Quality Control & Testing Standards
We don’t just sell supercapacitors; we guarantee their reliability. From factory to your desk, every step is verified.
Source Authenticity
We specialize in purchasing 100% original capacitors from excess inventory.
- All products come in original factory packaging, with traceable batch codes, and are guaranteed to be in like-new condition.
Strict Inspection
Every batch undergoes rigorous Incoming Quality Control (IQC).
- Visual inspection for damage
- Dimensional checks per datasheet
- Basic electrical tests (Cap, ESR)
Performance Verified
Re-tested using professional analyzers. Capacitance, withstand voltage, ripple current test.
- Capacitance tolerance ±10%
- ESR measured at 1kHz
- Leakage current validated
3-Month Warranty
If you find quality problems, please provide a clear test video within 7 days after signing the receipt.
- The quality problem of the product non-human damage, we will replace the good product of the same model free of charge after confirmation.
Verified Performance Data
We don't just trust the datasheet; we verify every batch. Below is a sample report from our recent inspection of Maxwell 16v500f cells.
Sample Batch #2025-QC-087
| Parameter | Spec | Measured | Status |
|---|---|---|---|
| Capacitance | 500F ±10% | 502F | PASS |
| ESR @ 1kHz | ≤2.1mΩ | 1.78mΩ | PASS |
| Leakage Curr. | ≤5.2mA | 3.1mA | PASS |
| Voltage Hold | 16V | 15.28V Surge | PASS |
💬 Trusted by Engineers Worldwide
Don't just take our word for it. Here's what our partners say about our quality and service.
"Before shipping, Lia sent me the test video and internal resistance value corresponding to the serial number of each product, and with this test form, our company saved a lot of debugging time."
"I have been working in a power supply factory for more than ten years and have bought countless inventory capacitors. This store is something I have been repurchasing - the original factory is undoubtedly genuine, and the parameters are fully up to standard."
"Fast shipping and excellent packaging. Every capacitor was individually protected. When I had a question about ESR values, their technical support responded within three hour."
Ready to verify our quality for your project?
Whether you need a specific batch test report or a bulk quotation, our engineering team is ready to assist you with professional supercapacitor solutions.