What does it mean when the electric car charger shows a yellow light?

1 Answers
SanSkylar
07/30/25 8:57am
Electric vehicle charging showing a yellow light may be due to the battery being fully charged and not requiring further charging. It could also indicate damage to the electric vehicle's battery or the charger itself. Below is additional information: Specific reasons: When the electric vehicle charger is first plugged in, it shows a red light (indicating charging is in progress), then switches to a yellow light (indicating a false full charge). Continuing to charge for one to two hours will result in a true full charge. If this is the case, there is no need to worry as it is a normal part of the charging process; the electric vehicle is only falsely indicating a full charge. Precautions: Avoid storing the battery in a depleted state. A depleted state refers to when the battery is not charged promptly after use. In this state, sulfation is likely to occur, with lead sulfate crystals adhering to the plates, blocking ion channels, leading to insufficient charging and reduced battery capacity. The longer the battery remains idle in a depleted state, the more severe the damage. When the battery is not in use, it should be charged once a month to extend its lifespan. Regular inspection: Regular checks are essential. If the electric bicycle's range suddenly drops by more than ten kilometers in a short period during use, it is highly likely that at least one battery in the pack has issues such as broken cells, softened plates, or shedding of active material from the plates, causing a short circuit. In such cases, promptly visit a professional battery repair facility for inspection, repair, or replacement.
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