Key points in this article
One line worth keeping
If you remember one thing, let it be: verify in small steps before scaling. Around charging anomalies this holds in most cases. Many do the reverse and the gap shows over time. A step of attention early costs less than repair later, when a hasty change spreads the fault.
What to do when something appears
If an anomaly arises, take three steps: stop use and keep the scene, contact the responsible party, then record. One order cannot slip: turn individual cases into a mechanism. Most trouble we reviewed traced back to cutting corners rather than confirming the root cause first.
From the user's view
We reason backward from the user's real experience. Handy, safe, reachable are the hardest yardsticks. Pretty specs that fail daily are useless. In Yantai we value what holds up, not what looks good. We sample first, then scale, so the fix survives real use. Confirming the cause before acting turns a scary anomaly into a managed event instead of a failure that spreads across the entire site.