Battery charge % and communication issue

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sjvicker

(@sjvicker)

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Joined: 7 months ago

Posts: 3

Topic starter December 6, 2024 5:09 pm

I have a 6000XP running off of 10 EG4 LL-S batteries. I do not have solar or grid hooked up at this time and I am charging with a chargeverter.

Everything has been running great for about 10 days powering Starlink and a small RV. In the middle of the night my inverter shut off and was providing a 00 (battery communication) error. Battery #1 was showing a red fault light and 0 charge but the remaining batteries had 3 out of 4 green lights on them. I removed battery #1 from the system and reset the dip switches and everything worked fine for a few minutes and then all batteries and inverter shut off. All batteries are now showing 0% SOC and before it shut off, the inverter was showing the batteries at 50% state of charge.

Is this just simply that I ran my batteries out completely and have some issue with my 6000XP display overstating the SOC?

Thanks,
Sjvicker

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sjvicker

(@sjvicker)

Active Member

Joined: 7 months ago

Posts: 3

Topic starter December 9, 2024 6:15 pm

Following up on this.

I connected the com cable to Bat #2 and redid the dip switches on 2-10 so that #2 is actually #1 and so on. My 6000XP only see's 900AH of batteries now but the 10th is still connected to the bus bars and powered on

The 6000XP is now showing what I believe to be the correct SOC for the battery bank.

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Jared

(@jared)

Technical Solutions Supervisor Admin

Joined: 9 months ago

Posts: 257

December 9, 2024 6:46 pm

Would you be able to connect the previous master battery to BMS Tools and post a screen shot of the reading?

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sjvicker

(@sjvicker)

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Joined: 7 months ago

Posts: 3

Topic starter March 4, 2025 9:10 pm

I still haven't gotten around to any kind of Wifi connectivity on my inverters or connecting to my batteries. It's working so it keeps getting pushed down lower on the off grid homestead to-do list.

I did find that its important for me to power each battery on starting with #1 and waiting for it to boot up before doing the next one. When I do this my inverter will see them all right away.

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Pawnee

(@pawnee)

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Joined: 9 months ago

Posts: 115

March 5, 2025 4:15 pm

@sjvicker is all you need for the BMS is a laptop and a cord to connect to the battery. You can download the BMS test off of the EG4 website assuming they are eg4 batteries

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