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Symptom: sun or grid available, yet the battery sits at the same SOC — or charge current is far below expectation.

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Check first

  1. Is SOC live and updating on the display? No live SOC = comm problem — the crossover cable check comes before any settings work.
  2. 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.
  3. 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.

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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]
  • E400/E403-class faults survive the one-restart rule.

Escalate to Kent New Energy service only — through your registered Kent partner channel or the Kent service desk details on your work order. Do not contact any third-party or component-manufacturer support line for a Kent-branded system: tickets outside the Kent channel are not tracked, not covered, and can void warranty handling.