Data from the BMS
| Item | Detail |
|---|---|
| State of charge | As computed by the BMS, with remaining capacity |
| Voltage, current, power | Signed: positive when charging, negative when discharging |
| Cells | Every cell voltage, min / max / delta |
| Temperatures | Cell probes and BMS board |
| Health | State of health and cycles |
| Events | Warnings and protections, timestamped |
Available values vary with the model and BMS firmware; we test on BSLBATT batteries before shipping and focus on the models our order customers have.
Several batteries
Stacks of rack batteries are linked with addresses on the communication bus. Tell us how many you have; reading them all is part of our tests.
Displays
- Screen on the box with charge, power and status.
- Dashboard at
http://moniwatt.local. - Home Assistant via MQTT auto-discovery.
- JSON API for other software.
- Remote dashboard, optional, with history and alerts.
What it does not do
It does not change BMS settings and does not take over the battery–inverter communication. Your inverter still gets its charge limits from the battery, exactly as before.