Should the Positive or Negative Terminal Be Connected First When Installing a Battery?

[StJayden]

When installing a battery, connect the positive terminal first, followed by the negative terminal. When removing the battery, disconnect the negative terminal first, then the positive terminal. Incorrect operation can lead to serious consequences. Below are the precautions for battery use and the replacement method: Precautions for battery use: Regularly check the electrolyte level. If it falls below the minimum level, replenish it immediately. Continued use in this state will not only accelerate the aging of internal components and shorten the battery's lifespan but may also cause an explosion. Keep the battery away from open flames and avoid sparks caused by short circuits near the battery. When charging the battery, carefully read the warning labels and remove the battery from the machine. The electrolyte, dilute sulfuric acid, is corrosive and should not come into direct contact. If electrolyte comes into contact with eyes, skin, or clothing, rinse thoroughly with clean water immediately. If electrolyte enters the eyes, seek medical treatment after rinsing. Perform regular maintenance and care for the battery. Battery replacement method: Open the engine hood, remove the red positive terminal first, then the black negative terminal. Unscrew the battery's mounting bolts and install the new battery accordingly. If the electrolyte level is low, replenish it with distilled water or a dedicated replenishing solution. During daily driving, regularly check whether the small holes on the battery cover are clear, whether the positive and negative terminals are oxidized, and whether any parts of the circuit are aged or short-circuited. If so, turn off the electrical devices.