How does the 3923 monitor batteries without additional wiring?

The 3923 uses power line carrier (PLC) technology to transmit measurement data over the existing battery busbars and cabling — eliminating the need for separate communication wiring between monitoring modules and the controller. Each module clamps directly to individual cells or monoblocs, measuring voltage, internal resistance via multi-frequency AC injection, and temperature. Data reaches the central controller through the power conductors, reducing installation complexity in large battery rooms.

What battery types and configurations does the 3923 support?

The system accommodates 2V, 6V, 12V, 24V, and 48V cells across lead-acid (VRLA, flooded) and lithium chemistries. A single controller manages multiple monitoring modules — one module per battery group — with bus voltage and charge/discharge current measured at the string level. Remote capacity discharge testing automates periodic maintenance by recording per-cell voltage drop under load and generating diagnostic reports without manual intervention.