Which condition is an indication of improperly torqued cell link connections of a nickel-cadmium battery?

Which condition is an indication of improperly torqued cell link connections of a nickel-cadmium battery?

• A. Light spewing at the cell caps
• B. Toxic and corrosive deposits of potassium carbonate crystals
• C. Heat or burn marks on the hardware
• D. Cracking of the battery case

Answer: (C)

Improperly torqued cell link connections create a poor or uneven electrical contact, which raises resistance at the connection point. That extra resistance converts electrical energy into heat, causing localized overheating. The most direct and visible sign of this specific problem is heat or burn marks on the hardware around the connection, signaling that the connection is carrying excess current and may fail or cause a fire if not corrected. Other signs like venting at the cell caps, crystalline deposits from electrolyte, or cracking of the case point to different failure mechanisms (gas buildup, electrolyte issues, or mechanical damage) and aren’t as specific to torque problems.

Improperly torqued cell link connections create a poor or uneven electrical contact, which raises resistance at the connection point. That extra resistance converts electrical energy into heat, causing localized overheating. The most direct and visible sign of this specific problem is heat or burn marks on the hardware around the connection, signaling that the connection is carrying excess current and may fail or cause a fire if not corrected.

Other signs like venting at the cell caps, crystalline deposits from electrolyte, or cracking of the case point to different failure mechanisms (gas buildup, electrolyte issues, or mechanical damage) and aren’t as specific to torque problems.