What safety gear is essential when handling a vehicle's battery?

When handling a vehicle's battery, safety goggles are essential due to the potential hazards associated with battery maintenance and repair. Batteries, especially lead-acid types, can emit corrosive acid and are subject to explosive gases, such as hydrogen, during charging or discharging. If any of these substances were to splash or create a vapor, safety goggles would protect the eyes from chemical exposure or injury from flying debris.

While other options like a hard hat, face shield, and ear protection may have their place in different automotive work scenarios, they do not specifically address the immediate risks presented by batteries. Safety goggles directly protect the eyes, which is critical in preventing serious injury when working with batteries.