Document Overview
Key Findings The S0 portable bike pump completed a full-discharge thermal run at 35 psi load; the highest recorded temperature was 82.3 °C at the air-nozzle connection, and results are issued for reference only (not a pass/fail determination). Report No.: 2025080501.0 Test Date: 2025-08-05 Samples:…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The S0 portable bike pump completed a full-discharge thermal run at 35 psi load; the highest recorded temperature was 82.3 °C at the air-nozzle connection, and results are issued for reference only (not a pass/fail determination).
- Report No.: 2025080501.0
- Test Date: 2025-08-05
- Samples: S0-2# and S0-9# (2 pcs)
- Peak temperature (S0-2#): 82.2 °C — air-nozzle connection
- Peak temperature (S0-9#): 82.3 °C — air-nozzle connection
- Highest temperature rise: 55.5 K — air-nozzle connection (S0-9#)
- Ambient temperature: 26.8 °C for both samples
- Verdict: For reference only (■供参考)
Test Overview
| Field | Detail |
|---|---|
| Test Type | Environmental Testing — Reliability Test (■可靠性测试) |
| Test Standard | Internal Standard (内部标准) |
| Report No. | 2025080501.0 |
| Test Date | 2025-08-05 |
| Product No. / Name | S0 Portable Bike Pump (充气泵) |
| Manufacturer / Brand | ETENWOLF |
| Sample Quantity / No. | 2 PCS — S0-2# / S0-9# |
| Test Environment (Ambient) | 26.8 °C |
| Test Purpose | Evaluate thermal stability, heat-dissipation performance, and potential overheating risk of the samples |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Thermal Rise Tester — Type-K Thermocouple (温升测试仪，热电偶K型) |
| Load Pressure | 35 psi (continuous run) |
| Run Duration | Until battery fully discharged (电量耗尽) |
| Measurement Points | Battery, Cylinder, Air-Nozzle Connection, Hose Tail, Hose Head |
| Ambient Temperature | 26.8 °C |
| Test Criterion | Evaluate temperature-change performance stability (评估样品温度变化的性能稳定性) |
Test Procedure
- Pre-test: Record initial ambient temperature (baseline for temperature-rise calculations).
- Setup: Attach Type-K thermocouples to all measurement points — battery, cylinder, air-nozzle connection, hose tail, and hose head. Confirm wiring diagram (接线图) before powering on.
- Run: Power on each sample under a continuous 35 psi load and allow the pump to run until the battery is fully discharged.
- Data collection: Capture temperature readings at all points throughout the run; record peak (maximum) temperature and temperature rise (ΔT in K) for each point.
- Post-test: Allow samples to cool; document all peak temperatures and temperature-rise values in the test data table.
- Acceptance criteria: This test cycle is issued for reference only — results assess performance stability; no explicit pass/fail threshold is defined in the internal standard for this run.
Test Data & Results
| Sample No. | Metric | Battery | Cylinder | Air-Nozzle Connection | Hose Tail | Hose Head | Ambient Temperature (°C) |
|---|---|---|---|---|---|---|---|
| S0-2# | Peak Temperature (°C) | 46.7 | 71.1 | 82.2 | 56.0 | 49.2 | 26.8 |
| S0-2# | Temperature Rise (K) | 19.9 | 44.3 | 55.4 | 29.2 | 22.4 | — |
| S0-9# | Peak Temperature (°C) | 47.5 | 77.6 | 82.3 | 60.2 | 51.8 | 26.8 |
| S0-9# | Temperature Rise (K) | 20.7 | 50.8 | 55.5 | 33.4 | 25.0 | — |
Observations: Across both samples, the air-nozzle connection consistently recorded the highest peak temperature (82.2 °C and 82.3 °C) and the highest temperature rise (55.4 K and 55.5 K). The cylinder was the second-hottest point. Battery and hose temperatures remained noticeably lower. Both samples showed closely matched thermal profiles, indicating consistent manufacturing. Full time-series data is available on the companion sheet (温升变化数据).
Conclusion
| Field | Detail |
|---|---|
| Result | For reference only (■供参考) |
| Standard | Internal Standard |
| Test Conditions | 35 psi load, run to full battery discharge, ambient 26.8 °C |
| Samples Tested | S0-2#, S0-9# (2 PCS) |
| Verdict | Data is provided as a reference baseline for thermal performance. No pass/fail threshold was formally triggered. Hottest point: air-nozzle connection (~82 °C / ~55 K rise). |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Approval (合格 / Pass reviewer) | Li Guanghua | 2025-08-05 |
| Review (不合格 / Fail reviewer) | Zhang Ronggui | 2025-08-05 |
| Tester (供参考 / Reference signatory) | Mai Shaoqiang | 2025-08-05 |
| Form / Source File | S0 充气泵-温升报告-2025.8.5.xls — Sheet: 温升报告 (Sheet 1 of 2) | |
| Report No. | 2025080501.0 | |
Frequently Asked Questions
What does “for reference only” mean for this test result?
The verdict for reference only (■供参考) means this test run was conducted to gather baseline thermal data rather than to certify compliance against a defined pass/fail limit. The data informs future product development and quality monitoring but does not constitute a formal approval or rejection of the unit.
Why is the air-nozzle connection the hottest point?
The air-nozzle connection is where pressurized air exits the pump head at high velocity. Friction between the rapidly moving air and the metal fitting, combined with heat conducted from the cylinder, makes this junction the peak thermal point. Both samples measured approximately 82 °C here at 35 psi continuous load.
What is temperature rise (K) and how is it calculated?
Temperature rise, expressed in Kelvin (K), is the difference between a component’s peak measured temperature and the ambient temperature at the start of the test. Since the ambient was 26.8 °C for both samples, a reading of 82.2 °C at the nozzle yields a rise of 82.2 − 26.8 = 55.4 K. Kelvin and Celsius degrees are the same size, so ΔT values in K and °C are numerically identical.
Where can I find the full time-series temperature data?
The complete per-second (or per-interval) temperature change data recorded during the run is stored on the companion worksheet 温升变化数据 within the same Excel file. A cross-linked article for that sheet is listed in the Related Products section below.
Related Products
- ETENWOLF S0 Portable Bike Pump — Product Page
- S0 Thermal Test — Temperature Rise Change Data (温升变化数据)