Why does an electric car suddenly lose power while driving? What could be the issue?
3 Answers
Electric vehicles suddenly losing power is mainly caused by poor contact in the power supply lines of the battery. Here are the relevant explanations: Poor contact: During driving, vibrations can lead to poor contact in the power supply lines. In this case, you can check the fuses and connectors, and tighten the wiring. It should be fully charged before use: Newly purchased electric vehicles should be fully charged before use. Many electric vehicles have been sitting in stores for several months, or even more than half a year, so they must be fully charged before use. After full charging, it is best not to use them immediately; let them sit for about ten minutes. During battery transportation, avoid dropping, rolling, or heavy pressure.
I think sudden power loss in electric vehicles is quite common. I've experienced it a few times myself, mostly due to battery system issues. When the battery level is too low or the temperature is too high, the controller will automatically cut off power to protect the motor, especially after long-distance driving in summer. Another possibility is software glitches, like minor bugs remaining after system updates that suddenly cause a crash. It could also be a blown fuse or poor wiring contact, similar to traditional cars. If this happens, don't panic—immediately pull over safely, turn on the hazard lights, and try restarting the car a few times. If there's still no response, contact roadside assistance. For regular maintenance, have the shop check the battery health and cooling system, and charge regularly without waiting until completely drained. This can significantly reduce the risk of breaking down midway.
The electric car suddenly lost power while driving. I suspect the battery overheating protection system likely activated, as all modern EVs have this built-in safety feature to prevent fires. It could be a malfunction in the battery management module causing false triggering, or a software conflict leading to system freeze. Alternatively, aged battery modules or faulty individual cells might interrupt power supply - check the dashboard warning codes. A less common possibility is an improperly secured high-voltage charging port, though this rarely affects operation while moving. For troubleshooting: park the vehicle, wait a few minutes for battery cooling, then attempt restart. If unsuccessful, professional diagnostic tools with computer connection are needed to read error codes. Since the battery is the EV's core component, comprehensive inspections every six months are essential for preventive maintenance.
