Cleaning And Checking Batteries Externally

Fig 1: Identifying Battery

Courtesy of VOLVO CARS OF NORTH AMERICA.

Cleaning 

• Remove the battery from the car. Always disconnect the negative terminal first to prevent sparking
• Check that the battery is clean. Dirt can cause leakage currents between the battery posts
• Wash the battery using water. A mild cleaning agent can be used if necessary. Ensure that no dirt or water penetrates any of the cells
• Wipe clean and dry.

External checks 

• Check the battery for signs of the following damage and remedy as necessary:
  • Dirty or loose posts
  • The battery is not secure and is loose in the engine compartment or cargo compartment
  • Worn, oxidized or damaged battery leads.

• Discard the battery if any of the following faults are found:
  • Cracked container
  • Leakage
  • Bent, loose or damaged terminals
  • Battery damaged by freezing.

• Reinstall the battery in the car after checking it. Connect the positive terminal first
• Check that the battery is secure in the engine compartment or cargo compartment.