The lithium battery pack is divided into four parts: processing, assembly, testing and packaging. Packaging means packaging and assembly. In the lithium battery pack, the unassembled battery that can be directly used is called the battery cell, and only the finished battery pack with charging and discharging function is called the lithium battery pack.

Lithium battery pack refers to the combined battery, which is the process of connecting single lithium batteries in series and parallel to form a certain voltage and capacity, and then installing protective plates to charge and discharge the finished lithium batteries. During the processing of lithium battery pack, it is necessary to test its performance and appearance.

In the packaging test of lithium battery, the elastic microneedle module has excellent conductivity. When transmitting a large current, it can carry the current within the range of 1-50A and maintain a stable overcurrent. The voltage is constant and the current is basically not attenuated. In the field of small pitch, it can maintain a stable connection, can cope with the pitch value between 0. 1.5 mm-0.4 mm, and has strong adaptability and reliable performance.