EG4 PowerPro batteries suddenly died

thepetersms · Apr 6, 2024

I have two eg4 powerpro wall mount batteries hooked up to one eg4 18kpv. All has been working great lately until tonight. I go into my shop/office tonight and look at the system as I do almost every night and notice the batteries are at 0%. This had me scratching my head as I looked earlier today and they were fully charged.
I've restarted everything, updated the inverter firmware with no success. Even the small LCD screen on the batteries is in protection mode and at 0%.
I tried setting it to grid charge and it won't even charge from that.

Anyone have any ideas?

Luxpower_Gilbert · Apr 6, 2024

you might need to update the firmware of the eg4 powerpro.

42OhmsPA · Apr 7, 2024

Why would any firmware updates be needed if everything was working great per the op?

NC_hydro · Apr 7, 2024

Just picture Gavin Newsom saying…That’s Eg4! Instead of “That’s California”

BentleyJ · Apr 7, 2024

Since it looks like Batt-Inverter communication was lost first then the low batt warnings came second. I would suggest trying to establish coms and if that doesn't work. Shut off coms and SoC control and go back to voltage based charging. Let us know if that worked.

thepetersms · Apr 7, 2024

BentleyJ said:
Since it looks like Batt-Inverter communication was lost first then the low batt warnings came second. I would suggest trying to establish coms and if that doesn't work. Shut off coms and SoC control and go back to voltage based charging. Let us know if that worked.

I swapped out the battery com cable from inverter to main battery and changed it to voltage charging. It's now charging. But the big question is where the heck did all the power go from both batteries???? It was at 99% charged as then 2 minutes later it went to 0

HighTechLab · Apr 7, 2024

thepetersms said:
I swapped out the battery com cable from inverter to main battery and changed it to voltage charging. It's now charging. But the big question is where the heck did all the power go from both batteries???? It was at 99% charged as then 2 minutes later it went to 0

The SOC could be out of calibration - try charging them up as much as you can and it should reset the reading. The other thing could be the 100% was a false reading somehow, and once the batteries detected they were empty you experienced a system shutdown and they updated their reading.

BentleyJ · Apr 7, 2024

Monitor the recharge cycle with regard to time and how many Ah it takes to reach full charge. You may find the battery was not actually at 0%. The theory being if the coms failed, one would not expect the readings to be accurate anymore.

thepetersms · Apr 7, 2024

Ok batteries are fully charged and I updated the firmware on both batteries. I'll continue to monitor the system.
One question I have, what's the difference between the eg4/lux and P07-Lux CAN protocols?
One would think the main battery should be set to eg4/lux but signature solars setup video says to put it on P07-LUX

Redflyer · Apr 7, 2024

I had that happen one night as well. Never figured out were all that battery power went either

EG4_Jared · Apr 8, 2024

thepetersms said:
Ok batteries are fully charged and I updated the firmware on both batteries. I'll continue to monitor the system.
One question I have, what's the difference between the eg4/lux and P07-Lux CAN protocols?
One would think the main battery should be set to eg4/lux but signature solars setup video says to put it on P07-LUX

They are functionally similar; however, I would recommend using CAN communication over RS485 if given the option. Also, if this continues, I would make sure to check the link on the ethernet cable as well.

wpns · Apr 8, 2024

Redflyer said:
I had that happen one night as well. Never figured out were all that battery power went either

It didn't go anywhere, it never existed in the first place. Once the battery SOC calibration drifted enough that the battery thought it was fully charged when it was nearly discharged, you were in for a rude awakening when you used the last of the (actual) power in the battery and it shut down. [Hopefully the new firmware solved the problem as I've got a similar setup on the way, and am curious how to reset SOC occasionally (and how often?) to prevent calculated versus actual SOC from causing the above issue.]

EG4 PowerPro batteries suddenly died

thepetersms

New Member

Luxpower_Gilbert

Luxpert @Luxpower USA Team

42OhmsPA

What's in a title?

NC_hydro

Solar Enthusiast

BentleyJ

Solar Wizard

thepetersms

New Member

HighTechLab

AKA Dexter - CTO of Current Connected, LLC

BentleyJ

Solar Wizard

thepetersms

New Member

Attachments

Redflyer

New Member

EG4_Jared

Online Support for EG4 Electronics

wpns

Solar Joules are catch and release

Similar threads