Best Battery Terminal Cleaner

Battery terminal cleaner dissolves the crusty white/blue corrosion that builds up on lead posts and clamps — the stuff that creates resistance, slows charging, and eventually leaves you with a no-start. Most are acid-neutralizing sprays that turn the corrosion into rinseable foam. Reach for one when you see growth on the terminals or when cranking gets sluggish. Pair with a wire brush for the stubborn buildup and dielectric grease after to keep it from coming back.

Battery Terminal Cleaner

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Top brands making battery terminal cleaner