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← TechnologyWhich outcome occurs when regenerative braking overcharges an electric vehicle's power control system?
A)Reduced motor torque occurs initially
B)Battery thermal runaway risk rises✓
C)Drivetrain mechanical stress increases
D)Kinetic energy recapture improves
💡 Explanation
Battery thermal runaway risk rises because overvoltage causes increased internal resistance and subsequent heat via Joule heating; therefore, battery temperature accelerates out of control rather than the managed recharge alternative under designed voltages.
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