Capacity Testing

Cell capacity is measured under defined charging and discharging conditions to confirm that the tested samples meet the required capacity range. Capacity data can also be used during cell grading to reduce performance differences within a battery pack.

Voltage Consistency Check

Open-circuit voltage is checked to identify abnormal cells and evaluate voltage consistency within the selected batch. Cells intended for the same battery pack should be grouped within an appropriate voltage range before assembly.

Internal Resistance Matching

Internal resistance is evaluated because large differences between cells may lead to uneven voltage drop, heat generation and usable capacity during pack operation. Cells with similar characteristics can be selected for more consistent pack performance.

Appearance Inspection

Cell surfaces, tabs, edges and packaging are inspected for visible damage, deformation, leakage, corrosion or other abnormalities. Key dimensions may also be checked against the confirmed specification before packing or battery pack integration.

Batch Traceability

Cell model, batch information, inspection records and order-related data are organized to support product identification and follow-up communication. Clear batch management also helps customers maintain consistency during sample approval and repeat purchasing.

Sample Validation Before Volume Order

Customers can evaluate sample cells or a prototype battery pack before confirming a volume order. Sample validation may include capacity, discharge performance, fit, BMS compatibility and application-level testing according to the project requirements.