What Are the Reasons for Low Charging Current in New Energy Vehicles?
2 Answers
Reasons for low charging current in vehicles include not only poor line contact and slipping of the drive belt but also issues like poor brush contact and temperature problems. Overheating of the Charging Gun Head: When the charging power is displayed as low or zero, it may be due to the overheating of the charging gun head, which can feel hot to the touch. The solution is to switch to another charging station. Low Battery Temperature: A snowflake symbol on the battery level indicator of an electric vehicle signifies that the battery temperature is too low. This warning may appear in some regions during extremely cold winters. Solution: This is a normal phenomenon; wait patiently. After plugging in the charging gun, the vehicle's battery begins to warm up, and as the battery temperature rises, the charging power will gradually increase.
I found there are quite a few reasons for low charging current in new energy vehicles. The most common one is charging equipment issues, such as insufficient output power from the charging pile itself, possibly due to aging equipment or public chargers being too busy with current limitations. The connection part is also crucial—if the charging gun head isn't plugged in tightly or has dirt, it can lead to poor contact and increased resistance, preventing the current from rising. On the vehicle side, the battery management system automatically limits current to protect the battery in low temperatures, avoiding cold damage; it may do the same in high temperatures. Incorrect software settings, like selecting slow-charging mode instead of fast-charging, can also result in low current. Some less common situations include aging cables or unstable voltage, and overloaded household wiring affecting charging. I recommend first trying different charging piles and ensuring the gun head is plugged in tightly, preheating the vehicle before charging in winter, and avoiding direct sunlight in summer. If the problem persists, visit a professional shop for inspection to prevent battery lifespan reduction—safety is important. When charging current is low, don't force high-voltage charging; patiently identify the cause.
