Document Overview
Key Findings All 14 basketball inflation sequences on Unit 3# of the ETENWOLF S7 electric tire inflator passed pressure accuracy verification under updated firmware, with every measured stop pressure within ±0.2 PSI of the preset target. Product: ETENWOLF S7 Electric Tire Inflator (Unit 3#, Updated…
- 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 passed pressure accuracy verification under updated firmware, with every measured stop pressure within ±0.2 PSI of the preset target.
- Product: ETENWOLF S7 Electric Tire Inflator (Unit 3#, Updated Firmware)
- Test Mode: Basketball Mode (篮球模式)
- Pressure Range Tested: 0–3 PSI to 0–8 PSI (incremental and cumulative sequences)
- Total Test Sequences: 14
- Maximum Deviation Observed: +0.2 PSI (Sequences 4 and 5)
- Minimum Deviation Observed: 0.0 PSI (Sequence 9)
- Verdict: PASS — all stop pressures within acceptable tolerance
Test Overview
| Field | Detail |
|---|---|
| Test Type | Basketball Pressure Accuracy (Inflation Cutoff Precision) |
| Test Date | 2025-03-13 |
| Report / Sheet | S7-篮球精度2# (Sheet 7 of 7) |
| Product | ETENWOLF Vortex S7 Tire Inflator |
| Product Code / Unit | S7 — Unit 3# |
| Firmware Status | Updated Software (更新软件) |
| Sample Designation | S7-电动充气泵-2#（更新软件） |
| Manufacturer / Brand | 贝仕达克 (Beishidake / ETENWOLF) |
| Test Mode | Basketball Mode (篮球模式) |
| Product Line | Inflation Tools |
| Category | Air Pump Projects (0气泵类项目) |
Test Equipment & Setup
| Parameter | Detail |
|---|---|
| Device Under Test | ETENWOLF S7 Electric Tire Inflator, Unit 3# |
| Inflation Mode Selected | Basketball Mode |
| Pressure Unit | PSI |
| Preset Pressure Range | 3 PSI – 8 PSI |
| Starting Pressure Conditions | Various (0 PSI baseline and intermediate pressures per sequence) |
| Measurement Parameter | Stop Pressure (actual cutoff pressure when device auto-stops) |
| Deviation Calculation | Stop Pressure − Preset Pressure = Difference (保压差值) |
| Firmware Version | Updated (post-software-update build, 2025-03-13) |
| Test Ball Type | Basketball (篮球) |
Test Procedure
- Pre-Test: Confirm device firmware has been updated to the target software version. Inspect the S7 unit (3#) for physical defects. Set inflation mode to Basketball Mode on the device interface.
- Baseline Check: Record starting pressure of the basketball for each sequence (ranging from 0 PSI to 6 PSI depending on the sequence).
- Preset Entry: Input the target preset pressure (PSI) into the S7 device for each test sequence as specified in the test plan.
- Inflation: Activate inflation. The device inflates in Basketball Mode and automatically cuts off when the internal sensor detects the preset pressure has been reached.
- Stop Pressure Recording: Immediately after auto-stop, read and record the actual stop pressure displayed or measured at the valve.
- Deviation Calculation: Calculate the difference: Stop Pressure − Preset Pressure. Record in the 差值 (deviation) column.
- Repeat: Repeat Steps 2–6 for all 14 test sequences covering the full basketball pressure range.
- Post-Test Observation: Note any anomalies or potential defects in the remarks column (备注).
Acceptance Criteria: The stop pressure must fall within an acceptable tolerance of the preset pressure. All deviations recorded in this report are ≤ ±0.2 PSI, which is within the defined pass threshold for basketball inflation accuracy.
Test Data & Results
| No. | Ball Type | Inflation Range (PSI) | Stop Pressure (PSI) | Preset Pressure (PSI) | Deviation (PSI) | Remarks |
|---|---|---|---|---|---|---|
| 1 | Basketball | 0–3 | 3.1 | 3 | +0.10 | Basketball Mode |
| 2 | Basketball | 3–5 | 5.1 | 5 | +0.10 | Basketball Mode |
| 3 | Basketball | 5–7.5 | 7.6 | 7.5 | +0.10 | Basketball Mode |
| 4 | Basketball | 0–6 | 6.2 | 6 | +0.20 | Basketball Mode |
| 5 | Basketball | 6–7.5 | 7.7 | 7.5 | +0.20 | Basketball Mode |
| 6 | Basketball | 0–4 | 4.1 | 4 | +0.10 | Basketball Mode |
| 7 | Basketball | 4–8 | 8.1 | 8 | +0.10 | Basketball Mode |
| 8 | Basketball | 0–5 | 5.1 | 5 | +0.10 | Basketball Mode |
| 9 | Basketball | 5–8 | 8.0 | 8 | 0.00 | Basketball Mode |
| 10 | Basketball | 0–6 | 6.1 | 6 | +0.10 | Basketball Mode |
| 11 | Basketball | 6–8 | 8.1 | 8 | +0.10 | Basketball Mode |
| 12 | Basketball | 0–7 | 7.1 | 7 | +0.10 | Basketball Mode |
| 13 | Basketball | 0–7.5 | 7.6 | 7.5 | +0.10 | Basketball Mode |
| 14 | Basketball | 0–8 | 8.1 | 8 | +0.10 | Basketball Mode |
Observations: All 14 sequences recorded a positive deviation (over-pressure) at cutoff, indicating the S7’s pressure sensor consistently stops inflation marginally above the preset value. The maximum positive deviation is +0.20 PSI, observed in sequences 4 and 5 (6 PSI and 7.5 PSI presets respectively). Sequence 9 achieved exact cutoff at the preset of 8 PSI with zero deviation. No negative deviations (under-inflation) were recorded. No defects or abnormal phenomena were noted in any sequence.
Conclusion
| Item | Detail |
|---|---|
| Result Summary | All 14 basketball inflation sequences stopped within ±0.2 PSI of the preset target pressure |
| Standard / Mode | Basketball Mode — internal firmware pressure cutoff logic |
| Test Conditions | Basketball inflation, PSI unit, presets ranging 3–8 PSI, starting pressures 0–6 PSI, updated firmware |
| Samples Tested | 1 unit — S7 Unit 3# (Updated Firmware) |
| Maximum Deviation | +0.20 PSI (Sequences 4 and 5) |
| Minimum Deviation | 0.00 PSI (Sequence 9) |
| Verdict | PASS |
Document Information
| Role | Name | Detail |
|---|---|---|
| Author / Tester | Daniel Wright | Translated and structured from source file: S7充气泵-轮胎精度测试（更新软件）2025.3.13.xlsx |
| Brand | 贝仕达克 / ETENWOLF | Beishidake — ETENWOLF Group |
| Source File | S7充气泵-轮胎精度测试（更新软件）2025.3.13.xlsx | Sheet: S7-篮球精度2# (Index 7 of 7) |
| Test Date | 2025-03-13 | — |
| Article Date | 2026-07-10 | — |
Frequently Asked Questions
What pressure accuracy does the ETENWOLF S7 achieve in Basketball Mode?
In the updated firmware Basketball Mode, the S7 stops inflation within ±0.2 PSI of the preset target. Across 14 test sequences ranging from 3 to 8 PSI, all deviations were between 0.00 and +0.20 PSI, with most sequences showing only +0.10 PSI over the preset — well within acceptable tolerance for sports ball inflation.
Does the S7 ever under-inflate a basketball when using the preset mode?
No under-inflation was recorded in this test series. All 14 sequences produced a stop pressure equal to or slightly above the preset value. The device consistently errs on the side of a marginal over-pressure (maximum +0.20 PSI) rather than under-filling, which helps maintain ball firmness after the needle is removed and slight air loss occurs at disconnection.
What PSI range does the S7 support for basketball inflation?
The S7’s Basketball Mode covers the standard basketball pressure range of 3 PSI to 8 PSI. This test validated presets at 3, 4, 5, 6, 7, 7.5, and 8 PSI — covering both NBA-regulation pressure (7.5–8.5 PSI) and lower recreational settings. All tested presets were met accurately by the updated firmware.
How does the updated firmware affect the S7’s pressure cutoff performance for basketballs?
This report specifically tests Unit 3# with updated firmware. The results show consistent and tight pressure control, with 12 out of 14 sequences deviating by only +0.10 PSI and one sequence achieving perfect 0.00 PSI deviation. The updated firmware appears to deliver reliable and repeatable cutoff accuracy across the full basketball pressure range.
Related Products
Explore other precision test reports and products in the ETENWOLF S7 series:
- ETENWOLF Vortex S7 Tire Inflator — Product Page
- S7 Tire Pressure Accuracy Test — Unit 1# (S7-轮胎精度1#)
- S7 Bicycle Pressure Accuracy Test — Unit 1# (S7-自行车精度1#)
- S7 Basketball Pressure Accuracy Test — Unit 1# (S7-蓝球精度1#)
- S7 Tire Pressure Accuracy Test — Unit 2# (S7-轮胎精度2#)
- S7 Bicycle Pressure Accuracy Test — Unit 2# (S7-自行车精度2#)