In the video, a man is seen holding a tool in his hand, which he uses to measure the voltage of a battery. The battery is connected to a device that is displaying the voltage reading. The man then proceeds to use a different tool to measure the current of the battery. Throughout the video, the man is seen carefully monitoring the readings on the devices, ensuring that they are accurate. The video provides a clear demonstration of how to measure the voltage and current of a battery using specialized tools.