Document Overview
Key Findings All three ETENWOLF S7 tire inflator samples successfully completed the 20-hour cumulative discharge endurance test under a 35–40 psi load, with no functional failures or appearance defects observed at test conclusion. Test Type: Reliability — Finished-Product Life / Endurance Test Standard: Internal Control…
- Document type
- Certification Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Mechanical Reliability
Key Findings
All three ETENWOLF S7 tire inflator samples successfully completed the 20-hour cumulative discharge endurance test under a 35–40 psi load, with no functional failures or appearance defects observed at test conclusion.
- Test Type: Reliability — Finished-Product Life / Endurance Test
- Standard: Internal Control Standard
- Report No.: 2025062801
- Test Period: 2025-05-16 to 2025-06-28
- Samples: 3 PCS (Sample 1#, Sample 2#, Sample 3#)
- Target Duration: 20 cumulative hours of discharge per unit
- Load Condition: 35–40 psi, 12 V power source, 23 °C / 60 % RH
- Verdict: For Reference Only (供参考)
Test Overview
| Field | Detail |
|---|---|
| Test Title | S7 Tire Inflator — Finished-Product Life Test |
| Product No. / Name | Tire Inflator (充气泵) |
| Model / Type Specification | ETENWOLF S7 |
| Report No. | 2025062801 |
| Test Date | 2025-05-16 to 2025-06-28 |
| Sample Quantity / No. | 3 PCS |
| Test Type | Reliability Test (可靠性测试) |
| Test Standard | Internal Control Standard (内控标准) |
| Test Purpose | Evaluate whether the sample’s service life affects functional performance |
| Acceptance Criteria | Ensure no functional failure; observe stability and reliability |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Power supply / Load / Tire (电源 / 负载 / 轮胎) |
| Room Temperature | 23 °C |
| Relative Humidity | 60 % |
| Power Source | 12 V |
| Load Pressure | 35–40 psi |
| Target Cumulative Discharge Duration | 20 hours per sample |
| Charge Time per Cycle (observed) | Approx. 4 hours |
| Discharge Time per Cycle (observed) | Approx. 40–45 minutes |
Test Procedure
- Pre-test: Fully charge each S7 sample unit to 100 % battery capacity.
- Load setup: Connect the unit to a 35–40 psi load (tire) under room temperature (23 °C) and 60 % relative humidity, with a 12 V power source.
- Discharge cycle: Operate the inflator under the specified load until battery is fully depleted (one discharge cycle ≈ 40–45 minutes).
- Recharge: Recharge the unit fully (one charge cycle ≈ 4 hours) and repeat discharge cycles.
- Cycling: Continue charge–discharge cycles until each sample accumulates a total of 20 hours of cumulative discharge time.
- Monitoring: Record all error codes, appearance changes, and functional anomalies throughout the aging process.
- Post-test inspection: After reaching 20 cumulative hours, stop the test and inspect each sample for appearance defects, battery charge/discharge functionality, and any residual error codes.
Acceptance Criteria: All samples must complete 20 cumulative hours of discharge with no functional failure. Stability and reliability must be maintained throughout.
Test Data & Results
| Sample ID | Test Duration (Hours) | Observations |
|---|---|---|
| Sample 1# (样机1#) | 20 |
Post-life test observations:
|
| Sample 2# (样机2#) | 20 |
Post-life test observations:
|
| Sample 3# (样机3#) | 20 |
Post-life test observations:
|
Test Picture Notes: Photos documented include: (1) unit under life/endurance test cycling; (2) overcurrent alarm E11 display; (3) inflation accuracy and inflation time testing during the life test process; (4) unit during the aging/burn-in test phase.
Overall Test Result: All 3 PCS of S7 tire inflator samples successfully reached the 20-hour life test target (S7充气泵寿命测试3pcs，均能到达20小时寿命测试).
Conclusion
| Item | Detail |
|---|---|
| Result | For Reference Only (供参考 ■) |
| Pass | Not formally marked as Pass (口合格) |
| Fail | Not marked as Fail (口不合格) |
| Standard Applied | Internal Control Standard — 20-hour cumulative discharge endurance |
| Test Conditions | 35–40 psi load, 12 V, 23 °C, 60 % RH |
| Samples Tested | 3 PCS |
| Functional Verdict | All 3 samples completed 20-hour life test. E14 (temperature protection) appeared intermittently on all units; E11 (overcurrent alarm) appeared on Sample 2# at end of test. No structural or appearance failures detected. |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-06-28 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-06-28 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-06-28 |
| Form No. | BTK-R-Q142/AO | |
Frequently Asked Questions
How many hours does the ETENWOLF S7 tire inflator endurance test run?
The S7 finished-product life test requires each sample to accumulate 20 cumulative hours of discharge operation under a 35–40 psi load. This is achieved through repeated charge–discharge cycles, with each discharge cycle lasting approximately 40–45 minutes and each recharge cycle taking approximately 4 hours.
What do the E14 and E11 error codes mean on the ETENWOLF S7?
E14 is a temperature protection code that triggers when the unit’s internal temperature exceeds a safe threshold during extended operation. It appeared intermittently on all three samples during the 20-hour aging process. E11 is an overcurrent alarm that appeared on Sample 2# at the conclusion of its 20-hour test. Neither code caused a functional failure during the endurance test period.
Did all S7 samples pass the 20-hour life test?
Yes. All 3 PCS of S7 tire inflator samples reached the 20-hour cumulative discharge target. No appearance defects were observed, and battery charge/discharge functionality remained normal throughout. The report is issued as For Reference Only (供参考) rather than a formal Pass/Fail certification under a third-party standard.
What load and conditions were used for the S7 life test?
The test was conducted at room temperature (23 °C) and 60 % relative humidity, using a 12 V power source and a tire load maintained at 35–40 psi. These conditions reflect typical real-world use to evaluate the inflator’s operational stability and reliability over its service life.
Related Products
- ETENWOLF Vortex S7 Tire Inflator — Product Page
- S7 Life Test Report — Sheet1 (Sibling Sheet)