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RS485 Firmware/Changelog- Z02T13- Indoor- This Firmware includes the fix to the display error issue on the EG4 Monitoring webpage as well as other changes.
You can also download the firmware on our EG4 Website
EG4® WallMount Indoor 280Ah Lithium Battery - EG4 Electronics
Posted : February 19, 2026 3:51 pm
PowerUp reacted
@eg4eric Thank you, this solved the client issue. We installed and have tested. Forum members should know that it can take 15+ minutes for battery firmware to register with inverter and clear data (in our case we needed to delete the old battery from the list - not sure if it would have removed itself on its own). This should be listed as closed now. A big relief!
Posted : February 24, 2026 7:57 am
