In applications such as electric vehicles, where series-connected batteries are connected to form a high voltage, the resistance between the electrodes of the battery and the external packaging of the battery is measured to check whether the insulation resistance is adequately ensured. Furthermore, by measuring the insulation resistance between electrodes before electrolyte injection, defective products can be detected in the pre-process.

Measure the voltage:500V    Good quality threshold: 500MΩ or more, etc.