What is UN38.3 and why does the ETENWOLF Air3 need it?

UN38.3 is the transport safety standard under the UN Recommendations on the Transport of Dangerous Goods that all lithium batteries must pass before they can be shipped commercially. The ETENWOLF Air3 contains a 3.7V / 1300mAh lithium-ion battery pack, so this certification is required by airlines, freight carriers, and customs authorities worldwide to permit the product to be transported safely.

Which test report number corresponds to the Air3 battery pack?

The UN38.3 test report for the Air3 lithium-ion battery pack (model 1S1P-1300, cell model 953737) is WTH25D05129163B, issued by Waltek Testing Group Co., Ltd. on 2025-06-05.

Did the Air3 battery pass all UN38.3 tests?

Yes. All applicable test items — including altitude simulation, thermal cycling, vibration, shock, external short circuit, crush, overcharge, and forced discharge — received a Pass verdict. The report confirms full compliance with ST/SG/AC.10/11/Rev.8 Section 38.3.

How does the Air3 battery pack's energy rating affect shipping classification?

At 4.81 Wh per cell, the Air3 battery pack is well below the 20 Wh per-cell threshold defined in UN38.3. This means it qualifies for Section II shipping provisions when packed with or contained in equipment, which simplifies documentation requirements for air and ocean freight.

UN38.3 Test Report for ETENWOLF Air3 Lithium-ion Battery Pack (WTH25D05129163B)

Document Overview

Document Overview This page presents the official UN38.3 Test Report issued for the lithium-ion battery pack used in the ETENWOLF Air3 portable inflator. UN38.3 is the internationally recognised transportation safety standard for lithium batteries, defined under the UN Recommendations on the Transport of Dangerous Goods…

Document type: Certification Report
Prepared by: Michelle Torres
Published: July 22, 2026
Last reviewed: July 22, 2026
Topics: International Transportation: CB / MSDS / UN38.3

Document Overview

This page presents the official UN38.3 Test Report issued for the lithium-ion battery pack used in the ETENWOLF Air3 portable inflator. UN38.3 is the internationally recognised transportation safety standard for lithium batteries, defined under the UN Recommendations on the Transport of Dangerous Goods – Manual of Tests and Criteria.

Report Number: WTH25D05129163B
Document Type: UN38.3 Test Report
Issuing Body: Waltek Testing Group Co., Ltd. (Shenzhen / Dongguan, China)
Test Specification: ST/SG/AC.10/11/Rev.8 – Section 38.3, Eighth Revised Edition (Amendment)
Date of Sample Receipt: 2025-05-22
Testing Period: 2025-05-22 to 2025-05-30
Date of Issue: 2025-06-05
Overall Test Result: PASS — The submitted samples comply with the above standards.

The report was prepared by Waltek Testing Group Co., Ltd., located at No. 77, Houjie Section, Guantai Rd., Houjie Town, Dongguan City, Guangdong, China. The document spans 16 pages under internal form reference WT-510-201-02-B.

Product Information

The battery pack evaluated in this report is the internal power cell for the ETENWOLF Air3 cordless inflator. Full product details as documented in the test report are listed below.

Field	Detail
Product Name	Lithium-ion Battery Pack
Model Number	1S1P-1300
Cell Model	953737
Classification	Prismatic Lithium-ion Battery Pack
Trade Mark	N/A
Rated Voltage	3.7 V
Rated Capacity	1300 mAh
Energy	4.81 Wh
Cell Count & Configuration	1 cell, 1S1P
Cell Rated Capacity	1300 mAh
Dimensions	37.0 mm × 37.0 mm × 19.0 mm
Mass	Approx. 33.7 g
Standard Charge Current	Type-C: 5 V / 1.3 A
Max. Charge Voltage	Type-C: 5 V / 1.3 A
Max. Charge Current	Type-C: 5 V / 1.3 A
Standard Discharge Current	1300 mA
Max. Discharge Current	6500 mA
Discharge Cut-off Voltage	3.0 V

The applicant and manufacturer is Guangdong Bestek Technology Co., Ltd., located at No. 1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China.

Key Details

UN38.3 requires lithium batteries to pass a series of eight individual abuse and environmental tests before they are approved for air, sea, and ground transportation. The table below summarises the test items covered under this report and their verdict conventions as defined in the document.

Test Item	UN38.3 Sub-section	Description	Result
T.1 – Altitude Simulation	38.3.4.1	Simulates low-pressure conditions during air transport (11.6 kPa, 6 hours)	Pass
T.2 – Thermal Test	38.3.4.2	Rapid temperature cycling between +75 °C and −40 °C	Pass
T.3 – Vibration	38.3.4.3	Sinusoidal vibration across 7–200 Hz frequency range	Pass
T.4 – Shock	38.3.4.4	Half-sine shock pulses at 150 gn peak acceleration	Pass
T.5 – External Short Circuit	38.3.4.5	Short circuit at ambient and elevated temperature	Pass
T.6 – Impact / Crush	38.3.4.6	Mechanical impact or crush depending on cell form factor (prismatic: crush)	Pass
T.7 – Overcharge	38.3.4.7	Charge at twice the maximum rated current for 24 hours	Pass
T.8 – Forced Discharge	38.3.4.8	Forced discharge by connecting cells in series with a 12 V source	Pass

Verdict key used in the report: P (Pass) — test object meets the requirement; F (Fail) — test object does not meet the requirement; N/A — test case does not apply to the test object.

All eight applicable test items received a Pass verdict, confirming that the 1S1P-1300 battery pack is compliant for transport classification purposes.

Standards & Compliance

The ETENWOLF Air3 battery pack was evaluated against the following normative reference:

ST/SG/AC.10/11/Rev.8 Section 38.3 — UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Eighth Revised Edition (Amendment)

UN38.3 compliance is mandatory for the international shipment of lithium batteries and cells by all transport modes. The standard is referenced by:

IATA Dangerous Goods Regulations (DGR) for air freight
IMDG Code for sea freight
ADR/RID for road and rail transport in Europe

A prismatic single-cell battery pack of 4.81 Wh falls below the 20 Wh per-cell threshold, which allows it to ship under Section II provisions when packed with or contained in equipment. This report provides the documentation required by carriers and customs authorities to verify that the battery has been properly tested prior to shipment.

Validity & Certification Body

The test report WTH25D05129163B was issued on 2025-06-05 by Waltek Testing Group Co., Ltd. (深圳沃特检验集团股份有限公司), one of China’s leading independent third-party testing laboratories.

Field	Detail
Report Number	WTH25D05129163B
Issue Date	2025-06-05
Testing Laboratory	Waltek Testing Group Co., Ltd.
Lab Address	No. 77, Houjie Section, Guantai Rd., Houjie Town, Dongguan City, Guangdong, China
Lab Website	http://www.waltek.com.cn
Lab Tel	+86-769-2267 6998
Lab Fax	+86-769-2267 6828
Lab Email	[email protected]
Tested By	Jacky Sun (孙纤)
Reviewed By	Jack Chen (陈咏松)
Approved By	Deval Qin (秦林伟)
Internal Form Ref.	WT-510-201-02-B

UN38.3 test reports do not carry a fixed expiry date under the standard itself; however, the report is linked to the specific cell model (953737) and configuration (1S1P) tested. Any change in cell chemistry, configuration, or safety circuitry requires re-testing. Carriers and regulatory bodies may impose their own validity windows, typically 12–36 months from the date of issue.

Frequently Asked Questions

What is UN38.3 and why does the ETENWOLF Air3 need it?: UN38.3 is the transport safety standard under the UN Recommendations on the Transport of Dangerous Goods that all lithium batteries must pass before they can be shipped commercially. The ETENWOLF Air3 contains a 3.7 V / 1300 mAh lithium-ion battery pack, so this certification is required by airlines, freight carriers, and customs authorities worldwide to permit the product to be transported safely.
Which test report number corresponds to the Air3 battery pack?: The UN38.3 test report for the Air3 lithium-ion battery pack (model 1S1P-1300, cell model 953737) is WTH25D05129163B, issued by Waltek Testing Group Co., Ltd. on 2025-06-05.
Did the Air3 battery pass all UN38.3 tests?: Yes. All applicable test items — including altitude simulation, thermal cycling, vibration, shock, external short circuit, crush, overcharge, and forced discharge — received a Pass verdict. The report confirms full compliance with ST/SG/AC.10/11/Rev.8 Section 38.3.
How does the Air3 battery pack’s energy rating affect shipping classification?: At 4.81 Wh per cell, the Air3 battery pack is well below the 20 Wh per-cell threshold defined in UN38.3. This means it qualifies for Section II shipping provisions when packed with or contained in equipment, which simplifies documentation requirements for air and ocean freight.