The technical difference between JIS C 62133-2 and IEC 62133-2,
Iec 62133,

▍Certification Overview

Standards and Certification Document

Test standard: GB31241-2014: Lithium ion cells and batteries used in portable electronic equipment―Safety requirements
Certification document: CQC11-464112-2015: Secondary Battery and Battery Pack Safety Certification Rules for Portable Electronic Devices

Background and Date of implementation

1. GB31241-2014 was published on December 5^th, 2014;

2. GB31241-2014 was mandatorily implemented on August 1^st, 2015. ;

3. On October 15th, 2015, Certification and Accreditation Administration issued a technical resolution on additional testing standard GB31241 for key component “battery” of the audio and video equipment, information technology equipment and telecom terminal equipment. The resolution stipulates that the lithium batteries used in the above products need to be randomly tested as per GB31241-2014, or obtain a separate certification. 

Note: GB 31241-2014 is a national compulsory standard. All the lithium battery products sold in China shall conform to GB31241 standard. This standard will be used in new sampling schemes for national, provincial and local random inspection.

▍Scope of Certification

GB31241-2014 Lithium ion cells and batteries used in portable electronic equipment―Safety requirements
Certification documents is mainly for mobile electronic products that are scheduled to be less than 18kg and can be often carried by users. The main examples are as follows. The portable electronic products listed below do not include all products, so products not listed are not necessarily outside the scope of this standard.

Wearable equipment: Lithium-ion batteries and battery packs used in equipment need to meet standard requirements.

▍Why MCM?

● Qualification recognition: MCM is a CQC accredited contract laboratory and a CESI accredited laboratory. The test report issued can be directly applied for CQC or CESI certificate;

● Technical support: MCM has ample GB31241 testing equipment and is equipped with more than 10 professional technicians to conduct in-depth research on testing technology, certification, factory audit and other processes, which can provide more accurate and customized GB 31241 certification services for global clients.

From the JIS standard website, we noticed that JIS C 62133-2 “Safety requirements for portable sealed secondary cells, and for batteries made from them, for use in portable applications-Part 2: Lithium systems” was released on Dec. 21st 2020. This standard was established according to not only IEC 62133-2 2017, but also the Attached 9-Lithium Battery in the Electrical Appliance and Material Safety Law“DENAN”,especially the testing items which are mainly from the content of DENAN Attached 9.
From July 29, 2019, CPSC began to work closely with the U.S. Customs and Border Protection (CBP) to identify and inspect imported consumer goods shipments (For products defined by certain HTS codes listed below, such as children’s toys, batteries), and participated in One U.S. Government Notification Messaging at Import (1 USG NM), in order to better assist the customs in reviewing compliant products, CPSC updates its coordination process every year. On March 22 this year, it has adjusted its review time and conditions in its updated review plan which allows for faster review by CPSC of low‐risk shipments at the port, however the premise is that the applicant must provide the estimated time of arrival EDA in advance and the entry records like CPSC compliance or non-compliance record data in advance (≥3 days) of EDA.