Remote Battery Update Guide for EG4 18KPV Hybrid Inverter

Quick guide from the manual

This document provides instructions for performing a remote firmware update on EG4 WallMount 280Ah or EG4 LL-S/V2 100Ah batteries through the EG4 18KPV Hybrid Inverter. Important: Do not power any loads during the update process, as this will interrupt the update and cause the system to shut off, requiring a manual restart.

Preparation and Login

Begin by logging into the EG4 Monitor Center portal. Ensure that the battery you intend to update is visible in the portal and that you have selected the correct inverter station.

Maintenance Settings

Navigate to the Maintenance tab and click Read. For a successful remote update, the Lithium Brand setting must be configured to Lithium-1.

Performing the Update

1. Navigate to the Remote Update section under the Maintenance tab.
2. Confirm the correct Station name.
3. Click Choose File and select the firmware file named EG4 18kPV to PowerPro.bin.
4. Click Upload File to upload the firmware to the online portal.
5. Once uploaded, click Update in the Action column.
6. A progress bar will appear. Once it reaches 100%, the file is downloaded to the inverter.
7. The Update Status will change to Success. Do not power off the inverter or battery at this stage; the programming will begin automatically.

Monitoring the Update

During the update, the inverter screen will display BMS downloading and BMS programming progress bars. Once both tasks reach 100%, the battery has been fully updated and will restart automatically.

Safety Warnings

Double-check that the correct firmware file is selected before uploading. Uploading an incorrect file will result in a soft-bricked BMS, which will require a manual RS485 update using a Windows computer to restore functionality.