
I think they're good for the price but not perfect. The first downside is that they don't make separate positive and negative terminals, they come with an adapter ring to adapt to the smaller terminal. It's not ideal. They also don't come with cases. But for the price it's good again. Very odd, I bought two and one was with Phillips head screws and the other with hex head screws. Also, the hex bolt for the ring clamp was very short, about 1/4 inch long regardless of the metric equivalent. Another user claimed that his connecting bolts broke although he didn't over tighten them. Very strange. But I decided to replace the screws included in the kit. For the tie bolts I took 2 M6-1.0 x 20mm screws with burnished hex. For the screws with ring terminals I chose brass to improve electrical conductivity to increase. I was able to tell it was a 16mm Phillips head, although I wanted 12mm long and would have preferred a hex head. I have what I could find. Replacing the screws probably isn't necessary, but I chose to do it.

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