To ensure quality, follow this acceptance protocol for incoming cells:
- Visual Inspection: Check for bulging, dents, or seal contamination. Lay a straightedge on the can to detect warping.
- Weight Measurement: Use a calibrated scale to identify outliers in the batch.
- QR Code Scanning: Log batch, serial numbers, and open-circuit voltage (OCV) to verify traceability.
- Electrical Checks: Measure OCV after rest; healthy cells should show tight voltage consistency. Test internal resistance with a four-wire meter or gentle load test.
- Terminal Inspection: Hand-thread nuts to avoid cross-threading and clean threads if needed.
- Capacity Test: Sample-test cells using the intended current/temperature, following the datasheet’s CC/CV charging guidelines.
Document all findings and compare them against vendor-provided batch reports.
This answer is sourced from Posts《lifepo4 prismatic battery cell 3.2v 100ah grade a》