EG4 Lifepower battery SOC differences

[EastTexCowboy]

Can you please tell me how you got these screen shots? I'm using windows 11 and this is the only program I've ever seen that doesn't support a screen shot by pressing the "Prt Scr" key. What is the trick?

In the search bar at the bottom start typing snipping and it will come up. You can click it then to run it or you can right click on it and pin to your Start Menu or your Taskbar. Personally, I use Snag It but the snipping tool is free.

 

[Dcuste]

Snipping Tool is built in

ok. I don't see a snipping tool icon. How do I find/use the snipping tool?

 

[Zapper77]

ok. I don't see a snipping tool icon. How do I find/use the snipping tool?

Hit the "Start/Windows" Key...Type "Snipping

 

[Zapper77]

ok. I don't see a snipping tool icon. How do I find/use the snipping tool?

You can also use the following shortcut combination.
Win+Shift+S

if that doesn't work...try this link to a MSFT Q/A about "Missing" Snipping Tool.

Snipping Tool Missing from Win11

 

[Dcuste]

You can also use the following shortcut combination.
Win+Shift+S

if that doesn't work...try this link to a MSFT Q/A about "Missing" Snipping Tool.

Snipping Tool Missing from Win11

Thanks. That worked. It turns out the snipping tool is exactly the same as my Prt Scr key that has faithfully worked for me every where else.

 

[RGH69]

Signature Solar has not done anything. Says the manufacturer has denied an "SOP" and they are waiting for a firmware update. So now I have an expensive boat anchor. Been 6 months now.

Do Not Buy Signature Solar unless you don't want a warranty because they will not honor it.

 

[SignatureSolarJames]

Signature Solar has not done anything. Says the manufacturer has denied an "SOP" and they are waiting for a firmware update. So now I have an expensive boat anchor. Been 6 months now.

Do Not Buy Signature Solar unless you don't want a warranty because they will not honor it.

We have a full team working all day honoring warranties and even courtesy replacing things that customers outright broke. your case is being reviewed currently.

 

[Zapper77]

Signature Solar has not done anything. Says the manufacturer has denied an "SOP" and they are waiting for a firmware update. So now I have an expensive boat anchor. Been 6 months now.

Do Not Buy Signature Solar unless you don't want a warranty because they will not honor it.

Are you able to post a bmstest image of all 16 cells from the 3rd battery?

Should look like this.

 

[Dcuste]

We have a full team working all day honoring warranties and even courtesy replacing things that customers outright broke. your case is being reviewed currently.

I'm also having a similar problem with my EG4 LifePower batteries. Over a three day period my six batteries went from 96% SOC down to zero SOC without any evidence from the inverter nor the SolarAssistant of any discharging taking place. The batteries just discharged at about 1kw rate for 30 hours. I also tried to get the data from the EG4 HUB SD card but found the card didn't have any files. Bill Short from SS wrote
"Thirdly, here is a link to extract data from batteries or EG4 Comm Hub. Pulling the memory card will not work as the memory card is being used in ways that don't make any sense to a PC.

Following the instructions on the video, gives this result. I don't know what I'm doing wrong.


Can you help me get a SS team member to help with my case? You can contact Bill Short for all the details. Bill originally told me that he would forward my case, but I never got a reply.

 

[LithiumCowboy]

Time to resurrect this thread. The BMS on the 3rd battery is faulty. Sent emails to SS but not response yet. It has only been one day on the latest round of emails. Here is 3 screenshots taken at different times. Note that battery 3 has not changed at all in each. So, it appears the BMS was faulty and became faultier since.
View attachment 152170

Your using solar assistant which does not read accurate data from the EG4 batteries. You need to take a screenshot of BMS test using the multi-pack tab and show us what the actual SOC% percentages are for your bank. I don't see anything wrong with your bank you just have 1 battery that has an imbalanced SOC. There is no guaranteed equalized loads when using any battery chemistry together in parallel. Welcome to the world of direct current.

"Even with the manual charger, the SOC still showed low on the one battery. Left it on for quite awhile but still nothing. I switched it back to the 6500's but the battery pre-charge sequence kept failing. It finally worked when I unplugged the Solar Assistant module. The solar assistant was really hot also. Now it won't even boot. So I connected the battery coms back to the 6500. Within an hour the SOC on all 6 batteries was at 100% and then they all discharged pretty equally overnight. It appears that the 6500's have better communications with the batteries".

Your main issue to begin with was using solar assistant, it was never an officially supported product that was ever tested. Solar assistant wrote code for Modbus protocols and then vanished and never fixed them relating to multiple battery products.


Were you ever given the password to BMS test and did you ever go into the config tab and change anything yourself?

Are you using closed loop communication?

Do you ever top balance your bank to 100% SOC?

We're all of these batteries installed in your bank at the same exact time?

 

[LithiumCowboy]

Looks fine, other than the SOC reading isn't accurate.

When was the last time that all batteries were charged to 56.5v or higher?

The SOC% isn't reading inaccurate. It's reading accurate. The full battery capacity and SOC% are .5ah off. If your comparing this to solar assistant then it never worked correctly to begin with.

 

[RGH69]

Were you ever given the password to BMS test and did you ever go into the config tab and change anything yourself?

Are you using closed loop communication?

Do you ever top balance your bank to 100% SOC?

We're all of these batteries installed in your bank at the same exact time?

I was never given a password. I am using closed loop comms. I tried but that battery does not accept a charge. The first four were installed first, then two more added later. The battery problem started way before I purchase the 2 additional.

 

[THERED117]

You've been given a path to pursue to fix your problem but you seem to just want to argue about semantics.
SOC is a derived, calculated number. It is not a direct measurement. To reset the accuracy of this calculation, you need to fully charge your batteries. And hold that charge value for a period of time.
Instead of arguing about analogies, why don't you try and figure out how to accomplish this task.

My personal soc issue are driving me to drinking.......more.

 

[RGH69]

Signature Solar sent me a replacement batt ray! I installed it 2 days ago and it is working fine.

 

[Shiv3]

I have 3x eg4 lifepower 4 batteries, They all had various SOH, even thought all had same pack voltage, I tried numerous times to update firm ware. I finally was able to get the firmware updated and SOH is 99.5 on 2 of them and 1 shows 95.6. So we will see what happens.
(For anyone going insane trying to update firm ware this us what worked for me.
1 download latest battery rest program.
2 remove battery cables (+/-)
3 hook up usb to rj45
4 open program
5 turn on battery.
6 communicate with battery, set software battery info to 0, download firmware version fom battery, load new firm ware, reconnect communication via battery test program.
7nturn off battery set dip switch back to address, hook up (+/-) turn on.

 

[Shiv3]

I have 3x eg4 lifepower 4 batteries, They all had various SOH, even thought all had same pack voltage, I tried numerous times to update firm ware. I finally was able to get the firmware updated and SOH is 99.5 on 2 of them and 1 shows 95.6. So we will see what happens.
(For anyone going insane trying to update firm ware this us what worked for me.
1 download latest battery rest program.
2 remove battery cables (+/-)
3 hook up usb to rj45
4 open program
5 turn on battery.
6 communicate with battery, set software battery info to 0, download firmware version fom battery, load new firm ware, reconnect communication via battery test program.
7nturn off battery set dip switch back to address, hook up (+/-) turn on.

Well all 3 are charged, SOH is 99.5%,99.5%,99.6%.
All show 100AH, currently bus voltage @57.5.
Any body know what it might take to get a 100%SOH?

 

[Shiv3]

Well all 3 are charged, SOH is 99.5%,99.5%,99.6%.
All show 100AH, currently bus voltage @57.5.
Any body know what it might take to get a 100%SOH?

 

[Shiv3]

 

[Zapper77]

View attachment 167866

You have 160 cycles...99.5% SOH is good.
SOH will drop as you cycle the battery and typically won't go back up.

 

[Shiv3]

Ok, but I also have other brands that are 100 SOH with 2-3x the cycle count

 

[Zapper77]

Ok, but I also have other brands that are 100 SOH with 2-3x the cycle count

I suspect that the bms bases the SOH on cycle count and the BMS in those older batteries doesn't.

 

[DougfromdaUP]

Ok, but I also have other brands that are 100 SOH with 2-3x the cycle count

You have batteries with almost 500 cycles that tell you they haven’t lost even a tenth of one percent of their capacity and you believe them?
It’s a guess.

 

[Zapper77]

Ok, but I also have other brands that are 100 SOH with 2-3x the cycle count

@DougfromdaUP worded it perfectly.

 

[Shiv3]

The BMS pictures posted were after the firmware update. Prior to this update, my batteries SOH was 97.3%,97.3%,97.9%. The SOH started dropping after the first 10 cycles. -0.01 after every 10-15 cycles. My other batteries with high 200 to mid 300 cycle counts are still 100 SOH. A built pack with the same cells and a overkill solar BMS has actually gained 0.5 ah. I feel as though something with 6000 cycles to 80% should not be dropping so fast -0.01 every 100 cycles. Am I wrong?

 

[Zapper77]

The BMS pictures posted were after the firmware update. Prior to this update, my batteries SOH was 97.3%,97.3%,97.9%. The SOH started dropping after the first 10 cycles. -0.01 after every 10-15 cycles. My other batteries with high 200 to mid 300 cycle counts are still 100 SOH. A built pack with the same cells and a overkill solar BMS has actually gained 0.5 ah. I feel as though something with 6000 cycles to 80% should not be dropping so fast -0.01 every 100 cycles. Am I wrong?

Ok let's do some pointless math.

160=0.5%
320=1%
3200=10%
6200=20%

Would you look at that 80% SOH after 6000 cycles.