Update for Beta Testers — Multi-Unit Support
Posted: Mon Sep 07, 2026 12:15 pm
We've added a Device Name feature to BossMonitor. This was requested by an installer running two independent inverter
systems sharing a common battery bank, each with its own GridBoss.
The Problem
When two BossMonitors are on the same network, both answer to the same name in the browser and both appear as
"BossMonitor" in Home Assistant — making it impossible to tell them apart.
The Solution
You can now assign a custom name to each BossMonitor in Communication Settings → Device Name. For example: "System 1"
and "System 2".
Once set:
- The browser tab updates to show the device name
- The page header updates live
- Home Assistant sees two distinct devices with their own names
- The network discovery tool identifies each unit separately
For Single-Unit Users
No action needed. If you leave the Device Name field blank, everything works exactly as before.
Home Assistant Note
If you use MQTT with Home Assistant, you will see a new device entry after updating. This is expected — the device
identifier is now unique per unit (MAC address based) to properly support multi-unit installs. You can safely delete
the old "EG4 BossMonitor" device entry in HA once your entities have migrated to the new one.
Look for a code release soon.
systems sharing a common battery bank, each with its own GridBoss.
The Problem
When two BossMonitors are on the same network, both answer to the same name in the browser and both appear as
"BossMonitor" in Home Assistant — making it impossible to tell them apart.
The Solution
You can now assign a custom name to each BossMonitor in Communication Settings → Device Name. For example: "System 1"
and "System 2".
Once set:
- The browser tab updates to show the device name
- The page header updates live
- Home Assistant sees two distinct devices with their own names
- The network discovery tool identifies each unit separately
For Single-Unit Users
No action needed. If you leave the Device Name field blank, everything works exactly as before.
Home Assistant Note
If you use MQTT with Home Assistant, you will see a new device entry after updating. This is expected — the device
identifier is now unique per unit (MAC address based) to properly support multi-unit installs. You can safely delete
the old "EG4 BossMonitor" device entry in HA once your entities have migrated to the new one.
Look for a code release soon.