Pangda 6 Pcs Battery Terminal Anti Corrosion Washers Fiber Battery Washers Terminal Protector (Green,Red)

works great

Work as expected and after several months no more corrosion has occurred. Great way to inexpensively protect your battery terminals.

Purchased this but haven't used them yet

I took a leap of faith, to try to ensure corrosion would be halted or minimized. To save $90, which my mechanical maintenance shop would charge, I purchased 3 items for about $35 to clean them myself, not really KNOWING some would help slow the process of routine corrosion (which I read) could diminish my battery charging capability. I currently need time to gauge the impact of choosing the rings, but the product appears well- made and fits my terminals. They also assist to prevent misidentifying the polarity of my terminals, & at a decent value. I cleaned and added these to my 2 cars’ batteries after cleaning the mess from the batteries & terminals. I’m pleased even if the fiber-filled felt doesn’t stop the corrosion. I also bought and applied terminal protectant spray, from CRC to terminal connections and terminals. Now that batteries have become so expensive, stopping corrosion is much more of value to me. I hope they actually help.

My vehicle has 2 batteries so this works with a spare. Beyond that it's felt so it soaks up extra battery corrosives and is colored to denote positive and negative terminals.It do what it do.

A great product for a great price.

Great product and value highly recommend it

What can I say? These are felt washers to put under the battery connectors on a vehicle. These serve that purpose. The color coding helps for instant identification when attaching a charger or jumper cables.However, I don't recall not having any of these on an auto battery over the 40 years I have been driving, and I have no idea what would really happen if they were omitted. Probably not much.