-48 inverters
6 @ EG4 LL Batteries
1 @ Rack system
Lot of supporting hardware for the initial system.

I flashed the latest firmware to the inverters as I powered each one up.

Initial setup-
Attached 3 panels to PV1 and 3 panels to PV2 to invert #1 (inverter #2 stayed in the box)
Grounded the battery rack system and inverter #1 to a ground rod
No grid power attached
No AC loads attached

Goal was to charge each battery individually. While charging the first battery there were no issues. While charging the second battery, I noticed the incoming watts reading on invert #1 was way off. See photo's below.

PV2 Wrong Watts 1.PNGPV2 Wrong Watts 2.PNG

I confirmed these readings match what was on the inverter. To my knowledge, 3 - 460 watt panels would never provide that many watts, the math just doesn't work. I tried swapping the PV arrays around and the issue always stayed on PV2. My concerns are the incorrect watt reading and if it was clipping any power. I pulled inverter #1 out of service and returned it to the box. I need to determine if this inverter is defective and needs to be returned or if I need to do some additional testing.

Installed inverter #2 and had no issues with incorrect watt readings.
Managed to charge batteries 3 through 5 (individually) with no issue.

Charging the last battery -

When I went to charge this battery, it kept going into protection mode and never tripped the breaker. I then pulled it out of the system.
The picture of the electrical components shows the cable I found disconnected from the PCB – I read that some of the shipments this had come loose during transit.
So I plugged it back in, powered up the battery and used the BMS tool to pull the data from the battery. No changes were noticed. The display voltage matched the voltage on my multimeter.

Battery Resistor Plug.jpgBattery BMS Report.png

Naturally, this battery has been removed from the system. I need to determine if it needs to be returned or perform additional testing.

Just a bit of my background, I spent many years working with industrial electronics and in automation, so these devices don't make me nervous.
I've since gave that up for Project Management, easier on my body - not so much the brain.

Any help / suggestions from the Community would be greatly appreciated.

Thanks
 
Hey Wes, I just helped my neighbor through an EG4 batt warranty with SS. Keep us posted on how it all goes.
 
Hey Wes, I just helped my neighbor through an EG4 batt warranty with SS. Keep us posted on how it all goes.
I will post updates on the status of both the inverter issue and the battery issue.

As mentioned above, I provided all of the information I could to the Tech handling my ticket. I did find it odd that they requested pictures of the battery dip switch settings considering the battery in question is in the box it shipped in. I did as requested.
Didn't have any feedback yesterday from the Tech and will send a follow up email this morning.

What issues was your neighbor having if you don't mind my asking?
 
I will post updates on the status of both the inverter issue and the battery issue.

As mentioned above, I provided all of the information I could to the Tech handling my ticket. I did find it odd that they requested pictures of the battery dip switch settings considering the battery in question is in the box it shipped in. I did as requested.
Didn't have any feedback yesterday from the Tech and will send a follow up email this morning.

What issues was your neighbor having if you don't mind my asking?
Bad BMS. It's dropping output to varying degrees randomly when loads are applied. All the cells look good. I have done extensive testing with signature solar on the phone and they have finally come to the same conclusion I did after a few rounds of calls/videos, etc....usual phone support type stuff.
 
Good morning!

Week three in wait update.

Requested an update from the SS Tech last Friday. Got an email response late yesterday. He asked if I was still having issues with the battery. Told him it was still sitting in the box and can't be used. No questions, feedback or suggestions regarding the inverter issue. Forward movement!?

In my three weeks of hands on learning I've finally set up USE mode last weekend. What a world of difference that made! I've been chasing random battery voltage loss and PV input loss - while never losing AC out power for three weeks. Something in the EG4 charging / monitoring mode software is glitchy and needs additional fine tuning. SA proved to be a big help along with my Fluke in determining I wasn't losing either one.

My financial advisor (wife) is much happier - no random beeping at random times throughout the day and night.

The wait continues................
 
Thank you to Kaleb @ SS for working on this with me this morning.
Took ohm readings at the DC outputs, ohm readings at PV1 and PV2.
For what its worth possibly to others -
Ohms at DC out - OL reading on my fluke. No shorts - that's a good thing!
Ohms at PV1 - 277.0 k
Ohms at PV2 - 282.5 k
Not sure what should be seen at the PV inputs - I'm not about to take my other inverter off line to find out.

I've been escalated to Tier 2 support. Anyone have feedback on their experience with the Tier 2 Tech's?
 

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