Which component stops charging when the battery overheats?

Which component stops charging when the battery overheats?

• A. Main and Emergency Battery
• B. Battery Thermal Switch
• C. Level 3 Anti icing
• D. Probes and sensors (Permanent)

Answer: (B)

Battery thermal protection cuts off charging when temperature rises to a dangerous level. The device that does this is the Battery Thermal Switch. It sits in the charging path and is activated by the battery’s temperature. When overheating is detected, the switch opens the circuit, stopping charging to prevent further heat buildup and reduce the risk of damage or fire. It will typically reset or allow charging again once the battery has cooled to a safe temperature. The other options don’t provide this automatic protection: the main and emergency batteries are power sources, not protective controls; Level 3 anti-icing isn’t related to charging; probes and sensors monitor temperature but don’t by themselves interrupt charging without the switch in place.

Battery thermal protection cuts off charging when temperature rises to a dangerous level. The device that does this is the Battery Thermal Switch. It sits in the charging path and is activated by the battery’s temperature. When overheating is detected, the switch opens the circuit, stopping charging to prevent further heat buildup and reduce the risk of damage or fire. It will typically reset or allow charging again once the battery has cooled to a safe temperature. The other options don’t provide this automatic protection: the main and emergency batteries are power sources, not protective controls; Level 3 anti-icing isn’t related to charging; probes and sensors monitor temperature but don’t by themselves interrupt charging without the switch in place.