Battery System: Cleaning

The following information details the recommended cleaning procedures for the battery and related components. In addition to the maintenance schedules found in this service information, (Refer to GENERAL/ MAINTENANCE SCHEDULES ) it is recommended that these procedures be performed any time the battery or related components must be removed for vehicle service .

Fig 1: Cleaning Battery Cable Terminal Clamps Using Terminal Cleaning Tool

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Clean the battery cable terminal clamps (2) of all corrosion. Remove any corrosion using a wire brush or a post and terminal cleaning tool (1), and a sodium bicarbonate (baking soda) and warm water cleaning solution.

Fig 2: Cleaning Outside Of Battery Case
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Clean the battery tray and battery hold down hardware of all corrosion. Remove any corrosion using a wire brush and a sodium bicarbonate (baking soda) and warm water cleaning solution (2). Paint any exposed bare metal.
If the removed battery is to be reinstalled, clean the outside of the battery case (3) and the top cover with a sodium bicarbonate (baking soda) and warm water cleaning solution (2) using a stiff bristle parts cleaning brush (1) to remove any acid film. Rinse the battery with clean water. Ensure that the cleaning solution does not enter the battery cells through the vent holes. If the battery is being replaced, confirm that the replacement battery is the correct size and has the correct ratings for the vehicle.
Clean the battery thermal guard with a sodium bicarbonate (baking soda) and warm water cleaning solution (2) using a stiff bristle parts cleaning brush (1) to remove any acid film.

Fig 3: Cleaning Battery Terminal Post Using Terminal Cleaner
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Clean any corrosion from the battery terminal posts with a wire brush or a post and terminal cleaner (1) and a sodium bicarbonate (baking soda) and warm water cleaning solution.