What are the reasons for battery failure displayed in new energy vehicles?
1 Answers
Here are possible causes: 1. Fuse blown. 2. Loose wiring connector. 3. Power switch failure. 4. Motor malfunction. 5. Water ingress causing short circuit and motor burnout. 6. Motor overload operation leading to commutator short circuit and burnout. Here are the solutions: 1. Replace blown fuse. 2. Replace faulty power switch. Testing method: Turn on power switch, measure resistance between input and output terminals with multimeter ohmmeter - zero resistance indicates normal, infinite resistance indicates switch failure. 3. Accelerator failure. Measure accelerator output voltage with DC voltmeter - voltage presence indicates normal operation, absence indicates accelerator failure requiring replacement. 4. Controller failure requiring replacement. Measure controller output voltage with multimeter - presence indicates good condition, absence indicates failure. 5. Motor burnout requiring motor replacement.