New version of YD/T 2344.1-2023,
YD/T 2344.1-2023,

▍What is CTIA CERTIFICATION?

CTIA, the abbreviation of Cellular Telecommunications and Internet Association, is a non-profit civic organization established in 1984 for the purpose of guaranteeing benefit of operators, manufacturers and users. CTIA consists of all U.S. operators and manufacturers from mobile radio services, as well as from wireless data services and products. Supported by FCC (Federal Communications Commission) and Congress, CTIA performs a large part of duties and functions that were used to be conducted by the government. In 1991, CTIA created an unbiased, independent and centralized product evaluation and certification system for wireless industry. Under the system, all wireless products in consumer grade shall take compliance tests and those complying with the relevant standards will be granted to utilize CTIA marking and hit store shelves of North American communication market.

CATL (CTIA Authorized Testing Laboratory) represents labs accredited by CTIA for testing and review. Testing reports issued from CATL would be all approved by CTIA. While other testing reports and results from non-CATL will not be recognized or have no access to CTIA. CATL accredited by CTIA varies in industries and certifications. Only CATL which is qualified for battery compliance test and inspection has access to battery certification for compliance to  IEEE1725.

▍CTIA Battery Testing Standards

a) Certification Requirement for Battery system Compliance to IEEE1725— Applicable to Battery Systems with single cell or multiple cells connected in parallel;

b) Certification Requirement for Battery system Compliance to IEEE1625— Applicable to Battery Systems with multiple cells connected in parallel or in both parallel and series;

Warm tips: Select above certification standards properly for batteries used in mobile phones and computers. Do not misuse IEE1725 for batteries in mobile phones or IEEE1625 for batteries in computers.

▍Why MCM？

● Hard Technology: Since 2014, MCM has been attending battery pack conference held by CTIA in US annually, and is able to obtain latest update and understand new policy trends about CTIA in a more prompt, accurate and active way. 

●Qualification: MCM is CATL accredited by CTIA and is qualified to perform all processes related to certification including testing, factory audit and report uploading.

YD/T 2344.1-2023 “Lithium iron phosphate battery pack for communications Part 1: Integrated battery pack” was released at the end of December 2023 and has been implemented on April 1, 2024. With the development of integrated lithium iron phosphate battery pack technology, there are more and more integrated lithium iron phosphate battery pack products, and their application scenarios are becoming more and more extensive. The capacity level is not limited to 100Ah and below. Now there are 150 Ah and 200 Ah products. The original standards can no longer cover such products. Therefore, the new version of the YD/T 2344.1-2023 standard has revised the terminology requirements, battery and battery pack test methods.
This time the editor will bring you a comparison of the key changes between the old and new standards of YD/T 2344.1
New：
This document applies to the integrated lithium iron phosphate battery pack used in 48V DC power supply system (composed of 16 3.2V batteries connected in series, hereinafter referred as the battery pack).
If the number of series connections is 15 or other situations, you can refer to the actual situation.
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2.GB/T 17626.5-2019 Electromagnetic compatibility Testing and measurement technology Surge (impact) Immunity test.
3.GB/T 20626.1-2017 Special environmental conditions Plateau electrical and electronic products Part 1: General technical requirements.
4.YD/T 983-2018 Electromagnetic compatibility limits and measurement methods of communication power supply equipment.