Will the Battery Be Damaged if the Electric Vehicle's Chassis Is Hit?
2 Answers
Whether the battery will be damaged depends on the situation. Generally, there is no issue. Minor collisions won't cause damage, but severe impacts can harm the battery. Chassis Vibration Damping: The engine and wheels are fixed to the vehicle's chassis, and vibrations can resonate with the floor at certain frequencies, causing discomfort. The underbody protection helps mitigate some of this resonance. Undercarriage Protection: The thickness of the underbody plastic coating can reach 1.5-2.5mm. When the underbody is scraped by road bumps, this coating helps reduce the impact on the chassis. Vehicle Undercarriage Impact: Undercarriage impact refers to the chassis encountering road bumps like stones while driving. Such impacts create a collision force between the vehicle's underbody and the obstacle, potentially damaging the impacted area of the electric vehicle's chassis to some extent.
Last time I drove my electric car through a construction zone, I scraped the undercarriage and was so scared I checked everywhere. The battery pack is actually hidden in the middle of the undercarriage. If it gets hit by rocks or bottoms out, the external aluminum alloy guard plate could deform, putting pressure on the internal battery modules. The worst-case scenario is a deep dent, which could rupture the battery cooling pipes and cause coolant leakage. For minor scratches, just check the depth of the guard plate's scratches—if it's over 5mm, take it to a 4S shop for a lift inspection. I recommend installing a battery guard plate; a manganese steel plate costing around a hundred bucks can withstand general impacts, especially since replacing a battery module can cost 70,000 to 80,000 yuan. If you smell a sweet odor or the car's system alerts you to a battery fault after a collision, do not continue driving.
