What does UN38.3 compliance mean for the ETENWOLF S0 battery pack?

UN38.3 compliance means the lithium-ion battery pack inside the ETENWOLF S0 has passed all eight mandated transport safety tests — including altitude simulation, thermal cycling, vibration, shock, short circuit, impact, overcharge, and forced discharge — and has been confirmed safe for international shipment by air, sea, and ground freight under UN and IATA regulations.

Which test standard version was used for this UN38.3 report?

The battery pack was tested to the Eighth Revised Edition of the UN Manual of Tests and Criteria, Section 38.3 (ST/SG/AC.10/11/Rev.8 38.3), which is the most current amendment applicable at the time of testing in September 2025.

What are the key electrical specifications of the battery pack in the ETENWOLF S0?

The battery pack (model 2S1P-1200) has a rated voltage of 7.4V, a rated capacity of 1200mAh, and an energy rating of 8.88Wh. It uses two 112445 lithium-ion cells in a 2-series, 1-parallel configuration. The maximum discharge current is 12000mA and the pack weighs approximately 62.7g.

Who conducted the UN38.3 testing for the ETENWOLF S0 battery pack?

Testing was conducted by Waltek Testing Group Co., Ltd., a third-party accredited testing and inspection organization in Dongguan, Guangdong, China. The report (WTH25D09245621B) was tested by Jason Zhen, reviewed by Jack Chen, and approved by Deval Qin, and was issued on 2025-09-26.

UN38.3 Test Report for ETENWOLF S0 Lithium-ion Battery Pack — WTH25D09245621B

Document Overview

Document Overview This page presents the findings of official UN38.3 test report WTH25D09245621B, issued by Waltek Testing Group Co., Ltd. (Shenzhen), a third-party accredited testing laboratory. The report certifies that the lithium-ion battery pack used in the ETENWOLF S0 portable bike pump complies with the…

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 findings of official UN38.3 test report WTH25D09245621B, issued by Waltek Testing Group Co., Ltd. (Shenzhen), a third-party accredited testing laboratory. The report certifies that the lithium-ion battery pack used in the ETENWOLF S0 portable bike pump complies with the UN Recommendations on the Transport of Dangerous Goods — Manual of Tests and Criteria, Eighth Revised Edition, Section 38.3 (ST/SG/AC.10/11/Rev.8 38.3).

Field	Detail
Report Number	WTH25D09245621B
Document Type	UN38.3 Test Report
Issuing Body	Waltek Testing Group Co., Ltd.
Date of Sample Receipt	2025-09-15
Date of Testing	2025-09-15 to 2025-09-24
Date of Issue	2025-09-26
Overall Test Result	PASS — Complies with ST/SG/AC.10/11/Rev.8 38.3

The report covers all mandatory transport safety tests (T1 through T8) required for lithium-ion battery packs intended for air, sea, and ground shipment. Testing was conducted under controlled environmental conditions: ambient temperature 20°C–25°C, relative humidity 45%–75%.

Product Information

The battery pack tested is the internal power cell assembly designed for the ETENWOLF S0 portable bike pump. It is a 2-series, 1-parallel (2S1P) lithium-ion configuration built from two cylindrical cells.

Parameter	Value
Product Classification	Lithium-ion Battery Pack
Battery Pack Model	2S1P-1200
Cell Model	112445
Configuration	2 cells, 2S1P
Rated Voltage	7.4 V
Rated Capacity	1200 mAh (per cell)
Energy	8.88 Wh
Maximum Charge Voltage	5 V
Standard Charge Current	1200 mA
Maximum Charge Current	1200 mA
Standard Discharge Current	1200 mA
Maximum Discharge Current	12000 mA
Discharge Cut-off Voltage	6 V
Dimensions	44.5 mm × 24.3 mm × 21.7 mm
Shape	Almost Cuboid
Mass	Approx. 62.7 g

The applicant and manufacturer on record 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

The battery pack was subjected to the full sequence of UN38.3 transport safety tests. Tests T1 through T5 were conducted on the same set of samples in sequence. Tests T6 and T8 used separate, previously untested samples. Test T7 used undamaged batteries that had previously passed T1–T5. All tests were performed at two battery states: after the 1st charge-discharge cycle (fully charged or 50% capacity as applicable) and after 25 charge-discharge cycles.

Test	Test Name	Key Conditions	Result
T1	Altitude Simulation	11.6 kPa, 23.6°C, ≥6 hours; OCV after test ≥90% of pre-test OCV	PASS
T2	Thermal Test	Cycling between 72±2°C (≥6 h) and −40±2°C (≥6 h), transition ≤30 min, 10 cycles; stored 24 h at ambient after	PASS
T3	Vibration	Sinusoidal vibration per UN38.3.4.3 requirements	PASS
T4	Shock	Half-sine shock pulses per UN38.3.4.4 requirements	PASS
T5	External Short Circuit	Short circuit at 55±2°C, resistance ≤0.1 Ω	PASS
T6	Impact / Crush	Tested at 50% of design rated capacity (1st and 25th cycle states)	PASS
T7	Overcharge	Conducted using undamaged batteries from T1–T5	PASS
T8	Forced Discharge	Tested at fully discharged state (1st and 25th cycle states)	PASS

Pass criteria applied across all tests included: no leakage, no venting, no disassembly, no rupture, no fire, and no explosion. For tests where voltage measurement applies, post-test open-circuit voltage must be ≥90% of pre-test voltage. Mass loss limits applied by battery weight bracket: for batteries between 1 g and 75 g (this pack is approximately 62.7 g), mass loss must not exceed 0.2%.

Sample groups used during testing:

B01#–B04# and B05#–B08#: T1–T5 sequence (fully charged, 1st and 25th cycle)
C01#–C05# and C06#–C10#: T6 (50% capacity, 1st and 25th cycle)
B09#–B12# and B13#–B16#: T7 (fully charged, 1st and 25th cycle)
C11#–C20# and C21#–C30#: T8 (fully discharged, 1st and 25th cycle)

Standards & Compliance

The battery pack in the ETENWOLF S0 was tested against the following standard:

Standard	Full Title	Scope
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, Section 38.3	Transport safety testing for lithium metal and lithium-ion cells and batteries

UN38.3 is the globally recognized standard for qualifying lithium batteries for transport by air (IATA Dangerous Goods Regulations), sea (IMDG Code), and ground (ADR/RID). Compliance is required by most international couriers and freight forwarders before lithium-containing products can be shipped. The Eighth Revised Edition (Rev.8) reflects the most current version of the UN transport testing framework at the time of this report’s issuance.

The test specification citation used in this report: 联合国《试验和标准手册》第8修订版, 第38.3章节 / Section 38.3 Recommendations — Manual of Tests and Criteria Eighth revision edition Amendment ST/SG/AC.10/11/Rev.8 38.3.

Validity & Certification Body

This report was issued by Waltek Testing Group Co., Ltd. (深圳沃特检验集团股份有限公司), an accredited third-party inspection and testing organization based in China.

Field	Detail
Report Number	WTH25D09245621B
Date of Issue	2025-09-26
Testing Period	2025-09-15 to 2025-09-24
Laboratory Name	Waltek Testing Group Co., Ltd.
Laboratory Address	No. 77, Houjie Section, Guantai Rd., Houjie Town, Dongguan City, Guangdong, China
Laboratory Website	www.waltek.com.cn
Telephone	+86-769-2267 6998
Fax	+86-769-2267 6828
Email	[email protected]
Tested By	Jason Zhen (甄锦炎)
Reviewed By	Jack Chen (陈咏松)
Approved By	Deval Qin (秦林伟)

UN38.3 test reports do not carry a fixed expiry date under the UN model regulations themselves; however, the report applies specifically to the tested sample lot and model number 2S1P-1200 as submitted. Any change in cell chemistry, design, or configuration would require re-testing. Users should verify acceptance requirements with their specific carrier or customs authority, as some may impose documentation age limits.

Per the issuing laboratory’s standard terms, this report may not be partially reproduced without prior written permission from Waltek Testing Group. The report is invalid if altered, added to, unsigned by the approver, or not bearing the laboratory’s official inspection seal. If the accreditation recognized seal is absent, the report is limited to internal quality control, research, or educational use only.

Frequently Asked Questions

What does UN38.3 compliance mean for the ETENWOLF S0 battery pack?: UN38.3 compliance means the lithium-ion battery pack inside the ETENWOLF S0 has passed all eight mandated transport safety tests — including altitude simulation, thermal cycling, vibration, shock, short circuit, impact, overcharge, and forced discharge — and has been confirmed safe for international shipment by air, sea, and ground freight under UN and IATA regulations.
Which test standard version was used for this report?: The battery pack was tested to the Eighth Revised Edition of the UN Manual of Tests and Criteria, Section 38.3 (ST/SG/AC.10/11/Rev.8 38.3), which is the most current amendment applicable at the time of testing in September 2025.
What are the key electrical specifications of the battery pack in the ETENWOLF S0?: The battery pack (model 2S1P-1200) has a rated voltage of 7.4 V, a rated capacity of 1200 mAh, and an energy rating of 8.88 Wh. It uses two 112445 lithium-ion cells arranged in a 2-series, 1-parallel configuration. The maximum discharge current is 12000 mA and the pack weighs approximately 62.7 g.
Who conducted the UN38.3 testing and is the laboratory accredited?: Testing was conducted by Waltek Testing Group Co., Ltd., a third-party testing and inspection organization located in Dongguan, Guangdong, China. The report references accreditation requirements and carries the signatures of the tester (Jason Zhen), reviewer (Jack Chen), and approver (Deval Qin). For details on Waltek’s accreditation scope, visit www.waltek.com.cn.