DeoxIT Battery Cleaner & Protectant, Cleans, rejuvenates, and protects battery connections, 115 grams, brush can. DeoxIT Battery Cleaner & Protectant is a semi-fluid material specifically made for automotive, RV, and marine batteries. This product will coat the battery posts and clamps, protecting and lubricating the same, and ensuring good power flow when it is needed most. The product removes oxidation, and seals up connections, protecting from future corrosion.