Key points in this article
Why the light leads
The status indicator is the first signal a user reads. If its meaning is unclear, confusion starts before charging does. Setting the improvement direction means making state obvious at a glance, not adding more colors nobody recalls later on.
Setting the direction
Improve by mapping each state to one clear meaning. Test it with real users rather than with the spec sheet. The front line shows most trouble comes from assuming people already know what a particular blink is supposed to mean.
Details that communicate
Keep the area ventilated, dry, and free of water. Follow the manual and avoid modifying parts. Save usage records so behavior can be traced. Stop and report on any equipment anomaly, including a dead or flickering light that misleads. A small, steady effort on light is the first user signal and make meaning unmistakably clear protects both users and the equipment over the long run. When light is the first user signal and make meaning unmistakably clear are treated as normal practice, far fewer surprises reach the service team later.