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Battery UN38.3

Battery UN 38.3 Test

UN38.3 new version (Rev.5) content introduction

United Nations (Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria)

UN38.3 isRecommendations on the Transport of Dangerous Goods: Manual of Tests and CriteriaPart 3, section 38.3. To ensure air transport safetyand to meet the transportation demand of customers for lithium battery cargoaccording to The international air transport associationDangerous goods regulations》,formulate the operation specification of rechargeable lithium batteryformulate the operation specification of rechargeable lithium battery, it is UN38.3 test.

38.3 Lithium batteries

38.3.1 Purpose

This section presents the procedures to be followed for the classification of lithium cells and batteries (see UN Nos. 3090 and 3091, and the applicable special provisions of Chapter 3.3 of the Model Regulations).

38.3.2 Scope

38.3.2.1 Lithium cells and batteries shall be subjected to the tests, as required by special

provisions 188 and 230 of Chapter 3.3 of the Model Regulations prior to the transport of a particular cell or battery type. Lithium cells or batteries which differ from a tested type by:

(a) a change of more than 0.1 g or 20% by mass, whichever is greater, to the cathode, to

the anode, or to the electrolyte; or

(b) a change that would materially affect the test results,

shall be considered a new type and shall be subjected to the required tests. In the event that a lithium cell or battery type does not meet one or more of the test requirements, steps shall be taken to correct the deficiency or deficiencies that caused the failure before such cell or battery type is retested.

38.3.3 When a cell or battery type is to be tested under this sub-section, the number and condition of cells and batteries of each type to be tested are as follows:

(a) When testing primary cells and batteries under tests 1 to 5 the following shall be

tested:

(i) ten cells in undischarged states,

(ii) ten cells in fully discharged states,

(iii) four batteries in undischarged states, and

(iv) four batteries in fully discharged states.

(b) When testing rechargeable cells and batteries under tests 1 to 5 the following shall be

tested:

(i) ten cells, at first cycle, in fully charged states,

(ii) ten cells, at first cycle, in fully discharged states,

(iii) four batteries, at first cycle, in fully charged states,

(iv) four batteries, at first cycle, in fully discharged states,

(v) four batteries after fifty cycles ending in fully charged states, and

(vi) four batteries after fifty cycles ending in fully discharged states.

(c) When testing primary and rechargeable cells under test 6, the following shall be

tested:

(i) for primary cells, five cells in undischarged states and five cells in fully discharged states,

(ii) for component cells of primary batteries, five cells in undischarged states and five cells in fully discharged states,

(iii) for rechargeable cells, five cells at first cycle at 50% of the design rated capacity and five cells after 50 cycles ending in fully discharged states, and

(iv) for component cells of rechargeable batteries, five cells at first cycle at 50% of the design rated capacity and five cells after 50 cycles ending in fully discharged states.

For prismatic cells, ten test cells are required for each of the states of charge being

tested, instead of the five described above, so that the procedure can be carried out on

five cells along the longitudinal axes and, separately, five cells along the other axes.

In every case, the test cell is only subjected to one impact.

(d) When testing rechargeable batteries under test 7, the following shall be tested:

(i) four rechargeable batteries, at first cycle, in fully charged states, and

(ii) four rechargeable batteries after fifty cycles ending in fully charged states.

(e) When testing primary and rechargeable cells under test 8, the following shall be

tested:

(i) ten primary cells in fully discharged states,

(ii) ten rechargeable cells, at first cycle in fully discharged states, and

(iii) ten rechargeable cells after fifty cycles ending in fully discharged states.

38.3.4 Procedure (Test Item)

38.3.4.1 Test T.1: Altitude simulation

38.3.4.2 Test T.2: Thermal test

38.3.4.3 Test T.3: Vibration

38.3.4.4 Test T.4: Shock

38.3.4.5 Test T.5: External short circuit

38.3.4.6 Test T.6: Impact

38.3.4.7 Test T.7: Overcharge

38.3.4.8 Test T.8: Forced discharge

What documents it need to apply for UN38.3?

1. Test samples according to the requirements

2. Cell specification, Battery specification

3. Application

4. Letter of authorization

5. Transport declaration and accompanying documents

6. ISO9000 certificate of the battery manufacturer

7. Package pictures


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