1. Observe the appearance of the lithium ion battery
The fineness and cleanliness of the appearance of lithium-ion batteries can still have some feedback on its quality and workmanship. The overall appearance of a well-made lithium-ion battery must be regular, and the material and workmanship are the same. Because lithium-ion batteries want to ensure their own safety and quality, only the use of sophisticated equipment can be used in the production process to avoid differences in material components and shapes that affect quality.
2. Check the hardness of the lithium ion battery
You can gently pinch or pinch the middle part of the lithium-ion battery by hand or with a tool. If the hardness of the lithium-ion battery is moderate, and there is no soft squeeze feeling, it proves that the cell of the lithium-ion battery is a relatively high-quality cell.
3. Test the internal resistance and maximum discharge current of lithium-ion batteries
One of the fastest ways to check the quality of lithium-ion batteries is to test the internal resistance and maximum discharge current of the lithium-ion batteries. Good quality lithium-ion batteries have very low internal resistance and large maximum discharge current. Use a multimeter to directly short-circuit the two electrodes of the lithium-ion battery. The current should generally be within a certain value or even higher. At the same time, the lithium-ion battery that can maintain a relatively stable period of time is generally a good-quality lithium-ion battery.
4. Observation of continuous discharge of lithium ion battery
In the process of charging the lithium-ion battery, continue to discharge for about ten minutes. If the poles of the lithium-ion battery are not hot, it proves that the protection system of the lithium-ion battery is relatively complete. Under normal circumstances, the quality of lithium-ion batteries with a high-quality battery protection system is not too bad.
5. Sense the weight of lithium-ion battery
Remove the outer packaging of the lithium-ion battery to see if the weight of the battery is heavy. If its weight has a certain sense of heaviness, it is a high-quality battery.
Lithium-ion batteries with poor capacity are usually not durable. The specific performance is that the power consumption is very fast and the time required for charging is shortened. When charging, the charger will show that it is full when it is not fully charged in the usual charging time. However, in actual use, doing the same thing, the battery depletion time is faster than before.
Post time: Nov-19-2020
