New National Standard for Power Banks Is Here!

GB 4737-2026 Safety Technical Specification for Portable Power Banks Released

The mandatory national standard GB 4737-2026 Safety Technical Specification for Mobile Power Supplies, formulated under the organization of the Ministry of Industry and Information Technology (MIIT), was officially issued today (April 3).Building on two existing general mandatory national standards,this new specification clarifies a number of critical safety requirements.

Mobile power supplies covered by the standard include portable power banks and portable energy storage power stations.The specification strengthens the intrinsic safety of batteries by introducing a nail penetration test and raising safety performance requirements against high temperatures, overcharging,crushing,and similar stress scenarios.

To reduce internal short-circuit risks after prolonged use,the standard adds professional testing for cycle aging performance.It also requires a recommended safe service life to be clearly marked, reminding consumers to replace degraded or unsafe power banks in a timely manner.

In addition, the specification implements unique product identification coding, allowing consumers to verify core information such as battery brand via the code.For manufacturing,it sets clear controls for raw materials and production processes to improve product safety at the source.

A 12-month transition period applies.During this period,manufacturers may choose to comply with either the new standard or the original ones. After the transition,all production and sales must fully conform to the new standard.

According to experts, existing power banks certified under the old 3C https://www.huak-cer.com/certifications/ccc-certification-china/ scheme that were purchased by consumers before the new standard takes effect may still be carried on aircraft normally,provided they comply with current civil aviation regulations.