Document Overview
Key Findings The ETENWOLF S1 portable tire inflator passed all thermal shock cycling tests, showing no functional failure or abnormal performance after exposure to extreme high and low temperature storage conditions. Test Type: Thermal Shock / High-Low Temperature Cycling High Temperature: 70°C, 80% RH, 2…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The ETENWOLF S1 portable tire inflator passed all thermal shock cycling tests, showing no functional failure or abnormal performance after exposure to extreme high and low temperature storage conditions.
- Test Type: Thermal Shock / High-Low Temperature Cycling
- High Temperature: 70°C, 80% RH, 2 hours per cycle
- Low Temperature: −20°C, 2 hours per cycle
- Total Storage Duration: 72 hours
- Samples Tested: 3 pcs
- Verdict: Pass — normal power-on, normal charging, no functional failures
- Report Number: 2025092201
- Test Dates: 2025-09-19 to 2025-09-22
Test Overview
| Field | Details |
|---|---|
| Test Type | Thermal Shock (High-Low Temperature Cycling) |
| Standard / Test Basis | Internal procedure — functional verification under extreme temperature storage |
| Report Number | 2025092201 |
| Page | 1 |
| Test Dates | 2025-09-19 to 2025-09-22 |
| Product Name | S1 Portable Tire Inflator (S1充气泵) |
| Manufacturer | BTK |
| Surface Treatment | / |
| Sample Quantity | 3 pcs |
| Test Reason | New Product Verification |
| Test Objective | Evaluate the durability of the prototype unit during storage under extreme temperature conditions |
| Laboratory Environment | Temperature: 24°C; Humidity: 45% RH |
Test Equipment & Setup
| Item | Details |
|---|---|
| Instrument Name | Constant Temperature and Humidity Testing Machine (恒温恒湿试验机) |
| High Temperature Condition | 70°C, Humidity 80% RH, duration 2 hours |
| Low Temperature Condition | −20°C, duration 2 hours |
| Total Storage Duration | 72 hours |
| Post-Exposure Functional Test | Power-on function test and charging test |
| Test Requirement | No functional failure; unit must power on normally |
| Form Number | BTK-R-Q-087A/1 |
Test Procedure
- Pre-Test: Record laboratory environment conditions (temperature 24°C, humidity 45% RH). Inspect all 3 sample units for pre-existing damage and confirm baseline functionality (power-on and charging).
- Setup: Place 3 sample units inside the constant temperature and humidity testing machine. Configure the programmable temperature controller per the required thermal shock profile.
- High Temperature Phase: Set chamber to 70°C at 80% RH; maintain for 2 hours per cycle.
- Low Temperature Phase: Set chamber to −20°C; maintain for 2 hours per cycle.
- Total Storage: Continue cycling for a cumulative storage duration of 72 hours in accordance with the programmed control profile.
- Post-Test Functional Check: Remove samples from the chamber. Allow units to return to ambient conditions. Perform power-on test and charging test on all 3 units.
- Acceptance Criteria: All units must power on without anomaly, charge normally, and exhibit no functional failure of any kind.
Test Data & Results
| Parameter | Specified Condition | Observation |
|---|---|---|
| High Temperature | 70°C, 80% RH, 2 hours | Completed as programmed |
| Low Temperature | −20°C, 2 hours | Completed as programmed |
| Total Storage Duration | 72 hours | Completed |
| Power-On After Test | Normal, no anomaly | Pass — no abnormality observed (开机无异常) |
| Charging After Test | Normal charging | Pass — charging normal (充电正常) |
| Functional Failure | None permitted | No functional failure detected |
| Sample 1 | 3 pcs total | Pass |
| Sample 2 | 3 pcs total | Pass |
| Sample 3 | 3 pcs total | Pass |
Observations: All three sample units of the S1 Portable Tire Inflator passed thermal shock cycling under extreme high and low temperature storage conditions. Post-test functional inspection confirmed normal power-on behavior and normal charging performance across all samples. No performance anomalies or functional failures were recorded. The programmed temperature control profile was executed as specified throughout the 72-hour total storage period.
Conclusion
| Field | Details |
|---|---|
| Result | The S1 samples passed all thermal shock storage conditions with no functional failure. |
| Standard / Requirement | No functional failure; normal power-on required after extreme temperature exposure |
| Conditions | High: 70°C / 80% RH / 2 h; Low: −20°C / 2 h; Total: 72 h storage; Lab: 24°C / 45% RH |
| Samples | 3 pcs — S1 Portable Tire Inflator, Manufacturer: BTK |
| Verdict | ■ Pass □ Fail □ Reference |
Document Information
| Role | Name (Pinyin) |
|---|---|
| Approval (核准) | Mai Shaoqiang |
| Review (审查) | Zhang Ronggui |
| Tester (试验人) | Li Guanghua |
| Form Number | BTK-R-Q-087A/1 |
| Report Number | 2025092201 |
| Article Author | Daniel Wright |
| Published Date | 2026-07-13 |
Frequently Asked Questions
What is a thermal shock (high-low temperature cycling) test?
A thermal shock test exposes a product to alternating extremes of high and low temperature in rapid succession to assess its structural and functional durability. For the S1, this meant cycling between 70°C (high heat, high humidity) and −20°C (sub-zero cold) to simulate the harshest real-world storage environments a portable tire inflator might encounter.
Why does the S1 need to pass extreme temperature storage testing?
Portable tire inflators are stored and used in a wide range of climates — from hot car trunks in summer to unheated garages in winter. Thermal shock testing validates that internal components, battery chemistry, circuitry, and housing materials remain fully functional after exposure to these extremes, giving users confidence in reliability across all seasons.
What does the Pass verdict mean in practical terms for the end user?
A Pass verdict means all three S1 units powered on normally and charged without issue after 72 continuous hours of extreme temperature cycling. No component failures, display issues, or charging malfunctions were detected. This confirms the S1 is suitable for storage and use across a broad range of environmental temperatures.
Who manufactured the S1 units tested in this report?
The S1 Portable Tire Inflator units tested in this report were manufactured by BTK. The test was conducted by ETENWOLF’s quality team as part of new product verification, with report number 2025092201 issued on 2025-09-22.
Related Products
- ETENWOLF S1 Portable Tire Inflator — Product Page
- More articles by Daniel Wright