Document Overview
Key Findings The C2PV inflation pump passed high/low temperature charge tests at 45°C and 0°C but failed the low-temperature discharge test at −20°C, triggering error code E13 (low-temperature protection), indicating that discharge performance at −20°C requires optimization. Product: C2PV Inflation Pump Report No.: 2025110101 Test…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The C2PV inflation pump passed high/low temperature charge tests at 45°C and 0°C but failed the low-temperature discharge test at −20°C, triggering error code E13 (low-temperature protection), indicating that discharge performance at −20°C requires optimization.
- Product: C2PV Inflation Pump
- Report No.: 2025110101
- Test Date: 2025-11-01
- Samples: 2 PCS (C2PV-5#, C2PV-6#)
- Test Type: Reliability Test — Working Temperature
- Standard: Internal Control Standard
- Charge Range Tested: 0°C to 45°C
- Discharge Range Tested: −20°C to 74°C
- Overall Verdict: For Reference Only (not fully passed — −20°C discharge fails requirement)
Test Overview
| Field | Detail |
|---|---|
| Test Type | Environmental Testing — Working Temperature (Reliability Test) |
| Test Standard | Internal Control Standard |
| Report No. | 2025110101 |
| Test Date | 2025-11-01 |
| Product No./Name | Inflation Pump (充气泵) |
| Model / Specification | C2PV |
| Manufacturer / Product Line | ETENWOLF — Inflation Tools |
| Sample Quantity / ID | 2 PCS — C2PV-5#, C2PV-6# |
| Test Purpose | Evaluate the effect of high and low temperature storage conditions on the operational temperature performance of the sample |
| Test Environment | Room Temperature: 23°C, Relative Humidity: 60% |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Constant Temperature & Humidity Chamber (恒温恒湿箱) / Power Meter (功率计) |
| Room Temperature | 23°C |
| Room Humidity | 60% RH |
| Charge Test Temperature Range | 0°C to 45°C |
| Discharge Test Temperature Range | −20°C to 74°C |
| Soak Duration per Condition | 2 hours |
| Sample IDs Under Test | C2PV-5#, C2PV-6# |
Test Procedure
- Pre-Test: Place samples in the constant temperature and humidity chamber. Confirm room ambient conditions are 23°C / 60% RH before starting.
- High-Temperature Charge Test (45°C): Store samples at 45°C for 2 hours, then power on and verify that charging begins normally and current reading is normal.
- Low-Temperature Charge Test (0°C): Store samples at 0°C for 2 hours, then power on and verify that charging begins normally and current reading is normal.
- High-Temperature Discharge Test (74°C): Store samples at 74°C for 2 hours, then power on and verify that the unit operates normally in discharge mode and battery level display is normal.
- Low-Temperature Discharge Test (−20°C): Store samples at −20°C for 2 hours (report notes “−22°C” as the actual set point), then power on and record any error codes or anomalies.
- Post-Test: Return samples to room temperature, inspect for physical damage, and record all observations.
- Acceptance Criteria: Samples must operate normally at all specified environmental temperatures. Charge tests: 0°C–45°C. Discharge tests: −20°C–74°C. Any error code or failure to power on constitutes a non-conformance.
Test Data & Results
| Sample ID | Test Condition | Observations / Issue Description |
|---|---|---|
| C2PV-5#–6# | High-Temperature Charge Test — 45°C | After 2 hours storage at 45°C, unit powers on, charging display is normal, current reading is normal. |
| C2PV-5#–6# | Low-Temperature Charge Test — 0°C | After 2 hours storage at 0°C, unit powers on, charging display is normal, current reading is normal. |
| C2PV-5#–6# | High-Temperature Discharge Test — 74°C | After 2 hours storage at 74°C, unit powers on and operates normally in discharge mode, battery level display is normal. |
| C2PV-5#–6# | Low-Temperature Discharge Test — −22°C (set) / −20°C (spec) | After 2 hours storage at −20°C, unit powers on and displays E13 (Low-Temperature Protection) — discharge function unavailable. |
Observations: The high-temperature charge (45°C), low-temperature charge (0°C), and high-temperature discharge (74°C) tests all passed with normal operation. The low-temperature discharge test at −20°C resulted in error code E13 (low-temperature protection activated), meaning the sample does not meet the working temperature requirement for discharge at −20°C. Performance optimization is required for this condition.
Conclusion
| Test Condition | Standard / Requirement | Samples | Observed Result | Verdict |
|---|---|---|---|---|
| Charge — 45°C | Normal operation in specified temperature range (Internal Standard) | C2PV-5#, C2PV-6# | Normal charge, current normal | Pass |
| Charge — 0°C | Normal operation in specified temperature range (Internal Standard) | C2PV-5#, C2PV-6# | Normal charge, current normal | Pass |
| Discharge — 74°C | Normal operation in specified temperature range (Internal Standard) | C2PV-5#, C2PV-6# | Normal discharge, battery display normal | Pass |
| Discharge — −20°C | Normal operation in specified temperature range (Internal Standard) | C2PV-5#, C2PV-6# | E13 error (low-temperature protection) — discharge unavailable | Fail — For Reference Only |
| Overall | Internal Control Standard | 2 PCS | −20°C discharge performance does not meet requirement; optimization needed | ■ For Reference Only (供参考) |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-11-01 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-11-01 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-11-01 |
| Form Number (表单编号) | BTK-R-Q142/AO | |
Frequently Asked Questions
What does error code E13 mean on the C2PV pump?
E13 indicates that the pump’s low-temperature protection circuit has activated. When the battery or internal temperature drops below the safe discharge threshold (around −20°C), the firmware prevents discharge to protect battery cells from damage. This is a safety feature, not a hardware defect, but it means the unit cannot deliver inflation performance at that temperature without design optimization.
Why did the pump pass the 0°C charge test but fail the −20°C discharge test?
Charging and discharging have different electrochemical tolerances. Lithium-based batteries can accept charge at 0°C within safe limits, but discharging at −20°C causes a significant drop in cell voltage and capacity, triggering the built-in protection threshold. The 0°C charge test and the 74°C discharge test both remained within the acceptable operating window, so only the −20°C discharge condition exceeded the protection boundary.
What does “For Reference Only” (供参考) mean as a verdict?
In ETENWOLF’s internal quality system, “For Reference Only” is a third verdict option between Pass and Fail. It is recorded when results are partially non-conforming or when the test is performed for characterization rather than compliance sign-off. In this case it signals that the −20°C discharge performance data has been captured and engineering action is required, but the report is not a formal compliance rejection.
What is the specified working temperature range for the C2PV?
Based on this test, the charging operating range is 0°C to 45°C (both verified as passing), and the discharge operating range targets −20°C to 74°C. The upper end (74°C discharge) passed, but −20°C discharge did not meet requirements as of this report dated 2025-11-01. The final rated specification may be updated after performance optimization is completed.
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