UL 4200A certification for button batteries: A Compulsory course for

Button batteries have become common power supply components for various electronic consumer products due to their small size. However, manufacturers exporting to the United States must pay attention to a hard requirement - UL 4200A-2023 certification, which is a mandatory safety rule clearly defined by the U.S. Consumer Product Safety Commission (CPSC).

The core demand of this certification directly points to children's safety. Accidents involving children aged six and under swallowing button batteries by mistake are not uncommon, which may cause esophageal burns, organ damage and even death. The severe safety risks have driven the introduction of standards. UL 4200A-2023 takes precautions from the source, requiring manufacturers to consider child protection during the product design stage, such as adopting battery compartment structures that are difficult for children to open. At the same time, it has made clear regulations on the style and position of warning labels as well as the safety tips in the instruction manual, ensuring that the product meets protection requirements throughout its entire life cycle.

For manufacturers, passing a series of tests is the key to certification. Drop tests simulate the daily dropping scenarios of the product to verify whether the structure is stable. Impact tests are conducted for external impacts to ensure that the battery compartment does not open accidentally. Compression and compression resistance tests prevent the risk of battery detachment under external force. Torque tests and tensile tests are precisely targeted at the possible twisting and pulling actions of children, preventing the battery compartment from being easily opened. These tests are interlinked. Any failure to meet the standards in any link will hinder the certification from being passed.

UL 4200A-2023 certification is not a formal review but a "ticket" for products to enter the US market. Producers need to integrate standards into the entire process of research and development and production, strictly adhering to standards from design to testing, not only meeting regulatory requirements but also safeguarding the bottom line of children's safety.