I've had good luck with using these oil impregnated discs and also keeping a thin layer of fluid film things. Amazon.com: 12 Pieces Battery Terminal Anti Corrosion Washers Fiber Battery Terminal Protector, 6 Red and 6 Green: Automotive
12 Pieces Battery Terminal Anti Corrosion Washers Fiber Battery Terminal Protector(Green, Red)
$6 USD on Amazon
Fiber battery washers set: it can prevent corrosion around the battery terminals, prolong battery life, for use with 6 and 12-volt battery
Apply to: these battery terminal protector can use for both top post batteries or cables and side post batteries or cables
Flexible size: inner ring can be removed to fit larger terminals, outer ring diameter is approx. 44 mm/ 1.73 inch; Inner ring diameter is approx. 20 mm/ 0.79 inch; Diameter of inner ring after dismantling: approx. 30 mm/ 1.18 inch (Please allow slight dimension difference due to different manual measurement.)
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Joined·5,230 Posts
Had good experience with a similar product that’s available at your local Walmart -
I used to install these. But I've seen them covered in corrosion too.
I usually dont have much problem with battery terminal corrosion here in semi arid south Texas. It seems to occur when a battery gets old. Its holding a charge for now, but I doubt it will be acceptable for the summer with the AC running full blast for hours at a time. -
I got those too. Didn’t add anything to them though
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