Check first
- Is SOC live and updating on the display? No live SOC = comm problem — the crossover cable check comes before any settings work.
- Is charging even scheduled right now? Mode and TOU window on the platform’s settings page — a battery told to idle until a window opens is obeying, not failing.
- What does the display flag? Note the exact message and the SOC/voltage pair.
After any comm repair on this flow, finish with the full-charge SOC verification from
SOC Mismatch — drift accumulated while the link was down does not
clear itself.
Escalate when
- BMS stays silent after the cable is verified against the pin card and the battery selection is correct — battery-level case.
- A pack refuses the official wake procedure. [KNB-VAL-21]