Jumper Cable Battery Clamps Crocodile Clamp Pure Copper 100A/800A/1500A Car Battery Charger Clamps Power Replacement Battery Alligator Clips Jumper Cables Clamp (100-500A)

I used these to convert a battery charger for boats into a charger for cars. The built in screws attached to the wire eyelet ends of the boat battery charger. I used the boat battery charger because it can charge a battery that is completely dead … like mine sometimes are.

I have a TrekPow 2500A that I bought a little over a year ago. This summer I had to use it several times to jump a boat battery one weekend. The second time of ever using the jump pack the negative clamp snapped. Not surprising as they are mostly plastic. The power unit is great but the clamps should be solid metal. These clamps are perfect for the TrekPow as they are almost identical in size so they fit perfectly in the TrekPow case. Installation was simple and these certainly are much better built than the plastic clamps. Highly recommended for this use case.

My only concern is that the tabs to hold the cable is too small to secure the cable. After having it not stay connected a few times, I soidered the cable to the clamp. Problem solved, however larger tabs would not make this necessary.

Just what I needed

These are very well made. The design of the way the wiring is captured is well thought out, and the thickness and temper of the metal is more than sufficient to hold without damaging the wire. The jaws are very strong and won't be falling off any time soon. I wish I had a use for another set because I would surely buy it again.

I am pleasantly surprised by these clamps! They seem to be well made. The springs are strong enough to clamp securely to your battery. They are insulated all over so as not to easily short to each other or a nearby chassis piece. The separate eye terminals appear to be solid copper and were easily soldered onto the ends of my charger leads. I wouldn't hesitate to buy them again if the need arises.

My set only had one of the two copper crimp rings and it is easier to go buy a missing one than to return/replace w/ Amazon. So only 3 starts for poor quality control. That said, the handles are sturdy. The springs are strong. The copper is not too flimsy and the red/black insulating covers should work OK.

The set of clamps is all metal, very sturdy. I used the set of clamps to replace the broken one (plastic) of my jump start battery pack. Very simple easy job. The wires are gauge 6. I think gauge 4 would be very very tight.

Very nice set of battery charger clamps.They should do the job well.