Per battery
| Data | Note |
|---|---|
| State of charge, remaining Ah | Directly from the BMS |
| Voltage, current, power | Charging or discharging, live |
| Cell voltages and spread | Every cell, min / max highlighted |
| Temperatures | Cells and electronics |
| Heater status | On SOK models with self-heating, as the BMS reports it |
| Cycles, health | Long-term ageing |
| Warnings, protections | Why charging or discharging stopped |
For the whole rack
Total energy stored, total power, and a side-by-side view of all packs so the odd one out is obvious.
Off-grid friendly
- No internet required for any local feature.
- Very low consumption.
- Restarts on its own after a power cut and picks up where it left off.
Views
Screen on the box, local dashboard at http://moniwatt.local, Home Assistant through MQTT, JSON API, and an optional remote dashboard with history and CSV export.
Read-only
The box never writes to the BMS and does not replace the link between your batteries and your inverter or charge controller.