arun_fixit AR

stuck on cleaning corroded battery terminals

moving into an older place has meant learning how to clean corroded battery terminals fast. i've already tried the obvious supermarket stuff with no luck. what would you try next? thanks in advance.
clean corroded battery
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ankita_fixit Oct 30, 2026
arun_fixit
Negative cable off first, then positive. A tablespoon of baking soda in a cup of water, pour or brush it over the terminals, it fizzes while it neutralises the acid. Scrub with a wire brush or an old toothbrush, rinse with a little clean water and dry. Put it back positive first, then negative, and smear a thin layer of petroleum jelly or terminal grease on so it doesn't crust up again so fast.
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