What are the reasons for a new energy vehicle's BMS failure preventing charging?
1 Answers
New energy vehicle BMS failure preventing charging can be caused by poor contact, poor contact of internal battery connectors, or battery reaching the end of its lifespan. Detailed explanations are as follows: Poor contact: Poor contact includes many aspects, such as poor contact between the fuse tube and fuse holder, poor contact between plugs and sockets, or poor contact between the charger and power source. These can all affect the normal charging of electric vehicles, leading to situations where the battery cannot charge or cannot fully charge. The solution is to promptly check power-related issues such as plugs. Damaged internal battery wiring: This is mainly due to connection issues between the battery's positive and negative terminals, which could be poor internal contact of components themselves, poor contact during component interconnection, or poor soldering (usually between components and PCB). The solution is to reconnect or replace the wiring. If this doesn't work, the only option is to go to a 4S store for repair. Battery reaching end of lifespan: Generally, a battery's lifespan is about 5 years, but frequent incorrect charging methods can lead to premature battery failure. Average charge/discharge power, battery storage and operating environment temperature, and charge/discharge depth also affect battery lifespan and usage power. The solution is to replace the battery.
