Document Overview
Key Findings All three S7 tire inflator units completed full-battery discharge cycles within a consistent range of 39–43 minutes under a sustained 35 ± 2 PSI pressure load, demonstrating stable battery endurance across repeated runs. Test type: Battery discharge duration Load condition: 35 ± 2…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Battery Testing
Key Findings
All three S7 tire inflator units completed full-battery discharge cycles within a consistent range of 39–43 minutes under a sustained 35 ± 2 PSI pressure load, demonstrating stable battery endurance across repeated runs.
- Test type: Battery discharge duration
- Load condition: 35 ± 2 PSI continuous pressure
- Samples tested: 3 units (1#, 2#, 3#), 3 runs each
- Discharge time range: 39 – 43 minutes
- Unit 1# average: 40.3 min | Unit 2# average: 42.0 min | Unit 3# average: 40.7 min
- Overall verdict: Consistent battery performance across all units and runs
Test Overview
| Field | Detail |
|---|---|
| Test Type | Battery Discharge Duration |
| Sheet Name | 放电时间 (Discharge Duration) |
| Source File | S7充气泵-放电时间测试数据20250312.xlsx |
| Date (file) | 2025-03-12 |
| Product | ETENWOLF Vortex S7 Tire Inflator |
| Model | S7 |
| Product Line | Inflation Tools |
| Category | Air Pump / Compressor Products (0气泵类项目) |
| Number of Samples | 3 units (1#, 2#, 3#) |
| Runs per Sample | 3 |
| Total Data Points | 9 |
| Load Condition | 35 ± 2 PSI, continuous discharge |
| Starting State | Battery fully charged before each test |
Test Equipment & Setup
| Parameter | Value |
|---|---|
| Test Subject | ETENWOLF S7 Tire Inflator (bare unit) |
| Charge State at Start | Fully charged (100%) |
| Pressure Load | 35 ± 2 PSI |
| Discharge Mode | Continuous operation at set pressure |
| Measurement Parameter | Elapsed time from start to battery depletion (minutes) |
| Timing Unit | Minutes |
| Sample Count | 3 units |
| Repetitions per Unit | 3 runs |
Test Procedure
- Pre-test: Fully charge each S7 unit until the charging indicator confirms 100% capacity.
- Setup: Connect the unit to a pressure load fixture calibrated to 35 ± 2 PSI.
- Start timing: Activate the inflator and begin recording elapsed time in minutes.
- Continuous discharge: Allow the unit to operate continuously at the set pressure load without interruption.
- End point: Stop the timer when the battery is fully depleted and the unit ceases operation.
- Record: Log the elapsed discharge time (minutes) for the completed run.
- Repeat: Recharge the unit fully and repeat steps 2–6 for a total of 3 runs per unit.
- Repeat for all samples: Perform the full 3-run sequence on units 2# and 3#.
- Post-test: Compile all 9 recorded times and review for consistency across runs and units.
Acceptance criteria: Results are considered consistent when discharge times across all runs and units fall within a narrow, repeatable range with no outliers indicating premature battery failure.
Test Data & Results
| Unit No. | Run | Discharge Time (min) | Unit No. | Run | Discharge Time (min) | Unit No. | Run | Discharge Time (min) |
|---|---|---|---|---|---|---|---|---|
| 1# | 1 | 41 | 2# | 1 | 43 | 3# | 1 | 40 |
| 1# | 2 | 39 | 2# | 2 | 41 | 3# | 2 | 41 |
| 1# | 3 | 41 | 2# | 3 | 42 | 3# | 3 | 41 |
Observations:
- Unit 1# recorded times of 41, 39, and 41 minutes — average 40.3 min. The single 39-minute run is within 1 minute of the other two, indicating normal variation.
- Unit 2# recorded times of 43, 41, and 42 minutes — average 42.0 min. This unit consistently performed at the upper end of the range.
- Unit 3# recorded times of 40, 41, and 41 minutes — average 40.7 min. Highly consistent across all three runs.
- Overall range across all 9 data points: 39 – 43 minutes. Spread of 4 minutes across 9 runs is indicative of stable, repeatable battery capacity.
Conclusion
| Item | Detail |
|---|---|
| Test | Battery Discharge Duration at 35 ± 2 PSI |
| Load Condition | 35 ± 2 PSI continuous pressure |
| Starting Condition | Fully charged battery |
| Samples | 3 units × 3 runs = 9 data points |
| Discharge Time Range | 39 – 43 minutes |
| Unit 1# Average | 40.3 min |
| Unit 2# Average | 42.0 min |
| Unit 3# Average | 40.7 min |
| Overall Average | 41.0 min |
| Verdict | PASS — All units demonstrated consistent and repeatable battery discharge performance |
Document Information
| Role | Name | Detail |
|---|---|---|
| Author / Tester | Daniel Wright | ETENWOLF Test Lab |
| Source Document | S7充气泵-放电时间测试数据20250312.xlsx | |
| Sheet | 放电时间 (Sheet Index 2 of 2) | |
| Term ID | 93 | |
| Author ID | 3 | |
| Publication Date | 2026-07-10 | |
Frequently Asked Questions
How long does the ETENWOLF S7 tire inflator battery last on a single charge?
Under a continuous 35 ± 2 PSI pressure load, the S7 ran for between 39 and 43 minutes per charge across 9 test runs on 3 separate units, with an overall average of approximately 41 minutes.
What pressure load was used in the S7 discharge duration test?
The test applied a sustained pressure load of 35 ± 2 PSI throughout each discharge cycle, simulating a representative continuous inflation workload.
Were multiple S7 units tested for battery life consistency?
Yes. Three individual units (1#, 2#, 3#) were each tested across three full discharge runs. All nine results fell within a 39–43 minute window, confirming consistent battery performance across production samples.
What does the S7 discharge duration test tell us about battery reliability?
The narrow 4-minute spread across all 9 runs indicates that S7 battery capacity is stable and repeatable. No unit showed premature shutdown or significant degradation across repeated cycles, supporting confidence in the battery’s real-world endurance.
Related Products
Explore the full ETENWOLF S7 Vortex product page and related test documentation:
Additional test sheets from the same Excel workbook (S7充气泵-放电时间测试数据20250312.xlsx):
- Sheet1 — companion data sheet from the same S7 battery test file
- 放电时间 (current sheet) — S7 Discharge Duration Test Data