The national standard stipulates that the standard charge retention test for lithium batteries : (IEC has no relevant standards) the battery is placed at 0.2C to 3.0/piece. And then charged to 4.2V at a constant current and voltage of 1C, with a cut-off current of 10mA. After storing for 28 days at 20℃±5℃, discharge to 2.75V at 0.2C. Next, calculate the discharge capacity, and compare with the nominal capacity of the battery, it should not be less than 85% of the initial capacity.
As a lithium battery company, we are growing rapidly with annual sales of more than 30% in a rapidly changing market.
In order to meet the ever-expanding customer demand, we have adopted a variety of supply channels, self-production and outsourcing production, setting up warehouses close to customers and other forms.
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