Document Overview
Document Overview This page presents the details of Test Report WTH25D05114737B, a formal safety certification document issued under the IEC 62133-2:2017+AMD1:2021 standard for portable lithium-ion battery packs. The report was prepared and issued by Waltek Testing Group Co., Ltd., an accredited independent testing laboratory located…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- International Transportation: CB / MSDS / UN38.3
Document Overview
This page presents the details of Test Report WTH25D05114737B, a formal safety certification document issued under the IEC 62133-2:2017+AMD1:2021 standard for portable lithium-ion battery packs. The report was prepared and issued by Waltek Testing Group Co., Ltd., an accredited independent testing laboratory located at No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China.
| Field | Details |
|---|---|
| Document Type | IEC 62133-2 Safety Test Report |
| Reference Number | WTH25D05114737B |
| Issuing Laboratory | Waltek Testing Group Co., Ltd. |
| Applicable Standard | IEC 62133-2:2017+AMD1:2021 |
| Date of Sample Receipt | 2025-05-08 |
| Testing Period | 2025-05-08 to 2025-05-19 |
| Date of Issue | 2025-05-23 |
| Overall Test Result | PASS — The submitted samples comply with the above standards |
| Total Pages | 25 pages |
The report also confirms compliance with EN 62133-2:2017+AMD1:2021, covering national differences. Results are specific to the tested sample lot and the report may not be reproduced in part without prior written permission from Waltek Testing Group Co., Ltd.
Product Information
The product under test is the lithium-ion battery pack used in the ETENWOLF L2 inflation tool. The battery is manufactured and supplied by Guangdong Bestek Technology Co., Ltd., registered at No. 1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China.
| Parameter | Value |
|---|---|
| Product Name | Lithium-ion Battery Pack |
| Model Number | 1S1P-2600 |
| Cell Configuration | 1S1P (1 cell in series, 1 in parallel) |
| Cell Model | INR18650 2600mAh (also referenced as 1INR19/66) |
| Nominal Voltage | 3.7 V |
| Rated Capacity | 2600 mAh |
| Energy Rating | 9.62 Wh |
| Charge Method | CC/CV via Type-C input: 5V/1.0A–2.0A |
| Standard Charge Current | Type-C: 5V / 1.0A (integrated circuit, until digital display reads 100%) |
| Maximum Charge Current | 2000 mA (5V / 2.0A) |
| Maximum Discharge Current | 10 A |
| Upper Limit Charge Voltage | 4.25 V per cell / 5.25 V (input) |
| End-of-Charge Current | 130 mA |
| Discharge Cut-off Voltage | 2.75 V |
| Discharge Current (0.2 It A) | 520 mA |
| Specified Final Voltage | 3.0 V |
| Charge Temperature Range | 10°C to 45°C |
| Cell Electrolyte Type | Gel polymer |
| Dimensions | Φ18.7 mm × 65.8 mm |
| Weight | Approx. 56.1 g |
| Shape | Cylindrical |
| Installation / Use Classification | Built-in, for use in portable applications |
| Supply Connection | DC Connector |
| Date Code | 2025-05 (year 2025, month 05) |
The battery pack incorporates multi-cell over-current and short-circuit protection circuitry. The internal cell (INR18650 2600mAh) is independently CB-certified by TÜV Rheinland under two referenced reports: Test Report No. CN24DKR2 001 (Certificate No. JPTUV-159517) and Test Report No. CN24XNCI 001 (Certificate No. JPTUV-170236).
Marking plate caution notices require that the battery must not be disassembled, modified, short-circuited, disposed of in fire, or exposed to high temperatures.
Key Details
The following test clauses were performed on the ETENWOLF L2 battery pack at the Waltek laboratory in Dongguan, Guangdong, China. All tests were conducted between 2025-05-08 and 2025-05-19.
| Clause | Test Name | Verdict |
|---|---|---|
| 4 | Parameter Measurement Tolerances — all control and measured values within tolerances | PASS |
| 5 | General Safety Considerations | PASS |
| 5.1 | General safety review | PASS |
| 5.2 | Insulation and Wiring — internal wiring withstands maximum current, voltage, and temperature; adequate creepage and clearance distances maintained; mechanical integrity of connections verified | PASS |
| 5.3 | Venting — pressure relief mechanism prevents rupture, explosion, and self-ignition; encapsulation does not obstruct venting | PASS |
| 7.2.2 | Case Stress at High Ambient Temperature (battery) | PASS |
| 7.3.2 | External Short-Circuit (battery) | PASS |
| 7.3.3 | Free Fall | PASS |
| 7.3.6 | Over-Charging of Battery | PASS |
| 7.3.8.1 | Vibration | PASS |
| 7.3.8.2 | Mechanical Shock | PASS |
Verdict key: P (Pass) — test object meets the requirement; F (Fail) — test object does not meet the requirement; N/A — test clause does not apply to the test object.
The insulation resistance measurement between the positive terminal and externally exposed metal surfaces is listed as N/A for this battery configuration, consistent with the product’s built-in portable application classification.
Standards & Compliance
The ETENWOLF L2 battery pack was evaluated against the following international safety standard for secondary lithium cells and batteries used in portable applications:
| Standard | Title | Scope |
|---|---|---|
| IEC 62133-2:2017+AMD1:2021 | Secondary cells and batteries containing alkaline or other non-acid electrolytes — Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications — Part 2: Lithium systems | Full compliance confirmed |
| EN 62133-2:2017+AMD1:2021 | European harmonized adoption of IEC 62133-2 | National differences: N/A; product fulfils requirements |
The constituent cell (INR18650 2600mAh) carries independent CB certification from TÜV Rheinland, covering IEC 62133-2:2017 and IEC 62133-2:2017/AMD1:2021, further reinforcing the system-level test results. The test methods applied span mechanical integrity assessments (free fall, vibration, mechanical shock), electrical safety checks (external short-circuit, over-charge), and thermal evaluations (case stress at high ambient temperature).
Validity & Certification Body
The test report was issued on 2025-05-23 and is valid for the specific sample lot submitted for testing. There is no fixed expiry date stated on the report itself; validity is contingent on the product and its manufacturing processes remaining unchanged from those evaluated during testing.
| Field | Details |
|---|---|
| Issuing Laboratory | Waltek Testing Group Co., Ltd. |
| Laboratory Address | No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China |
| Laboratory Website | http://www.waltek.com.cn |
| Telephone | +86-769-2267 6998 |
| Fax | +86-769-2267 6828 |
| Compiled By | Jacky Sun — Project Engineer |
| Approved By | Deval Qin — Designated Reviewer |
| Report Reference No. | WTH25D05114737B |
| Date of Issue | 2025-05-23 |
| Applicant | Guangdong Bestek Technology Co., Ltd. |
| Manufacturer | Guangdong Bestek Technology Co., Ltd. |
| CB Cell Certificate (TÜV Rheinland) | JPTUV-159517 (Report: CN24DKR2 001) and JPTUV-170236 (Report: CN24XNCI 001) |
The report is authenticated by the specific stamp of the Waltek test institute along with the signatures of the compiler and designated approver. Reproduction of the report, except in full, requires prior written permission from Waltek Testing Group Co., Ltd.
Frequently Asked Questions
- What does the IEC 62133-2 test report mean for the ETENWOLF L2 battery pack?
-
The IEC 62133-2:2017+AMD1:2021 test report (Reference No. WTH25D05114737B) confirms that the lithium-ion battery pack used in the ETENWOLF L2 has passed a comprehensive set of internationally recognized safety tests. These tests cover mechanical, electrical, and thermal stress scenarios, verifying that the battery will not rupture, catch fire, or pose a hazard under foreseeable conditions of use and misuse.
- Which specific safety tests did the ETENWOLF L2 battery pack undergo?
-
The battery pack was tested under six core clauses of IEC 62133-2:2017+AMD1:2021: case stress at high ambient temperature (clause 7.2.2), external short-circuit (clause 7.3.2), free fall (clause 7.3.3), over-charging (clause 7.3.6), vibration (clause 7.3.8.1), and mechanical shock (clause 7.3.8.2). All tests returned a Pass verdict.
- Is the internal cell in the ETENWOLF L2 battery pack independently certified?
-
Yes. The INR18650 2600mAh cell inside the 1S1P-2600 battery pack holds independent CB certification issued by TÜV Rheinland. Two test reports cover this cell: CN24DKR2 001 (Certificate No. JPTUV-159517) and CN24XNCI 001 (Certificate No. JPTUV-170236), both under IEC 62133-2:2017 and its AMD1:2021 amendment.
- What are the safe charging conditions for the ETENWOLF L2 battery pack?
-
The battery pack should be charged via its Type-C port at 5V/1.0A (standard) up to a maximum of 5V/2.0A, within an ambient temperature range of 10°C to 45°C. Charging stops automatically when the integrated circuit detects the digital display reaching 100%. The upper cell charge voltage limit is 4.25V per cell, with an end-of-charge current of 130mA. The battery must never be charged outside these parameters, disassembled, short-circuited, or exposed to fire or extreme heat.
Related Documents
The IEC 62133-2 safety test report is one part of the broader compliance documentation for the ETENWOLF L2. The following related certification types are applicable or recommended for a portable, rechargeable lithium-ion powered inflation tool of this category:
- UN 38.3 Transport Test Report — mandatory for air and ground shipment of lithium-ion batteries; covers altitude simulation, thermal test, vibration, shock, external short circuit, impact/crush, overcharge, and forced discharge per UN 38.3 requirements.
- CE Declaration of Conformity — required for sale in the European Economic Area, covering applicable EU directives including the Battery Directive and Low Voltage Directive.
- FCC ID / FCC Part 15 Test Report — required for the United States market, confirming the product meets FCC radio frequency emission limits for portable electronic devices.
- RoHS Compliance Report — confirms restriction of hazardous substances (lead, mercury, cadmium, hexavalent chromium, PBB, PBDE) per RoHS Directive 2011/65/EU.
- REACH SVHC Declaration — confirms compliance with the REACH regulation regarding substances of very high concern in the product and packaging materials.
- KC Certification — required for sale in South Korea; covers electrical safety and electromagnetic compatibility for rechargeable battery-powered portable devices under KC mark requirements.
- PSE Certification (Japan) — required for the Japanese market; portable lithium-ion battery packs fall under the specified electrical appliances category requiring PSE mark under the Electrical Appliance and Material Safety Act.
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