1. Different voltage

In the battery industry, when the voltage increases, the corresponding output voltage will also increase, so that the power lithium battery pack can meet some high-power equipment; and the result of the direct impact of the parallel mode is to make the current of the whole battery pack increase, while the capacity is affected by the current of the output terminal, so the direct role of parallel is to make the capacity of the lithium battery pack increase, so as to The capacity of the batteries connected in this way is often larger, that is, the so-called capacity type lithium batteries.

2. Different products applied

Some large equipment need high voltage value, because the small power battery pack can't work, so we must choose the power lithium battery pack. For example, the voltage required by the electric bicycle we usually use is 48V. Compared with some situations in our life, 48V is not small. So it is necessary to use the power type lithium battery to ensure the operation of the electric bicycle. But we usually go to some large supermarkets or shopping malls, some sign lights and standby power supply. Because the power consumption of these devices is not very large, they generally use capacity lithium battery pack, which is different in the application of products.

3. Different internal resistance

The internal resistance of power type lithium battery is smaller than that of capacity type lithium battery. Take 18650 lithium battery as an example, good manufacturers with 3-fold rate discharge generally have PDC, with internal resistance of about 40; those with 5-fold rate discharge generally do not have PDC internal resistance of about 20.