{"data":{"id":"us/46-cfr-111.15-25","jurisdiction":"us","citation":"46 CFR 111.15-25","heading":"-25 Overload and reverse current protection.","body":"(a) An overload protective device must be in each battery conductor, except conductors of engine cranking batteries and batteries with a nominal potential of 6 volts or less. For large storage battery installations, the overcurrent protective devices must be next to, but outside of, the battery room.\n(b) Except when a converter is used, the charging equipment for all batteries with a nominal voltage more than 20 percent of line voltage must protect automatically against reversal of current.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER J—ELECTRICAL ENGINEERING","PART 111—ELECTRIC SYSTEMS—GENERAL REQUIREMENTS","Subpart 111.15—Storage Batteries and Battery Chargers: Construction and Installation"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"85eade37ae903dddea4d23e0537b8e58e70a709c7dee18a6b5dda5dc734fd0d1","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-111.15-20","next":"us/46-cfr-111.15-30"},"notice":"GroundRules: Original legal text. Not legal advice."}