I. Definition and Implementing Agencies

UN38.3It is the "Manual on Tests and Standards" by the United Nations.38.3Section Abbreviation, established by the United Nations Sub-Committee of Experts on the Transport of Dangerous Goods, for specifying the safety testing requirements for lithium batteries in aviation, maritime, and land transport.‌The standard has been since2003Yearly enforcement, the new version is the 7th revised edition correction1‌。

II. Certification Purpose
Transport Security Assurance‌Simulating extreme transportation conditions (such as high and low temperatures, vibration, and impact), to ensure that lithium batteries do not leak, ignite, or explode during transit.‌。
International regulatory compliance‌Meets the International Air Transport Association (IATA)IATAIATA（International Air Transport Association）、ICAO（International Civil Aviation Organization）ICAORegulatory requirements for air transportation in various countries‌。
Risk Prevention and Control‌Reduce transportation accidents caused by battery defects, safeguard personnel and property safety‌。

III. Applicability Scope
Covering the following battery types:
Lithium Metal Battery‌Including button cells, power batteries, etc.‌。
Lithium-ion Battery‌Battery for devices such as mobile phones, laptops, drones, etc.‌。
Special Purpose Batteries‌Power batteries for vehicles, energy storage batteries, and medical device配套batteries‌。

IV. Core Testing Items
UN38.3A total of8Item mandatory test:
T1High-fidelity simulation tests‌Please provide the Chinese content to be translated.11.6kPaLow-pressure and20±5℃Continuous in environment6Hour, verify battery sealing and structural stability‌。
T2Temperature cycling test‌Please provide the Chinese content to be translated.-40℃Please provide the Chinese content that needs to be translated into American English.72℃Between10This cycle, test the battery's tolerance to extreme temperature variations.‌。
T3Vibration Test‌Simulated transportation roughness, through7Hz-200HzLog-scan frequency vibration, continuous3Hour‌。
T4Impact Test‌Apply150g/6msOr50g/11msHalf-sine impulse, testing the battery's resistance to mechanical impact‌。
T5External short-circuit test‌: At55±2℃Short-circuit batteries under environmental conditions until temperature stabilizes1Hourly, ensure no thermal runaway‌。
T6Impact/Compressive Test‌: Through9.1kgHeavy goods61cmDrop Impact, Evaluate Battery's Resistance to Physical Damage‌。
T7Overcharge Test‌Please provide the Chinese content that needs to be translated into American English.2Highly increased charging current and voltage retention24Hour, tested overcharge protection mechanism‌。
T8Forced Discharge Test‌Series12VForced discharge of power, to verify the battery's safety protection function‌。

V. Certification Process
Application and Submission of Documents‌Please fill out the application form and provide the battery specifications, samples (with voltage, capacity, and watt-hour value marked).‌。
Lab Testing‌ByCNASThe recognized lab has completed all tests and issued the report.‌。
Review and Certification‌Issued upon approvalUN38.3Test Report and Shipment Survey Certificate‌。
Packaging and Shipping‌Meets packaging requirements (such as anti-short-circuit design,1.2Milling drop test completed; shipping permitted.‌。

Section 6: Required Materials
Application Form (including model, voltage, capacity, etc. parameters)‌。
Battery specification sheet and samples (consistent with the shipping product)‌。
Transport Packaging Design Documents (if to be shipped separately)‌。

Section 7: Cautionary Notes
Packaging Requirements‌：
Batteries without installed equipment must be packaged separately to prevent short circuits, and the outer packaging must pass1.2Millet Drop Test‌。
Over24Individual cell12Each battery packaging must include warning information and provide random documents.‌。
File integrity‌Lack of test reports or certificates will result in air freight refusal.‌。
Standard Update‌Please regularly check for revised editions of the "Manual of Tests and Standards" to avoid using outdated standards.‌。

ThroughUN38.3Certified lithium batteries are eligible for air transportation authorization and significantly reduce international trade barriers.‌。