1. Charger malfunction: Check if there is any physical damage or wiring issue with the charger. It may be due to internal component damage that prevents the correct conversion of current for charging, even if the indicator light shows green.
2. Abnormal battery status: The battery may be fully charged, aging, or faulty. Even if the charger displays a green light, it may not charge due to the battery's inability to receive or store charge. Suggest checking the health status of the battery and considering whether it needs to be replaced.
3. Connection issue: Check if the connection between the charger and the electric vehicle is secure, as poor contact may also cause the charger to malfunction. At the same time, check whether the charging port is clogged with dust or foreign objects, which can affect the charging effect.