Battery tie down corrosion

cocopuff2cocopuff2 Member Posts: 6
edited April 2016 in Subaru
Has anyone other than me had a problem with corrosion of the tie down on a battery? The terminals are fine. It's just the metal plate that holds the battery in place with bolts. The paint has corroded off. I clean it up and cover it with dielectric grease. I have to do this every 4 to 6 months or so, because the corrosion keeps coming back. I had the same problem with my 2004 Subaru Legacy, and had to replace the battery holder as a result.

Does anyone know why this is happening, and how to prevent it?


  • Mr_ShiftrightMr_Shiftright Member Posts: 64,481
    It's possible your battery could be overcharging. Also some batteries react to the metals in the cable ends if they are too dissimilar in makeup.
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