What Causes White Frost on Battery Terminals?

1 Answers
LaDerek
07/24/25 11:38pm
White frost on battery terminals is caused by sulfuric acid solution splashing onto the battery, which corrodes the terminals, cable clamps, and mounting brackets. The reasons for the formation of these oxides are: 1. Poor quality of some batteries: Frequent jolts can cause internal acid to leak during battery use, and this acid corrodes the terminals, producing oxides. 2. Excessive charging current: This leads to significant evaporation of the internal acid, which then reacts with the terminals to produce oxides. 3. Prolonged battery use: Over time, the internal acid evaporates and slowly reacts with the battery terminals, resulting in oxides.
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