What are the reasons for the BYD e5 charging gun tripping?
2 Answers
The main reason for the BYD e5 charging gun tripping is that the power of the charging pile is greater than the circuit power. The following are the related reasons and solutions: 1. Power mismatch: In terms of the power of the charging pile, the charging power is 3.5kW (220V, 16A) and 7kW (220V, 32A). When the power of the charging pile is greater than the circuit power or the on-board charger power is greater than the power of the charging pile, it will cause the charging gun to trip. Solution: Find a charging pile with the correct power for charging. 2. BMS communication problem: There is a problem with the communication module between the vehicle's BMS and the charging pile, causing it to send wrong commands and leading to the charging gun tripping. Solution: Perform a software upgrade for the vehicle.
I've been using the BYD e5 for almost three years now, and I've encountered charging interruptions multiple times. The main issue is poor contact at the charging port, especially after rain when moisture gets in and causes oxidation of the metal contacts, leading to poor connection. The charger then detects an abnormality and automatically cuts off the power. Another common reason is excessively high battery temperature. Charging outdoors in summer for over an hour can raise the battery pack temperature above 45°C, triggering the protection system to forcibly disconnect. The charging station itself also matters—older DC fast chargers with unstable voltage or abnormal data communication can cause interruptions. A minor but important detail is if the charging gun isn’t fully inserted; if the latch doesn’t make a crisp click sound, there’s likely poor contact. Lastly, a reminder to everyone: onboard charger malfunctions can also cause interruptions. A fellow owner experienced this when the cooling fan in the charging module failed, causing the system to overheat and shut down. Always remember to dry the port before charging and avoid high-temperature periods for the safest experience.
