How to Loosen the Negative Terminal of a Car Battery?

[DiHarley]

Here are the steps to loosen the negative terminal of a car battery: 1. Unscrew the two fastening buttons of the heat insulation cover, then lift the red and black insulation caps on the positive and negative terminals (red for positive, black for negative). 2. Use a wrench to loosen the fastening nut on the negative terminal of the battery, then gently pry open the fastening block with a flat-head screwdriver to remove the negative terminal. Here is some related information about car batteries: 1. The negative terminal of the car is connected to the car body, which is made of metal. The entire car body acts as the negative terminal, meaning the car body itself can be considered the negative terminal. 2. Most disassembly tools are made of metal. If a metal tool touches a metal part of the car body, the positive and negative terminals may directly connect, forming a circuit. This can cause the electrode to melt, potentially damaging the battery or even leading to a fire.