System with 3 batteries

[zh17home]

Hello,

Since the last firmware from Solaredge Firmwares and the last HA updates + SMM, the system with 3 batteries, two stays at STATUS_DISCHARGE and one at STATUS_CHARGE when using MSC.

The only way to solve the issue is to power off and power on the batterie with a different state... (STATUS_CHARGE), after that, it change to STATUS_DISCHARGE, now the 3 batteries at full "sync" in the same state.

If I force the mode to DME, the two batteries that was in DISCHARGE change to CHARGE and the other that was CHARGE goes to DISCHARGE.

It seems they are out of sync :(

Can we issue be something wrong from solaerdge-modbus-multi ?

thanks

[zh17home]

Hi, the problem was a melted MC4 connector.

There is a new document from solaredge, if 2 or 3 batteries are connected is needed cables with 10mm / MC4 10mm with Y cable 6mm to 10mm.

[Noodleyman]

@zh17home , sounds like you sorted it out. can you share the link to the document you mentioned? I'm considering more batteries in my system so the information would be helpful.

Would you also be willing to share your experiences with the multi-battery setup?