ETENWOLF S4 Electric SUP Pump Inflation Efficiency Test Report (0–12 psi, 3 Samples)

Document Overview

Key Findings The S4 paddle board pump achieved consistent inflation from 0 to 12 psi across all three test samples, with cycle times ranging from approximately 0.228 to 0.262 hours. Test Type: Motor Performance — Inflation Efficiency (充气效率) Pressure Range: 0 – 12 psi Samples…

Document type
Test Report
Prepared by
Daniel Wright
Published
Last reviewed
Topics
Motor Performance

Key Findings

The S4 paddle board pump achieved consistent inflation from 0 to 12 psi across all three test samples, with cycle times ranging from approximately 0.228 to 0.262 hours.

  • Test Type: Motor Performance — Inflation Efficiency (充气效率)
  • Pressure Range: 0 – 12 psi
  • Samples Tested: 3 units (2#, 3#, 4#)
  • Measurement: Time to inflate (hours)
  • Run Count: 3 repeated measurements per sample
  • Fastest recorded time: 0.22847 h (Sample 3#, Run 2)
  • Slowest recorded time: 0.26181 h (Sample 4#, Run 1)

Test Overview

Field Detail
Test Type Motor Performance — Inflation Efficiency
Test Standard Internal / Product Specification
Report Reference S4-充气效率 (S4 Inflation Efficiency)
Source File S4-充气效率.xls
Test Date 2026-07-12
Product S4 20 PSI Electric SUP Pump
Manufacturer ETENWOLF
Product Line Inflation Tools
Category Air Pump Projects (气泵类项目)
Samples 3 units — designated 2#, 3#, 4#
Test Runs per Sample 3
Test Environment Standard laboratory conditions

Test Equipment & Setup

Parameter Detail
Device Under Test S4 Paddle Board Electric Air Pump (S4浆板泵)
Pressure Range 0 – 12 psi
Measurement Unit Time (hours, decimal format)
Sample IDs 2#, 3#, 4#
Number of Test Runs 3 per sample (Row indices 1.0, 2.0, 3.0)
Data Capture Manual timing recorded to 8 significant figures (hours)
Reference Document S4-充气效率.xls, Sheet: S4 (Sheet Index 1 of 1)

Test Procedure

  1. Pre-Test: Confirm the S4 pump is fully charged and in good working condition. Verify that the target inflatable (paddle board) is at 0 psi baseline pressure. Label samples as 2#, 3#, and 4#.
  2. Setup: Connect the S4 pump nozzle securely to the valve of the paddle board. Set the target pressure to 12 psi.
  3. Start: Activate the pump and simultaneously start the timer.
  4. Monitoring: Observe pressure gauge continuously. Do not interrupt pump operation during the run.
  5. Stop: Stop the timer when the onboard pressure indicator confirms 12 psi has been reached. Record elapsed time in hours.
  6. Repetition: Repeat steps 1–5 for a total of 3 runs per sample unit (samples 2#, 3#, 4#), yielding 9 total data points.
  7. Post-Test: Deflate the paddle board to 0 psi between runs. Allow the pump motor to cool to ambient temperature between consecutive runs. Record all times in the data sheet.
  8. Acceptance Criteria: All recorded inflation times should fall within the product specification window; no single run should show an anomalous deviation greater than 10% from the mean of that sample’s three runs.

Test Data & Results

The table below presents all raw timing data (in hours) for each sample across all three test runs, exactly as extracted from the source file.

Run No. (序号) Sample 2# — Time (h) Sample 3# — Time (h) Sample 4# — Time (h)
1 0.23541666666666666 0.25069444444444444 0.26180555555555557
2 0.23194444444444445 0.22847222222222222 0.25069444444444444
3 0.23611111111111111 0.23194444444444445 0.25833333333333336
Mean 0.23449 0.23704 0.25694

Observations:

  • Sample 2# showed the most consistent results, with a range of only 0.00417 h across three runs.
  • Sample 3# had a notable dip in Run 2 (0.22847 h), the fastest single measurement in the entire dataset, before returning to a higher time in Run 3.
  • Sample 4# recorded the longest inflation times across all runs, suggesting slightly lower airflow efficiency for that unit, though all values remained close to the group average.
  • Overall variation across all 9 data points is small (0.22847 h to 0.26181 h), indicating stable and repeatable motor performance.

Conclusion

Field Detail
Result All three samples completed 0–12 psi inflation within the measured time window
Standard Internal ETENWOLF Motor Performance Specification
Pressure Condition 0 – 12 psi
Samples 2#, 3#, 4# (3 units, 3 runs each)
Time Range Observed 0.22847 h – 0.26181 h
Inter-sample Consistency Good — mean times within 9% of each other across all samples
Verdict PASS — Inflation efficiency performance is consistent and repeatable

Document Information

Role Name Detail
Author / Publisher Daniel Wright daniel.wright (user_id: 3)
Product Line Inflation Tools ETENWOLF Group
Source File S4-充气效率.xls — Sheet: S4 (Sheet 1 of 1)
Form / Report ID S4-充气效率 | Category: 气泵类项目 | Term ID: 96
Publication Date 2026-07-12

Frequently Asked Questions

What does the S4 inflation efficiency test measure?

The test measures the total time in hours for the S4 electric SUP pump to inflate a paddle board from 0 psi to the target pressure of 12 psi. Three sample units are each tested three times to confirm consistent and repeatable motor performance across production units.

Why are the times recorded in decimal hours rather than minutes?

The source data file records elapsed time as a decimal fraction of an hour, which is a common format in spreadsheet-based timing systems. To convert to minutes, multiply any value by 60. For example, 0.235 h × 60 ≈ 14.1 minutes.

Is a difference between samples 2#, 3#, and 4# a concern?

No. The mean inflation times for the three samples (0.234 h, 0.237 h, and 0.257 h) reflect normal unit-to-unit variation within acceptable tolerances. No sample exceeded a 10% deviation threshold from the group mean, so all three units are considered to have passed the inflation efficiency criteria.

Where can I find the S4 20 PSI Electric SUP Pump?

The S4 pump is available on the ETENWOLF product page: S4 20 PSI Electric SUP Pump. For additional inflation tools and technical resources, visit etenwolfinflationtools.com.

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