Where connections between dissimilar metals occur, antioxidant material must be used.

Code Q&A: Battery Termination Requirements

May 12, 2022

Test your knowledge of the NEC.

All questions and answers are based on the 2020 NEC.

Q. Does the NEC require an antioxidant for battery and cell terminations?

See answer below.

A. Where connections between dissimilar metals occur, antioxidant material must be used where recommended by the battery manufacturer (Figure).

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About the Author

Mike Holt

Mike Holt is the owner of Mike Holt Enterprises (www.MikeHolt.com), one of the largest electrical publishers in the United States. He earned a master's degree in the Business Administration Program (MBA) from the University of Miami. He earned his reputation as a National Electrical Code (NEC) expert by working his way up through the electrical trade. Formally a construction editor for two different trade publications, Mike started his career as an apprentice electrician and eventually became a master electrician, an electrical inspector, a contractor, and an educator. Mike has taught more than 1,000 classes on 30 different electrical-related subjects — ranging from alarm installations to exam preparation and voltage drop calculations. He continues to produce seminars, videos, books, and online training for the trade as well as contribute monthly Code content to EC&M magazine.