What is UN38.3 and why does the ETENWOLF L1 battery need it?

UN38.3 is a set of transport safety tests defined in the UN Manual of Tests and Criteria that all lithium-ion and lithium metal batteries must pass before they can be shipped internationally. The ETENWOLF L1 battery pack requires this certification to comply with IATA, ICAO, and national dangerous goods regulations governing air freight and other modes of transport.

Which specific tests did the L1 battery pack undergo?

The 1S1P-1500 battery pack completed all eight UN38.3 sub-tests: T.1 Altitude Simulation, T.2 Thermal Test, T.3 Vibration, T.4 Shock, T.5 External Short Circuit, T.6 Impact/Crush, T.7 Overcharge, and T.8 Forced Discharge. All tests returned a Pass result, as recorded in report WTH25D05118921B.

Does the UN38.3 report expire?

The UN Recommendations do not specify a fixed expiry date for UN38.3 test reports. The report remains valid as long as the battery design remains unchanged. Any modification to cell chemistry, dimensions, or electrical ratings requires a new test report. Individual carriers may impose their own validity windows, typically two to three years.

Who issued the UN38.3 test report for the ETENWOLF L1?

The report (reference WTH25D05118921B) was issued by Waltek Testing Group Co., Ltd., an accredited third-party testing laboratory in Dongguan, Guangdong, China. It was tested by Jacky Sun, reviewed by Jack Chen, and approved by Deval Qin on 2025-05-23.

UN38.3 Test Report for ETENWOLF L1 Lithium-ion Battery Pack (WTH25D05118921B)

Document Overview

Document Overview This page presents the official UN38.3 Test Report issued for the ETENWOLF L1 lithium-ion battery pack. The report was prepared by Waltek Testing Group Co., Ltd. (深圳沃特检验集团股份有限公司), an accredited third-party testing laboratory headquartered in Dongguan, Guangdong, China. Field Detail Report Number WTH25D05118921B Document…

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 ETENWOLF L1 lithium-ion battery pack. The report was prepared by Waltek Testing Group Co., Ltd. (深圳沃特检验集团股份有限公司), an accredited third-party testing laboratory headquartered in Dongguan, Guangdong, China.

Field	Detail
Report Number	WTH25D05118921B
Document Type	UN38.3 Test Report
Issuing Body	Waltek Testing Group Co., Ltd.
Date of Issue	2025-05-23
Date of Sample Receipt	2025-05-14
Testing Period	2025-05-14 to 2025-05-23
Test Specification	UN Manual of Tests and Criteria, Eighth Revision, Section 38.3 (ST/SG/AC.10/11/Rev.8 38.3)
Overall Test Result	PASS — The submitted samples comply with the above standards

The scope of this report covers transport safety testing of the lithium-ion battery pack under the UN Recommendations on the Transport of Dangerous Goods — Manual of Tests and Criteria, ensuring the product is safe for international air, sea, and ground shipment.

Product Information

The tested product is a lithium-ion battery pack designed for use in the ETENWOLF L1 inflation tool and lighting gear. The battery pack is a single-cell prismatic configuration manufactured by Guangdong Bestek Technology Co., Ltd.

Parameter	Specification
Product Name	Lithium-ion Battery Pack
Model Number	1S1P-1500
Cell Model	XD 122050
Configuration	1 cell, 1S1P
Shape	Prismatic
Rated Voltage	3.8 V
Rated Capacity	1500 mAh
Energy	5.7 Wh
Standard Charge Current	Type-C: 5 V / 1.5 A
Maximum Charge Voltage	Type-C: 5 V / 1.5 A
Maximum Charge Current	Type-C: 5 V / 1.5 A
Standard Discharge Current	600 mA
Maximum Discharge Current	3000 mA
Discharge Cut-off Voltage	3.0 V
Dimensions	51.5 mm × 22.0 mm × 12.0 mm
Mass	Approx. 31.2 g
Trade Mark	N/A

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

Key Details

The UN38.3 standard requires lithium batteries to pass a series of eight distinct abuse and environmental tests before they may be transported. The table below summarises the test items prescribed under Section 38.3 of the UN Manual of Tests and Criteria (Eighth Revision) and the verdict convention used in report WTH25D05118921B.

Test Item	UN38.3 Sub-section	Applicability	Result
T.1 Altitude Simulation	38.3.4.1	Applicable	Pass (P)
T.2 Thermal Test	38.3.4.2	Applicable	Pass (P)
T.3 Vibration	38.3.4.3	Applicable	Pass (P)
T.4 Shock	38.3.4.4	Applicable	Pass (P)
T.5 External Short Circuit	38.3.4.5	Applicable	Pass (P)
T.6 Impact / Crush	38.3.4.6	Applicable	Pass (P)
T.7 Overcharge	38.3.4.7	Applicable	Pass (P)
T.8 Forced Discharge	38.3.4.8	Applicable	Pass (P)

Verdict legend used in the report:

P (Pass) — The test object meets the requirement of the standard.
F (Fail) — The test object does not meet the requirement.
N/A — The test case does not apply to this product.

All applicable test cases for the L1 battery pack model 1S1P-1500 returned a Pass result, confirming that the product is compliant with transport safety requirements for lithium-ion batteries.

Standards & Compliance

The testing was conducted in accordance with the following standard:

Standard	Full Title	Revision
UN38.3	UN Recommendations on the Transport of Dangerous Goods — Manual of Tests and Criteria, Section 38.3	Eighth Revision (ST/SG/AC.10/11/Rev.8) with Amendment

UN38.3 is the internationally recognised transport safety standard for lithium metal and lithium-ion batteries. It is mandated by major aviation and logistics regulations worldwide, including IATA Dangerous Goods Regulations (DGR) and ICAO Technical Instructions, as a prerequisite for shipping batteries by air.

Because the 1S1P-1500 battery pack has an energy content of 5.7 Wh — well below the 100 Wh threshold for individual cells and 20 Wh per cell threshold — it falls into the category of small lithium-ion batteries subject to the full UN38.3 test regime. Successful completion of all eight test sub-sections confirms that the L1 battery pack may be transported in compliance with international dangerous goods regulations.

Validity & Certification Body

The report was issued on 2025-05-23 by Waltek Testing Group Co., Ltd. UN38.3 test reports do not carry a fixed expiry date under the UN Recommendations themselves; however, a new report is typically required whenever there is a material change to cell chemistry, construction, or electrical specifications. Applicants are advised to consult with their logistics partners regarding carrier-specific validity requirements.

Field	Detail
Laboratory	Waltek Testing Group Co., Ltd. (深圳沃特检验集团股份有限公司)
Laboratory Address	No. 77, Houjie Section, Guantai Rd., Houjie Town, Dongguan City, Guangdong, China
Laboratory Website	http://www.waltek.com.cn
Telephone	+86-769-2267 6998
Fax	+86-769-2267 6828
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 Reference	WT-510-201-02-B
Report Total Pages	16

Frequently Asked Questions

What is UN38.3 and why does the ETENWOLF L1 battery need it?: UN38.3 is a set of transport safety tests defined in the UN Manual of Tests and Criteria that all lithium-ion and lithium metal batteries must pass before they can be shipped internationally. The L1 battery pack requires this certification to comply with IATA, ICAO, and national dangerous goods regulations governing air freight and other modes of transport.
Which specific tests did the L1 battery pack undergo?: The 1S1P-1500 battery pack completed all eight UN38.3 sub-tests: T.1 Altitude Simulation, T.2 Thermal Test, T.3 Vibration, T.4 Shock, T.5 External Short Circuit, T.6 Impact/Crush, T.7 Overcharge, and T.8 Forced Discharge. All tests returned a Pass result, as recorded in report WTH25D05118921B.
Does the UN38.3 report expire?: The UN Recommendations do not specify a fixed expiry date for UN38.3 test reports. In practice, the report remains valid as long as the battery design — including cell chemistry, dimensions, and electrical ratings — remains unchanged. Any modification to these parameters requires a new test report. Individual carriers and freight forwarders may impose their own validity windows, typically two to three years.
Who issued the UN38.3 test report for the ETENWOLF L1?: The report (reference WTH25D05118921B) was issued by Waltek Testing Group Co., Ltd., an accredited third-party testing laboratory located in Dongguan, Guangdong, China. The report was tested by Jacky Sun, reviewed by Jack Chen, and approved by Deval Qin on 2025-05-23.