20pcs Battery Terminal Cover Silicone Battery Terminal Protector Boot Fit for 10 AWG - 4 AWG Wire Terminal for Power Junction Block Automotive Car Truck

Used a single red one on my sons 2004 Jeep Liberty. I fed 0/1 wire through it with plastic wire loom all wrapped up. I did cut the first half inch off it ti accommodate the large diameter of the wire loom. It covered the alternator bolt well. Didn't click lock down but that's alright.

Used to rewire my warn winch, insulation was needed because 0 gauge is tough to pack inside the bridge!

Fits over wing nuts and odd-shaped terminals due to softness. Be careful not to puncture but overall a good cover

It did exactly what I needed for my application. Two pictures are of 1/0 welding cable and two are of 2 gauge battery cable. Both use crimped 5/16 lugs. The battery has M8 bolts and the two small covers came with the batteries. I trimmed about 1/8” off the cable end of the covers to fit the 1/0 cable.

these are huge. They're for covering entire battery lugs or super Big terminals. I thought I could use them to cover my starter lugs which are 3/8 but they are way oversized. Loose and floppy. I don't know if a 3/4 terminal exists, but I'd use these for that.

These really do the trick. If you have devices you want to hook up to a battery without danger of a short, these are a must. They are stretchy enough to accommodate any terminal adaptors that your wires may have and they are great for just protecting the terminals themselves.

The description on the website says it will fit -1/4”, 3/8” and 5/16”. It seemed to be implied that they were shipping three sizes it it came in just one size. While it’s true that it will fit posts of those diameters it’s much too large to fit snuggly or really to make any contact at all. The inside diameter of these are approximately 3/4”. If your use case is to always have these on top of the battery with a wire passing through and the wires are routed perfectly so that they won’t lift the cover off of the terminal then these might work. But for smaller terminals they’re much too loose, especially if you want to use these to cover the terminals when the battery isn’t wired up.

worked nicely for protecting battery terminal ends and starter power wire

They are soft and easy to slide on wires. They don't break. They are just perfect. Great quality and price.

Very flexible, fits well and gives great protection 👍

Used for ebike controller and inverterWorks good as there a bit stretchy