Why does the electric vehicle show a green light when charging after being left unused for a long time?

[LeAnastasia]

When an electric vehicle shows a green light while charging after being left unused for a long time, it is usually because the battery has been inactive for an extended period, leading to dehydration and sulfation, which necessitates battery replacement. To avoid long-term power loss, which can cause plate sulfation, it is important to take precautions. In low-temperature conditions, charging issues primarily include poor charging acceptance and insufficient charging, resulting in battery power loss. During cold weather, insulation and anti-freezing measures should be implemented, especially by placing the vehicle in a warm environment while charging. This helps ensure full charging, prevents irreversible sulfation, and extends the battery's lifespan. It is crucial to avoid storing the electric vehicle's battery in a discharged state, which means the battery was not recharged promptly after use. Storing the battery in a discharged state can easily lead to sulfation, where lead sulfate crystals form on the plates, blocking ion channels and causing insufficient charging, ultimately reducing the battery's capacity.