How can battery corrosion be cleaned?

How can battery corrosion be cleaned?

• A. Water and brush
• B. With a battery cleaning solution and brush
• C. Soap and water
• D. Acetone

Answer: (B)

Corrosion on battery terminals comes from the electrolyte reacting and forming a crust that can hinder electrical connection. The best way to clean it is using a battery cleaning solution paired with a brush. The cleaning solution is formulated to neutralize the caustic residue and dissolve the crust, while the brush provides the mechanical action to lift and remove the deposits without damaging the terminals. Rinsing with plain water or washing with soap and water may remove some surface grime but won’t neutralize the corrosive residue, and it can leave moisture that prolongs corrosion or create a short risk. Acetone isn’t appropriate here either; it won’t neutralize the alkaline buildup and is flammable, which adds unnecessary risk in a battery area. For safety, disconnect the battery (negative first, then positive), wear eye protection and gloves, work in a well-ventilated area, apply the cleaning solution and scrub with the brush, then rinse and dry the terminals, and apply a corrosion-inhibitor if available.

Corrosion on battery terminals comes from the electrolyte reacting and forming a crust that can hinder electrical connection. The best way to clean it is using a battery cleaning solution paired with a brush. The cleaning solution is formulated to neutralize the caustic residue and dissolve the crust, while the brush provides the mechanical action to lift and remove the deposits without damaging the terminals.

Rinsing with plain water or washing with soap and water may remove some surface grime but won’t neutralize the corrosive residue, and it can leave moisture that prolongs corrosion or create a short risk. Acetone isn’t appropriate here either; it won’t neutralize the alkaline buildup and is flammable, which adds unnecessary risk in a battery area.

For safety, disconnect the battery (negative first, then positive), wear eye protection and gloves, work in a well-ventilated area, apply the cleaning solution and scrub with the brush, then rinse and dry the terminals, and apply a corrosion-inhibitor if available.