Installation guide for BYD B-Box HV high‑voltage battery box, covering safety, preparation, wiring, and system startup.
The B-Box HV is a high‑voltage battery box designed for household energy storage, operating at 200‑500 V and supporting serial and parallel module connections. This guide provides the information needed to safely install and commission the system.
It includes safety warnings, product overview, BCU introduction, interface descriptions, inverter configuration lists, preparation steps, detailed installation procedures, connection to the inverter, system boot, and shutdown instructions.
| Operating voltage range | 200–500 V |
|---|---|
| Serial connection capacity | 5–9 battery modules |
| Parallel connection capacity | 2–5 system sets |
Select ‘Reboot and Restore’, choose ‘Restore’, and press ‘Reboot’; note that all configuration settings will be lost.
Open the ‘BMS Parameter’ menu on the left side of the interface to view charging and discharging protection parameters, temperature limits, and other settings.