Which Terminal Should Be Removed First When Disconnecting a Car Battery?
1 Answers
When disconnecting a car battery, the negative terminal should be removed first, followed by the positive terminal. Here are some important precautions for car battery removal: 1. Always disconnect the negative terminal before the positive terminal during removal. If the positive terminal is disconnected first, contact with the vehicle's metal body may cause a short circuit in the wiring. When installing the battery, connect the positive terminal first, then the negative terminal. 1. Improper battery removal sequence may lead to circuit loops, electrode melting risks, or even fire hazards in severe cases. 2. After battery removal, anti-theft system lockouts may occur. To prevent this, you can connect a backup battery before removing the old battery.