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Combined with the moisture these fumes often corrode the battery terminals thereby deteriorating the. You can identify this type of corrosion by a bluish precipitate that forms on the terminals. Battery Terminal Corrosion Causes And Prevention In Details In case of any damage to your battery the electrolyte leakage will occur. Corroded battery terminals . Corroded battery terminals can cause several problems. During this process hydrogen gas is released through the batterys vents and mixes with particles around the battery itself. Corrosion occurs around a car batterys terminals because hydrogen gas leaks from the batterys sulphuric acid within. Disconnect the Battery Clamps. Inspect the Battery for Potential Safety Hazards. Visible corrosion on the battery terminals is one of the foremost indicators of a bad battery. 25 How to remove battery corrosion. Check the Type and Amount of Corrosion. Apply the Solution to the Terminals. It will accumulate around ...