Document Overview
Key Findings All 14 basketball inflation sequences on Unit 3# of the ETENWOLF S7 electric tire inflator stopped within +0.2 PSI of the preset target pressure, confirming that the updated firmware maintains pressure accuracy within acceptable tolerance across the full basketball operating range (3–8 PSI).…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Motor Performance
Key Findings
All 14 basketball inflation sequences on Unit 3# of the ETENWOLF S7 electric tire inflator stopped within +0.2 PSI of the preset target pressure, confirming that the updated firmware maintains pressure accuracy within acceptable tolerance across the full basketball operating range (3–8 PSI).
- Product: ETENWOLF S7 Electric Tire Inflator (S7-电动充气泵)
- Unit under test: Sample 3# (产品编号/序号：3#)
- Test date: 2025-03-13
- Test lab: 磨针科技 (Mozhen Technology)
- Mode tested: Basketball mode (篮球模式)
- Pressure range covered: 3 PSI – 8 PSI (preset target)
- Total test sequences: 14
- Maximum overshoot observed: +0.2 PSI
- Minimum overshoot observed: +0.1 PSI
- All results: Within ±0.2 PSI tolerance — PASS
Test Overview
| Field | Detail |
|---|---|
| Test Type | Pressure Accuracy — Basketball Mode |
| Sheet Name | S7-蓝球精度1# (Basketball Accuracy, Unit 1 Group) |
| Report / Source File | S7充气泵-轮胎精度测试（更新软件）2025.3.13.xlsx |
| Test Date | 2025-03-13 |
| Product Model | ETENWOLF S7 Electric Tire Inflator |
| Product Code | S7-电动充气泵 |
| Manufacturer / Lab | 磨针科技 (Mozhen Technology) |
| Sample Identifier | Unit 3# (产品编号/序号：3#) |
| Software Version | Updated firmware (软件已更新) |
| Total Test Sequences | 14 |
| Inflation Mode | Basketball Mode (篮球模式) |
Test Equipment & Setup
| Parameter | Value / Description |
|---|---|
| Device Under Test | ETENWOLF S7 Electric Tire Inflator, Unit 3# |
| Firmware | Updated software version (as of 2025-03-13) |
| Operating Mode | Basketball Mode (篮球模式) |
| Pressure Unit | PSI (pounds per square inch) |
| Preset Pressure Range Tested | 3 PSI to 8 PSI |
| Starting Pressure Conditions | Variable — see individual test sequences (0, 3, 4, 5, 6 PSI start points) |
| Inflation Target (Preset) | 3 / 4 / 5 / 6 / 7 / 7.5 / 8 PSI (as specified per sequence) |
| Accuracy Measurement | Stop pressure (PSI) minus preset pressure (PSI) = deviation (差值/精度) |
| Test Object | Basketball (篮球) |
Test Procedure
- Pre-test: Confirm firmware update is applied to Unit 3#. Verify unit is in Basketball Mode (篮球模式). Record ambient conditions and unit identifier.
- Set starting pressure: Deflate or pre-inflate the basketball to the specified starting PSI for each sequence (e.g., 0 PSI, 3 PSI, 4 PSI, 5 PSI, or 6 PSI as listed per row).
- Set preset target: Enter the target stop pressure on the S7 unit as specified for each sequence.
- Initiate inflation: Start the inflator and allow it to run until the auto-stop triggers at the preset pressure.
- Record stop pressure: Read and record the actual pressure at which the unit stopped inflation (停止气压, PSI).
- Calculate deviation: Compute deviation = Stop Pressure − Preset Pressure (差值/精度, PSI).
- Repeat: Perform all 14 sequences as listed, covering the full basketball pressure operating range.
- Post-test: Inspect unit for any anomalies. Record any observed defects or abnormal phenomena in the remarks column (备注).
- Acceptance Criteria: Deviation (差值) must be within ±0.2 PSI of the preset target pressure for all sequences to constitute a pass result.
Test Data & Results
| No. (序号) | Ball Type (打球) | Inflation Range (打气值, PSI) | Stop Pressure (停止气压, PSI) | Preset Pressure (打气预设气压, PSI) | Deviation / Accuracy (差值精度, PSI) | Remarks (备注) |
|---|---|---|---|---|---|---|
| 1 | Basketball | 0–3 | 3.1 | 3 | +0.1 | Basketball Mode |
| 2 | Basketball | 3–5 | 5.1 | 5 | +0.1 | Basketball Mode |
| 3 | Basketball | 5–7.5 | 7.6 | 7.5 | +0.1 | Basketball Mode |
| 4 | Basketball | 0–6 | 6.2 | 6 | +0.2 | Basketball Mode |
| 5 | Basketball | 6–7.5 | 7.7 | 7.5 | +0.2 | Basketball Mode |
| 6 | Basketball | 0–4 | 4.1 | 4 | +0.1 | Basketball Mode |
| 7 | Basketball | 4–8 | 8.2 | 8 | +0.2 | Basketball Mode |
| 8 | Basketball | 0–5 | 5.1 | 5 | +0.1 | Basketball Mode |
| 9 | Basketball | 5–8 | 8.1 | 8 | +0.1 | Basketball Mode |
| 10 | Basketball | 0–6 | 6.1 | 6 | +0.1 | Basketball Mode |
| 11 | Basketball | 6–8 | 8.1 | 8 | +0.1 | Basketball Mode |
| 12 | Basketball | 0–7 | 7.1 | 7 | +0.1 | Basketball Mode |
| 13 | Basketball | 0–7.5 | 7.6 | 7.5 | +0.1 | Basketball Mode |
| 14 | Basketball | 0–8 | 8.2 | 8 | +0.2 | Basketball Mode |
Observations: All 14 sequences produced a positive overshoot of either +0.1 PSI or +0.2 PSI. No negative deviation (undershoot) was recorded. The unit consistently stopped slightly above the preset, which is typical for solenoid-valve auto-stop designs. The maximum deviation of +0.2 PSI was observed in sequences 4, 5, 7, and 14, all involving longer inflation ranges or higher end-point pressures. No defects or abnormal phenomena were noted in any sequence.
Conclusion
| Item | Detail |
|---|---|
| Result Summary | All 14 basketball mode inflation sequences stopped within +0.1 to +0.2 PSI of the preset target pressure. |
| Acceptance Standard | Deviation ≤ ±0.2 PSI from preset pressure |
| Pressure Range Verified | 3 PSI – 8 PSI (basketball operating range) |
| Sample Tested | Unit 3# (S7 Electric Tire Inflator, updated firmware) |
| Test Mode | Basketball Mode (篮球模式) |
| Verdict | PASS — All sequences within tolerance |
Document Information
| Role | Name (Pinyin) | Detail |
|---|---|---|
| Author / Article | Daniel Wright | Technical Writer, ETENWOLF |
| Test Lab | Mozhen Technology (磨针科技) | — |
| Source File | S7充气泵-轮胎精度测试（更新软件）2025.3.13.xlsx | |
| Sheet Name | S7-蓝球精度1# (Sheet Index 4 of 7) | |
| Test Date | 2025-03-13 | |
| Publication Date | 2026-07-11 | |
Frequently Asked Questions
What pressure accuracy does the ETENWOLF S7 achieve in basketball mode?
In basketball mode, the ETENWOLF S7 stopped within +0.1 to +0.2 PSI of the preset target in all 14 test sequences. This means the unit consistently delivers pressure within ±0.2 PSI of the target, covering the full basketball range from 3 to 8 PSI.
Does the S7 inflator overshoot or undershoot the target pressure for basketballs?
In this test series, the S7 showed a slight positive overshoot only — between +0.1 and +0.2 PSI — across all 14 sequences. No undershoot was recorded. This marginal overshoot is consistent with how solenoid-based auto-stop systems operate and remains well within the accepted ±0.2 PSI tolerance.
Which firmware version was used in this basketball accuracy test?
This test was conducted using the updated software version applied as of 2025-03-13. The test was specifically designed to validate pressure accuracy after the firmware update, and all results confirmed the unit passed with the new software.
How many test sequences were run for the S7 basketball accuracy test on Unit 3#?
14 sequential inflation tests were performed on Unit 3#, covering starting pressures from 0 PSI and target end-points ranging from 3 to 8 PSI. Every sequence used Basketball Mode and all 14 passed within the ±0.2 PSI tolerance.
Related Products
- ETENWOLF S7 Electric Tire Inflator — Product Page
- S7 Tire Pressure Accuracy Test — Unit Group 1# (S7-轮胎精度1#)
- S7 Tire Pressure Accuracy Test — Unit Group 2# (S7-轮胎精度2#)
- S7 Bicycle Tire Accuracy Test — Unit Group 1# (S7-自行车精度1#)
- S7 Bicycle Tire Accuracy Test — Unit Group 2# (S7-自行车精度2#)
- S7 Basketball Accuracy Test — Unit Group 2# (S7-篮球精度2#)