4 PCS Military Spec Battery Terminal Connectors Top Post Kit with Cover,Copper Lugs,Heatshrink and Post Washer

I installed this today (negative battery cable only for the moment) on a 2003 Corolla. I chose this design because I had two of the Advance Auto/AutoZone options where you screw the connector shut around the terminal break (the square piece got rounded and I could no longer really tighten it).The part itself is relatively easy to install, it just takes a little bit of finagling to get the two negative cables properly fed through the connector (the connector is a bit small for the thickness of the cables, but it does work).As for durability: obviously I cannot comment at this point on how it will do over the long-term, but it seems reasonably durable for the moment. I assumed (and continue to assume) that "military spec" was meaningless marketing jargon when I bought it, but it did have the overall best reviews that I could find for this style.Several of the reviews refer to this breaking/cracking. I obviously don't know what happened in these specific cases, but I suspect that in some cases it might be down to an overzealous installation. Remember that it should be totally loose when it is not latched. I would imagine that if I really cranked it down onto the terminal and THEN latched it, it absolutely would break it. I think that the latch should NOT take a lot of force to close; if it seems like you have to muscle it, I would loosen the thumbscrew and try again. Obviously get it tight enough that you can't easily pull it off the battery terminal, but I wouldn't go any tighter. I started loose and just kept tightening it, latching it, tightening it some more, and repeating until it was right. I saw no signs of overstress.In the 2003 Corolla, the fuse box gets in the way of the latch (the latch is too long). You can latch it part way with the latch handle facing up, and then rotate the handle between the fuse box and the battery and latch it the rest of the way. It's a little bit of tetris, but it definitely works fine for me.

They're a bit cheap, but they gold up fine and work pretty great for the price. I didn't use the copper connectors that came with it. They were very flimpys I don't think they would have help up. I used it to connect my amplify power wire and my front lights power. Makes a cleaner setup and safe.

They hold well fit nice connect very easy.and easy to install on the wires and batteries

a very good tool

Worried that they will loose contact because they are not solid brass. I’ll try them and see if they last and make good contact.

This was a really valuable purchase for me. It fit perfectly and was easy to install. It gives me peace of mind knowing that my connections are tight, but can be quickly released in an emergency. The bonus is that it looks great in the engine compartment.

I purchased a product similar before I made my purchase on this item here. The first one I brought wasn’t too good I could my the metal quality and weight that it wouldn’t last longer. So I returned the first one. I put this bad boy in my civic 99 si and it works great excellent quality product. Thank you!

Work well on my bass boat, as expected. Can be difficult to adjust in tighter spaces. Still a great upgrade over stacking connectors under a wing nut. Makes it easy to switch batteries when out 8 plus hours on the water running multiple electronics.