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Battery UN38.3
Release Date :2021-12-04 19:18:20    Clicks : bout

Certification Introduction

UN38.3 certification is the UN Recommendations, Tests and Standards Manual on the Transport of Dangerous Goods, Chapter 38.3. UN38.3 In order to ensure the safety of air transportation and meet customers’ requirements for the transportation of goods containing lithium batteries, in accordance with the relevant provisions of the International Air Transport Association "Dangerous Goods Regulations", the operating specifications for rechargeable lithium batteries, namely UN38.3 (UNDOT ) Test.

According to the requirements of civil aviation regulations, airlines and airport cargo collection and transportation departments should review the transportation documents of lithium batteries. The most important thing is the safety inspection report of each type of lithium battery UN38.3. The report can be provided by a third-party testing agency designated by civil aviation (such as Depuhua Testing), or by a battery manufacturer with testing capabilities. If this test report cannot be provided, civil aviation will prohibit air transportation of lithium batteries.


UN38.3 refers to paragraph 38.3 of Part 3 of the "United Nations Dangerous Goods Transport Test and Standard Manual" specially formulated by the United Nations for the transportation of dangerous goods. It requires that lithium batteries must pass high simulation, high and low temperature cycles, and vibration tests before transportation. , Impact test, 55℃ external short circuit, impact test, overcharge test, forced discharge test, can ensure the safety of lithium battery transportation. If the lithium battery and the device are not installed together, they must pass the 1.2-meter free drop test UN38.3 certification mark

       电池UN38.3(图1)

UN38.3 certified product range

1. Various power lithium secondary batteries (such as batteries for power vehicles, batteries for electric road vehicles, batteries for electric tools, batteries for hybrid vehicles, etc.)

2. Various mobile phone batteries (such as lithium ion batteries, lithium polymer batteries, etc.)

3. Various small secondary batteries (such as laptop batteries, digital camera batteries, camcorder batteries, various cylindrical batteries, wireless communication batteries, portable DVD batteries, CD and MP3 player batteries, etc.)

4. Various primary batteries (such as lithium manganese batteries, etc.)

UN38.3 test items

T1, height simulation test

T2, thermal test

T3, vibration test

T4, impact test

T5, external short circuit test

T6, collision test

T7, overcharge test

T8, forced discharge test

Determining the test qualification standard

a. T.1-T.4 No mass loss, no leakage, no exhaust, no disassembly, no rupture, no fire, and the open circuit voltage is not less than 90% of the value before the test

b. The surface temperature of T.5-T.6 does not exceed 170℃, and there is no disintegration, cracking, or fire within 6 hours of the test.

c, T.7-T.8 test within 7 days without disintegration, no fire

Restrictions on packaging requirements and conditions

Lithium batteries and lithium battery packs delivered can be transported as non-restricted items (non-dangerous goods) if they meet all the following conditions. If any of the following conditions cannot be met, it shall be operated in accordance with UN3090 or UN3091 dangerous goods collection and transportation requirements:


(1) Restrictions on lithium content1. For metal lithium or lithium alloy primary batteries, the lithium content shall not exceed 1g; for lithium ion primary batteries, the rated watt-hour shall not exceed 20Wh.       Note: The primary battery is also called the battery cell.

2. For metal lithium or lithium alloy batteries, the total lithium content does not exceed 2g, and for lithium ion batteries, the rated watt-hour does not exceed 100Wh.

Note: The above-mentioned "lithium content" refers to the amount of metallic lithium on the anode of a lithium metal or lithium alloy battery.

For metal lithium or lithium alloy primary cells or batteries, the calculation method of "Lithium Equivalent Content" in grams is 0.3 times the ampere hour of the rated capacity. For example: the rated capacity of a mobile phone lithium-ion battery is 800mah (800 milliampere hours), and its "lithium equivalent content" is: 0.3 X 0.8 (ampere hour) = 0.24 grams.

(2) Meet UN test requirements       Each type of primary cell and battery has been tested to prove that it meets all the requirements of Section 3, Section 38.3 of the "United Nations Manual of Transport Tests and Standards for Dangerous Goods". (3) Packaging requirements


1. Unless installed in equipment (such as in mobile phones, cameras, walkie-talkies, laptops, etc.), batteries and primary batteries must be packaged separately to prevent short circuits and packed in strong outer packaging. 2. Unless installed in equipment, if each package contains more than 24 primary batteries or 12 batteries, the following requirements must also be met: a. Each package must be marked to indicate the special measures that should be taken when the lithium battery is contained and the package is damaged. b. Each shipment must have a random document to explain the lithium battery in the package and the special measures to be taken when the package is damaged.

c. Each package must be able to withstand a 1.2m drop test in any orientation, without damaging the battery or cell in the package, and without changing the position of the battery or the battery and the battery (or the primary battery and the primary battery). Contact, no battery leaking from the package. d. If the battery is transported separately, the gross weight of each package shall not exceed 10kg.


UN38.3 test version revised to the 6th edition

The Rev.6 version of Clause 38.3 (UN38.3) of Part 3 of the "United Nations Manual of Tests and Standards for the Transport of Dangerous Goods" has been released, which will replace the current Rev.5 version, which has greater testing requirements for lithium batteries The main changes are as follows:

Change 1: In section 38.3.4.5.2, the ambient temperature requirements for T5 test items are changed.


电池UN38.3(图2)

Change 2: In chapter 38.3.4.4.2, the peak acceleration value of acceleration shock is modified. If a small battery exceeds 4.48Kg, the peak acceleration will be less than 150gn, and if a large battery exceeds 12Kg, the peak acceleration will be less than 50gn.

电池UN38.3(图3)

Note: In section 38.3.4.2.2, the high temperature storage temperature value of test item T2 has been changed from 75 ± 2 °C back to 72 ± 2 °C. For more information, please contact SJS Testing



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