ETENWOLF EV3 Tire Inflator Temperature Storage Test Report (−20 °C / 70 °C / 50 °C 94% RH)

Document Overview

Key Findings The ETENWOLF EV3 electric tire inflator passed all three temperature storage conditions — low temperature, high temperature, and high-humidity — with no appearance anomalies and normal startup performance after each exposure. Product: EV3 Electric Tire Inflator Report No.: 2025041501 Test Date: 2025-04-15 Samples:…

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

Key Findings

The ETENWOLF EV3 electric tire inflator passed all three temperature storage conditions — low temperature, high temperature, and high-humidity — with no appearance anomalies and normal startup performance after each exposure.

Product: EV3 Electric Tire Inflator
Report No.: 2025041501
Test Date: 2025-04-15
Samples: 3 pcs
Low-Temperature Condition: −20 °C for 24 hours
High-Temperature Condition: 70 °C for 16 hours
High-Humidity Condition: 50 °C, 94% RH for 16 hours (humidification started at 40 °C)
Verdict: For Reference Only (■供参考) — unit starts and runs normally after all storage conditions

Test Overview

Field	Details
Product No. / Name	Electric Tire Inflator (电动充气泵)
Model / Type Specification	EV3
Report No.	2025041501
Test Date	2025-04-15
Sample Quantity / No.	3 pcs
Test Type	■ Reliability Test (可靠性测试)
Test Standard	Internal Control Standard (内控标准)
Test Purpose	Evaluate the reliability of samples under high and low temperature storage conditions
Manufacturer / Brand	ETENWOLF
Room Conditions	23 °C, 60% RH

Test Equipment & Setup

Item	Details
Test Equipment	Constant Temperature & Humidity Chamber (恒温恒湿箱), Charger (充电器), Power Meter (功率计)
Ambient Temperature	23 °C
Ambient Humidity	60% RH
Low-Temperature Setting	−20 °C
Low-Temperature Duration	24 hours
High-Temperature Setting	70 °C
High-Temperature Duration	16 hours
High-Humidity Temperature Setting	50 °C
High-Humidity RH Setting	94%
High-Humidity Duration	16 hours
Humidification Start Point	40 °C (humidification begins when chamber reaches 40 °C)
Power During Test	No power applied during storage phases

Test Procedure

Pre-test inspection: Visually inspect all 3 sample units; confirm appearance is free of defects and each unit powers on normally under room conditions (23 °C, 60% RH).
Low-temperature storage: Place samples in the constant-temperature chamber set to −20 °C. Store for 24 hours without applying power.
Low-temperature recovery: Remove samples from chamber; allow to recover at room temperature. Power on each unit and verify normal startup and continuous operation.
High-temperature storage: Place samples in the chamber set to 70 °C. Store for 16 hours without applying power.
High-temperature recovery: Remove samples; allow to recover at room temperature. Power on each unit and verify normal startup and continuous operation.
High-temperature high-humidity storage: Set chamber to 50 °C and 94% RH. Begin humidification when the chamber temperature reaches 40 °C. Store for 16 hours without applying power.
High-humidity recovery: Remove samples; allow to recover at room temperature. Power on each unit and verify normal startup and continuous operation.
Post-test inspection: Inspect appearance of all units for any deformation, discoloration, corrosion, or other anomalies. Test all button functions and indicator lights.

Acceptance Criteria: After all storage conditions, each sample must be capable of normal power-on and continuous operation. No appearance abnormalities are permitted.

Test Data & Results

Storage Condition	Temperature	Humidity	Duration	Power Applied	Appearance After Test	Startup & Operation	Button / Indicator Light Function
Low-Temperature Storage	−20 °C	—	24 hours	No	No abnormality	Normal startup, continuous operation	Normal
High-Temperature Storage	70 °C	—	16 hours	No	No abnormality	Normal startup, continuous operation	Normal
High-Temperature High-Humidity Storage	50 °C	94% RH	16 hours	No	No abnormality	Normal startup, continuous operation	Normal

Observations: Temperature cycle control charts were recorded during testing. Post-test inspection confirmed that all button indicator lights illuminated normally. All 3 samples (3 pcs) exhibited no appearance anomalies and could start up and sustain continuous operation after each storage phase.

Overall Test Result: EV3 samples stored in a constant-temperature chamber at −20 °C for 24 hours, at 70 °C for 16 hours, and under humidity storage for 16 hours showed no appearance abnormalities, no impact on power-on performance, and were capable of normal startup and continuous operation.

Conclusion

Item	Details
Result	■ For Reference Only (供参考)
Pass Criteria	Unit powers on and operates normally after all storage conditions; no appearance abnormality
Test Standard	Internal Control Standard (内控标准)
Storage Conditions Covered	−20 °C / 24 h (low temp); 70 °C / 16 h (high temp); 50 °C / 94% RH / 16 h (high-humidity)
Samples Tested	3 pcs — EV3 Electric Tire Inflator
Verdict	All samples started and ran normally after all three storage conditions with no appearance defects. Result is for reference only per the report classification.

Document Information

Role	Name (Pinyin)	Date
Tested By (测试)	Li Guanghua	2025-04-15
Checked By (审核)	Zhang Ronggui	2025-04-15
Approved By (核准)	Mai Shaoqiang	2025-04-15

Field	Value
Form No.	BTK-R-Q142/AO
Report No.	2025041501
Sheet	工作温度测试 (Working Temperature Test)

Frequently Asked Questions

What temperature storage conditions was the ETENWOLF EV3 tire inflator tested to?

The EV3 was tested under three storage conditions: low temperature at −20 °C for 24 hours, high temperature at 70 °C for 16 hours, and high-temperature high-humidity at 50 °C with 94% relative humidity for 16 hours. No power was applied to the units during any storage phase.

Did the EV3 tire inflator pass the temperature storage test?

The report is classified as “For Reference Only” (供参考), which means the test documents performance data rather than serving as a formal pass/fail certification. All 3 sample units showed no appearance abnormalities and started up and operated normally after completing all three storage conditions.

What standard was used for the EV3 temperature storage test?

The test was conducted against ETENWOLF’s internal control standard (内控标准). It is not referenced to a specific external standard such as IEC or ISO for this particular report.

How does high-humidity storage affect the EV3 inflator’s performance?

After 16 hours at 50 °C and 94% relative humidity (with humidification beginning once the chamber reached 40 °C), all three EV3 samples showed no appearance abnormalities. All button functions and indicator lights operated normally, and each unit was capable of normal startup and continuous operation.

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