GB 4943.1 Battery Test Methods
GB 4943.1 Battery Test Methods,
GB 4943.1 Battery Test Methods,
▍Vietnam MIC Certification
Circular 42/2016/TT-BTTTT stipulated that batteries installed in mobile phones, tablets and notebooks are not allowed to be exported to Vietnam unless they are subjected to DoC certifctaion since Oct.1,2016. DoC will also be required to provide when applying Type Approval for end products (mobile phones, tablets and notebooks).
MIC released new Circular 04/2018/TT-BTTTT in May,2018 which stipulates that no more IEC 62133:2012 report issued by overseas accredited laboratory is accepted in July 1, 2018. Local test is necessity while applying for ADoC certificate.
▍Testing Standard
QCVN101：2016/BTTTT（refer to IEC 62133：2012)
▍PQIR
The Vietnamese government issued a new decree No. 74/2018 / ND-CP on May 15, 2018 to stipulate that two types of products imported into Vietnam are subject to PQIR (Product Quality Inspection Registration) application when being imported to Vietnam.
Based on this law, the Ministry of Information and Communication (MIC) of Vietnam issued the official document 2305/BTTTT-CVT on July 1, 2018, stipulating that the products under its control (including batteries) must be applied for PQIR when being imported into Vietnam. SDoC shall be submitted to complete the customs clearance process. The official date of entry into force of this regulation is August 10, 2018. PQIR is applicable to a single import to Vietnam, that is, every time an importer imports goods, he shall apply for PQIR (batch inspection) + SDoC.
However, for importers who are urgent to import goods without SDOC, VNTA will temporarily verify PQIR and facilitate customs clearance. But importers need to submit SDoC to VNTA to complete the entire customs clearance process within 15 working days after customs clearance. (VNTA will no longer issue the previous ADOC which is only applicable to Vietnam Local Manufacturers)
▍Why MCM?
● Sharer of Latest Information
● Co-founder of Quacert battery testing laboratory
MCM thus becomes the sole agent of this lab in Mainland China, Hong Kong, Macau and Taiwan.
● One-stop Agency Service
MCM, an ideal one-stop agency, provides testing, certification and agent service for clients.
In the previous journals, we’ve mentioned some of devices and components testing requirements in GB 4943.1-2022. With the increasing use of battery-powered electronic devices, the new version of GB 4943.1-2022 adds new requirements based on 4.3.8 of the old version standard, and the relevant requirements are put into Appendix M. The new version has more comprehensive consideration on devices with batteries and protection circuits. Based on the evaluation of battery protection circuit, additional safety protection from devices are also required.1.Q: Do we need to conduct Annex M test of GB 4943.1 with compliance of GB 31241?
A: Yes. GB 31241 and GB 4943.1 Appendix M cannot replace each other. Both standards should be met. GB 31241 is for the battery safety performance, regardless of the situation on the device. Annex M of GB 4943.1 verifies the safety performance of batteries in devices.A: It is not recommended, because in general, M.3, M.4, and M.6 listed in Annex M need to be tested with a host. Only M.5 can be tested with battery separately. For M.3 and M.6 which require battery own a protection circuit and need to be tested under single fault, if the battery itself contains only one protection and no redundant components and the other protection is provided by the whole device, or the battery does not have its own protection circuit and the protection circuit is provided by the device, then it is the host to be tested.A: It is not recommended, because in general, M.3, M.4, and M.6 listed in Annex M need to be tested with a host. Only M.5 can be tested with battery separately. For M.3 and M.6 which require battery own a protection circuit and need to be tested under single fault, if the battery itself contains only one protection and no redundant components and the other protection is provided by the whole device, or the battery does not have its own protection circuit and the protection circuit is provided by the device, then it is the host to be tested.
