Safety Technical Specification for Power Bank GB 47372-2026

This national standard of the People's Republic of China, GB 47372-2026, specifies safety technical requirements for power banks with rated input voltage up to AC 220V or DC 250V. It covers test conditions, basic requirements, safety requirements for power banks and batteries, battery materials, production quality management, and transport safety. Key safety features include charging/discharging voltage and current control, temperature control, port short circuit protection, misoperation prevention, intelligent management, voltage regulation, and abnormal disable. Battery safety tests include overcharge, crush, thermal abuse, nail penetration, lithium plating, and thermal runaway. The standard also mandates requirements for cathode, anode, separator materials, and electrolyte. It provides normative annexes for communication methods, thermal runaway test procedures, determination of magnetic impurities, trace metal elements, separator puncture strength, thermal shrinkage, electrolyte moisture, and free acid content. This document aims to ensure the safety and reliability of power banks in the market.