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How to distinguish between low and high pressure lithium batteries
248 2023-10-30
#01 is distinguished by voltage
The voltage of lithium batteries is generally between 3.7V and 3.8V. According to the voltage, lithium batteries can be divided into low-voltage lithium batteries and high-voltage lithium batteries. The rated voltage of low-voltage lithium batteries is generally below 3.6V, and the rated voltage of high-voltage lithium batteries is generally above 3.6V. Through the lithium battery meter test, we can see that the voltage range of low-voltage lithium batteries is 2.5 ~ 4.2V, and the voltage range of high-voltage lithium batteries is 2.5 ~ 4.35V, and the voltage level is also one of the important signs to distinguish the two.
#02 Differentiate by charging method
The charging method is also one of the important signs to distinguish between low-voltage lithium batteries and high-voltage lithium batteries. Under normal circumstances, low-voltage lithium batteries use constant current charging/constant voltage charging mode; The high-voltage lithium battery uses a certain degree of constant current charging/constant voltage charging mode to ensure higher charging efficiency.
#03 Usage scenario
High voltage lithium batteries are suitable for applications with high battery capacity, volume and weight requirements, such as smartphones, tablets and laptops; Low-voltage lithium batteries are suitable for occasions where the volume and weight requirements are not high, such as power tools.
At the same time, the use of lithium batteries need to pay attention to the following matters:
1. In the process of use, special chargers should be used, and pay attention to the parameters of charging voltage and current;
2. Do not force the lithium battery to short circuit, so as not to damage the battery and cause safety problems;
3. Do not randomly select batteries for mixed use, you should select batteries with the same parameters for combined use;
4. When lithium batteries are not used, they should be stored in a cool and dry place.