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Code Q&A: Storage Battery Accessibility Requirements

April 27, 2022

Test your knowledge of the NEC.

All questions and answers are based on the 2020 NEC.

Q. What is the Code rule regarding the accessibility of battery and cell terminations for storage batteries?

See answer below.

A. As per Sec. 480.4(D), the terminals of all cells or multicell units must be readily accessible for readings, inspections, and cleaning where required by the equipment design. One side of transparent battery containers must be readily accessible for inspection of the internal components.

These materials are provided to us by Mike Holt Enterprises in Leesburg, Fla. To view Code training materials offered by this company, visit www.mikeholt.com/code.

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.