According to the International Air Transport Association (IATA) Dangerous Goods Regulations (DGR) 67th edition, effective January 1, 2026, a series of transportation requirements regarding the State of Charge (SoC) for lithium-ion battery shipments have been established. The specific details are summarized as follows:
1. Packaging Instructions PI966 (UN3481, lithium-ion batteries packed with equipment)
This type of cargo refers to products where the battery is packaged separately from the main device but transported in the same package, such as electric drills, robotic vacuum cleaners, etc.
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Part I: The battery’s State of Charge during transport must not exceed 30% of its rated capacity. If it exceeds this limit, approval from the country of origin and the airline’s country is required.
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Part II:
(1) For batteries exceeding 2.7Wh, the SoC must not exceed 30%, and exceeding this requires approval;
(2) For batteries not exceeding 2.7Wh, it is recommended that the SoC not exceed 30%, and exceeding this can be done without approval.
2. Packaging Instructions PI967 (UN3481, lithium-ion batteries installed in equipment)
Applicable to devices with built-in batteries, such as mobile phones and tablets. Effective January 1, 2026:
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It is recommended that the SoC not exceed 30%, or that the device displays a battery level not exceeding 25%.
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This recommendation applies to both Part I and Part II and is not mandatory.
3. Packaging Instructions PI952 (UN3556, vehicles powered by lithium-ion batteries)
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When the battery exceeds 100Wh: the SoC must not exceed 30% or the display must not exceed 25%, which is a mandatory requirement;
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When the battery does not exceed 100Wh: it is recommended that the SoC not exceed 30% or the display not exceed 25%, which is a recommended measure;
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If the battery exceeds 100Wh and the SoC > 30% (or display > 25%), approval is required for transportation.
UN Number and Description
Packaging Instructions (PI)
Applicable Parts / Battery Type
State of Charge (SoC) Requirements
Nature and Remarks
UN3480lithium-ion batteries
PI965
Part IA / IB
SoC ≤ 30%
(Mandatory)
UN3481lithium-ion batteries packed with equipment
PI966
Part I
SoC ≤ 30%
(Mandatory) exceeding requires approval
Part IIbatteries > 2.7 Wh
SoC ≤ 30%
(Mandatory) exceeding requires approval
Part IIbatteries ≤ 2.7 Wh
SoC ≤ 30%
(Recommended) exceeding can be transported normally
UN3481lithium-ion batteries installed in equipment
PI967
Part I / II
SoC ≤ 30% or device display ≤ 25%
(Recommended) effective from 2026
UN3556vehicles powered by lithium-ion batteries
PI969
batteries > 100 Wh
SoC ≤ 30% or display ≤ 25%
(Mandatory) exceeding requires approval
batteries ≤ 100 Wh
SoC ≤ 30% or display ≤ 25%
(Recommended)
Currently, no national civil aviation authority or airline has proposed stricter differential requirements than the above IATA DGR 67th edition standards. However, some airlines, such as Korean Air, Asiana Airlines, and Starlux Airlines, require that the operation instructions in the Dangerous Goods Declaration (DGD) state “State of Charge not exceeding 30%, or display not exceeding 25%.”