18650 lithium battery conventional chemical performance parameters (electrical performance) requirements(1) Appearance structure, visual inspection, scratch, deformation, stain, electrolyte leakage.
(2) Standard Test Bill: If there is no special requirements, it should be carried out at 20 ± 5 ° C (temperature), 65 ± 20% (humidity). The accuracy level of the current table and the voltage meter used in the test is ≤0.5
(3) Standard charging
It refers to the charging of the constant pressure 4.2V to the constant pressure 4.2V by charging of 0.5TMA current to a single cell voltage of 4.2 V, turned to constant pressure 4.2V, and the charging current is less than 20 mA to stop charging.
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