Checking and Maintaining the Electric Fence System

What happens here

The farmer replaces the battery on the fence energizer. He first disconnects the old battery, then places the fresh battery on the ground, connecting the negative terminal first, followed by the positive terminal. He confirms the energizer is working by turning it on and listening for the audible 'pop' sound, indicating that the fence is electrified. He also briefly tests the fence with a voltage tester (although the spark isn't clearly visible in the video, he confirms it's 'hot').

Goal: Ensure the temporary electric fence is powered and functioning correctly.