ETENWOLF S7 Tire Inflator Battery Runtime Test Report (Full-Charge Discharge, 35–40 psi Load)

Document Overview

Key Findings The ETENWOLF S7 tire inflator completed full-charge discharge testing across 3 samples under a 35–40 psi load at room temperature, achieving a continuous runtime of 39–45 minutes per cycle with no functional failures observed. Product: S7 Tire Inflator (Air Pump) Report No.: 2025062801…

Document type: Test Report
Prepared by: Daniel Wright
Published: July 22, 2026
Last reviewed: July 22, 2026
Topics: Battery Testing

Key Findings

The ETENWOLF S7 tire inflator completed full-charge discharge testing across 3 samples under a 35–40 psi load at room temperature, achieving a continuous runtime of 39–45 minutes per cycle with no functional failures observed.

Product: S7 Tire Inflator (Air Pump)
Report No.: 2025062801
Test Dates: 2025-05-16 to 2025-06-28
Samples: 3 units (fully charged state)
Load Condition: 35–40 psi
Runtime Range: 39–45 minutes per discharge cycle
Thermal Protection (E14) Events: Intermittent, no anomaly
Verdict: For Reference Only (供参考)

Test Overview

Field	Detail
Test Title	S7 Tire Inflator — Finished Product Battery Runtime Test
Product No. / Name	Tire Inflator (Air Pump)
Model / Specification	ETENWOLF S7
Report No.	2025062801
Test Date	2025-05-16 to 2025-06-28
Sample Quantity / No.	3 PCS
Test Type	■ Reliability Test
Test Standard	Internal Control Standard
Test Purpose	Evaluate whether sample battery life affects performance and usability
Acceptance Criteria	Ensure no functional failures; observe stability and reliability

Test Equipment & Setup

Item	Detail
Test Equipment	Power supply / Load / Tire
Room Temperature	23 °C
Relative Humidity	60 %
Power Source	12 V
Load Pressure	35–40 psi
Initial Battery State	Fully charged

Test Procedure

Pre-test: Charge all 3 sample units to full capacity.
Setup: Connect each unit to a tire or equivalent load set to 35–40 psi under room-temperature conditions (23 °C, 60 % RH) with a 12 V power source.
Discharge run: Activate the inflator and run continuously under the 35–40 psi load until the battery is fully depleted.
Timing: Record the total discharge duration from start to auto-shutoff for each sample.
Monitoring: Observe and log any error codes or anomalous events during the discharge cycle.
Post-test: Inspect the exterior of each sample for physical damage or abnormalities; document all observations.

Acceptance Criteria: No functional failures; unit must exhibit stable and reliable operation throughout the discharge cycle. Thermal protection events (E14) are permissible if they resolve without lasting anomaly.

Test Data & Results

Sample ID	Test Condition	Observations
Sample 1#	Fully charged state	Post-aging test: 1. Appearance normal, no anomalies. Single discharge runtime approx. 39–45 minutes. 3. Intermittent E14 (thermal protection) events occurred during aging process — no anomaly.
Sample 2#	Fully charged state	Post-aging test: 1. Appearance normal, no anomalies. Single discharge runtime approx. 41–43 minutes. 3. Intermittent E14 (thermal protection) events occurred during aging process — no anomaly.
Sample 3#	Fully charged state	Post-aging test: 1. Appearance normal, no anomalies. Single discharge runtime approx. 40–41 minutes. 3. Intermittent E14 (thermal protection) events occurred during aging process — no anomaly.

Test Pictures: In-progress runtime testing documented; high-temperature alarm E14 captured during aging cycles.

Overall Result: S7 tire inflator battery runtime test (3 PCS) — runtime range 39–43 minutes across all samples.

Conclusion

Field	Detail
Result	For Reference Only (■供参考)
Pass / Fail	Neither Pass nor Fail formally declared — result issued for reference
Test Standard	Internal Control Standard
Test Conditions	23 °C, 60 % RH, 12 V power source, 35–40 psi load, fully charged state
Samples Tested	3 PCS
Runtime Observed	39–45 minutes per cycle (overall range across all samples)
Thermal Events	Intermittent E14 thermal protection activations — no lasting anomaly
Appearance	No external abnormalities on any sample post-test

Document Information

Role	Name (Pinyin)	Date
Tested By	Li Guanghua	2025-06-28
Checked By	Zhang Ronggui	2025-06-28
Approved By	Mai Shaoqiang	2025-06-28
Form No.: BTK-R-Q142/AO

Frequently Asked Questions

How long does the ETENWOLF S7 tire inflator battery last on a single charge?

Based on reliability testing under a 35–40 psi load at 23 °C, the S7 delivers a continuous runtime of approximately 39–45 minutes per full-charge discharge cycle. Across 3 test samples, the observed range was 39–45 minutes, with no functional failures recorded.

What is the E14 error code on the ETENWOLF S7?

E14 is a thermal protection code that activates when the S7 detects elevated internal temperatures during extended operation. During battery runtime testing, E14 events occurred intermittently across all samples during the aging process. In all cases the events resolved without lasting anomaly and are considered normal protective behavior.

What test standard was used for the S7 battery runtime test?

The S7 battery runtime test was conducted against ETENWOLF’s internal control standard. The test focused on reliability — evaluating whether battery life affects performance and usability — rather than a published external standard such as IEC or ANSI.

What conditions were used during the S7 discharge runtime test?

Testing was performed at room temperature (23 °C) and 60 % relative humidity with a 12 V power source. Each sample started from a fully charged state and was run continuously under a 35–40 psi load until the battery was fully depleted.

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