CRC Battery Cleaner with Acid Indicator (11 oz)

Water-based aerosol that neutralizes the white-blue lead sulfate crust on battery posts and cable clamps. Spray on, wait for the yellow-to-pink color shift, then rinse or wipe dry. The straw applicator provides adequate control; some product contacting the battery housing is normal at pH 8.5. Community confirms the indicator works reliably on routine maintenance-level buildup. Heavy multi-year deposits may still need a wire brush.

The right buy for routine maintenance · light-to-moderate corrosion on a battery in regular service. The color-change indicator takes the guesswork out of the reaction. Skip it for thick, heavily corroded terminals from a neglected battery; that needs mechanical cleaning regardless of the cleaner.

Signal word WARNING is from the pressurized can (H280) · not the chemistry. SDS §2 explicitly states health hazards are "Not classified." Eyes and lungs are situational due to aerosol delivery; use outdoors or with the garage door open. Skin protection is situational during the wipe-down step given the dissolved corrosion slurry. Prop 65 warning: trace 1,4-dioxane and ethylene oxide from 2-butoxyethanol production. No aquatic toxicity classification, no PFAS. The corrosion dissolved from battery terminals contains lead sulfate and lead oxide. Wash hands after handling the slurry, and avoid rinsing waste water into storm drains.