Document Overview
Document Overview This page presents the official IEC 62133-2 test report for the ETENWOLF X5PRO lithium-ion battery pack, issued by Waltek Testing Group Co., Ltd. The report reference number is WTH25D12334287B, covering 25 pages including photographic documentation. Field Details Document Type Test Report (IEC 62133-2…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- International Transportation: CB / MSDS / UN38.3
Document Overview
This page presents the official IEC 62133-2 test report for the ETENWOLF X5PRO lithium-ion battery pack, issued by Waltek Testing Group Co., Ltd. The report reference number is WTH25D12334287B, covering 25 pages including photographic documentation.
| Field | Details |
|---|---|
| Document Type | Test Report (IEC 62133-2 Certification) |
| Reference No. | WTH25D12334287B |
| Issuing Laboratory | Waltek Testing Group Co., Ltd. |
| Applicant | Guangdong Bestek Technology Co., LTD |
| Date of Sample Receipt | 2025-12-16 |
| Date of Test | 2025-12-16 to 2025-12-25 |
| Date of Issue | 2026-04-17 |
| Applicable Standard | IEC 62133-2:2017+AMD1:2021 |
| Overall Test Result | PASS — The submitted samples comply with the above standards |
The report was compiled by Jason Zhen (Project Engineer) and approved by Deval Qin (Designated Reviewer) at Waltek Testing Group Co., Ltd., No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China.
Product Information
The tested product is a lithium-ion battery pack designed for use in the ETENWOLF X5PRO portable inflation tool. It is classified for built-in use in portable applications and connects via a DC connector.
| Attribute | Cell (503880) | Battery Pack (4S1P-1500) |
|---|---|---|
| Model | 503880 | 4S1P-1500 |
| Nominal Voltage | 3.7 V | 14.8 V |
| Rated Capacity | 1500 mAh | 1500 mAh |
| Energy Rating | — | 22.2 Wh |
| Charge Method | CC/CV | CC/CV |
| Charge Temperature Range | 0–45 °C | 0–45 °C |
| Standard Charge Current | 750 mA | 750 mA |
| Maximum Charge Current | 1500 mA | 1500 mA |
| Maximum Discharge Current | 90000 mA | 90000 mA |
| Upper Limit Charge Voltage | 4.20 V | 16.8 V |
| End-of-Charge Current | 75 mA | 75 mA |
| Discharge Cut-off Voltage | 3 V | 12 V |
| Dimensions | 5.6 mm × 39.0 mm × 82.0 mm | 23.0 mm × 39.0 mm × 92.0 mm |
| Weight | Approx. 36.2 g | Approx. 223.7 g |
| Shape | Prismatic | Almost Cuboid |
| Electrolyte Type | N/A (non-polymer) | N/A |
The manufacturer-declared charging method is: charge at a constant current of 750 mA until voltage reaches 16.8 V, then charge at a constant voltage of 16.8 V until the current reduces to 75 mA. The product label reads: Lithium-ion Battery Pack, Model: 4S1P-1500 (4INP6/39/82), Rating: 14.8 V, 1500 mAh, 22.2 Wh.
Key Details
The following table summarises all test clauses performed under IEC 62133-2:2017+AMD1:2021 and their outcomes.
| Clause | Test Name | Verdict |
|---|---|---|
| 4 | Parameter Measurement Tolerances | Pass |
| 5.1 | General Safety Considerations — General | Pass |
| 5.2 | Insulation and Wiring | Pass |
| 5.3 | Venting — Pressure Relief Mechanism | Pass |
| 5.4 | Temperature / Voltage / Current Management | Pass |
| 7.2.1 | Continuous Charging at Constant Voltage (cells) | Pass |
| 7.2.2 | Case Stress at High Ambient Temperature (battery) | Pass |
| 7.3.1 | External Short-Circuit (cell) | Pass |
| 7.3.2 | External Short-Circuit (battery) | Pass |
| 7.3.3 | Free Fall | Pass |
| 7.3.4 | Thermal Abuse (cells) | Pass |
| 7.3.5 | Crush (cells) | Pass |
| 7.3.6 | Over-Charging of Battery | Pass |
| 7.3.7 | Forced Discharge (cells) | Pass |
| 7.3.8.1 | Vibration | Pass |
| 7.3.8.2 | Mechanical Shock | Pass |
| 7.3.9 | Design Evaluation — Forced Internal Short Circuit (cells) | Pass |
All 17 test cases returned a Pass result. No failures or conditional results were recorded. The battery pack fulfils the requirements of EN 62133-2:2017+AMD1:2021 with no national differences applicable.
Standards & Compliance
The ETENWOLF X5PRO battery pack was evaluated against the following standard:
- IEC 62133-2:2017+AMD1:2021 — Safety requirements for portable sealed secondary lithium cells and batteries containing alkaline or other non-acid electrolytes for use in portable applications. Part 2: Lithium systems.
The standard covers safety performance under normal and abuse conditions, including electrical, mechanical, and thermal stress scenarios. Key compliance areas demonstrated by this report include:
- Electrical safety: Insulation resistance, wiring integrity, voltage and current management, over-charge protection.
- Mechanical safety: Free fall (7.3.3), vibration (7.3.8.1), mechanical shock (7.3.8.2), and crush resistance (7.3.5).
- Thermal safety: Thermal abuse testing (7.3.4), case stress at high ambient temperature (7.2.2), and forced internal short circuit evaluation (7.3.9).
- Short-circuit protection: External short-circuit tests at both cell (7.3.1) and battery (7.3.2) levels.
- Pressure relief: Battery cases and cells incorporate mechanisms to preclude rupture, explosion, and self-ignition (clause 5.3).
Test verdict notation used throughout the report: P = Pass, F = Fail, N/A = Not Applicable.
Validity & Certification Body
This test report was issued on 2026-04-17 by Waltek Testing Group Co., Ltd., an accredited third-party testing laboratory.
| Field | Details |
|---|---|
| Report Reference No. | WTH25D12334287B |
| Date of Issue | 2026-04-17 |
| Testing 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 |
| Tel | +86-769-2267 6998 |
| Fax | +86-769-2267 6828 |
| Compiled By | Jason Zhen, Project Engineer |
| Approved By | Deval Qin, Designated Reviewer |
| Report Scope | Results refer only to the sample(s) tested |
This report is valid only with the specific stamp of the test institute and the original signatures of the compiler and approver. The report cannot be reproduced except in full, without prior written permission of Waltek Testing Group Co., Ltd. The certification marks displayed on the product label must be authorised by the respective National Certification Bodies (NCBs) that own those marks.
Frequently Asked Questions
- What does IEC 62133-2 certification mean for the ETENWOLF X5PRO battery pack?
-
IEC 62133-2:2017+AMD1:2021 is the internationally recognised safety standard for portable lithium-ion cells and battery packs. Achieving a Pass result across all 17 test clauses — including short-circuit, thermal abuse, crush, vibration, and over-charge tests — confirms that the ETENWOLF X5PRO battery pack meets rigorous safety requirements for portable applications. The certification is required in many markets for consumer electronics and power tools.
- What is the rated energy and voltage of the 4S1P-1500 battery pack?
-
The 4S1P-1500 battery pack used in the ETENWOLF X5PRO has a nominal voltage of 14.8 V, a rated capacity of 1500 mAh, and an energy rating of 22.2 Wh. It is configured as four lithium-ion cells in series (4S) with one cell in parallel (1P), each cell rated at 3.7 V / 1500 mAh.
- Who conducted the IEC 62133-2 testing and where?
-
All tests were conducted by Waltek Testing Group Co., Ltd. at their facility located at No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China. Testing took place from 2025-12-16 to 2025-12-25, and the report was issued on 2026-04-17. The report was compiled by Jason Zhen (Project Engineer) and approved by Deval Qin (Designated Reviewer).
- What are the safe charging parameters for the X5PRO battery pack?
-
The manufacturer-declared charging procedure is: apply a constant current of 750 mA until the pack voltage reaches 16.8 V, then switch to a constant voltage of 16.8 V and continue until the current drops to 75 mA (end-of-charge current). The maximum permissible charge current is 1500 mA. Charging must only be performed within the temperature range of 0 °C to 45 °C. These parameters were verified as part of the IEC 62133-2 compliance testing for the ETENWOLF X5PRO.
Related Documents
The following certification types are typically required alongside an IEC 62133-2 test report for a lithium-ion battery pack used in a portable inflation tool such as the ETENWOLF X5PRO:
- UN 38.3 Transportation Testing — Mandatory for the air and ground transport of lithium-ion batteries. Covers altitude simulation, thermal, vibration, shock, external short circuit, impact, overcharge, and forced discharge tests under UN Manual of Tests and Criteria, Part III, Section 38.3.
- CE Declaration of Conformity (Battery Regulation EU 2023/1542) — Required for placing the product on the EU market, covering safety, labelling, and due-diligence obligations for battery products.
- RoHS Compliance Certificate — Confirms the battery pack is free from restricted hazardous substances under EU RoHS Directive 2011/65/EU as amended.
- REACH SVHC Declaration — Verifies the absence or disclosure of Substances of Very High Concern under EU REACH Regulation (EC) No 1907/2006.
- KC Certification (Korea) — Required for sales in the Republic of Korea under the Electrical Appliances and Consumer Products Safety Control Act.
- FCC Declaration of Conformity — Applicable if the X5PRO contains wireless communication modules; covers electromagnetic compatibility under FCC regulations.
- IEC 62368-1 Audio/Video, Information and Communication Technology Equipment Safety Report — Relevant for the overall product if it incorporates electronic control systems or digital interfaces.
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