Key points in this article
Common misunderstandings
Two widespread views on charging anomalies exist: over-worrying or ignoring them. The closer truth is visible records bring reassurance; taking neither extreme is steady, and the real mistake is opening the manual only after something has already failed.
Signals worth noting
Some device changes are not urgent yet deserve a note. A useful test is writing time points into agreements; when unsure, ask rather than assume. A professional check once costs less than experimenting alone with live equipment that carries real current.
Back to user scenarios
Discussion must return to the user's real feeling. In Yantai districts the questions are handy, worthwhile, and who to call; answering them well makes a plan stand, because field friction reveals more than any specification sheet ever will to anyone.
The best checklist mirrors how the charger is actually used: morning rush, rainy evenings, shared stalls. Test those moments, not a lab scenario, and the anomalies you catch will be the ones that would have stranded a real resident the next day.