I need the piece that connects the power cable to the positive terminal on my battery. It's stripped and not tight and Im worried the power cable will slip off the terminal. I would like to get a high quality double cable one that I can also attach a power cable to an amp to also. Anybody have a good source or website to buy one of those things from?

 

Depends on the style you're looking for. The nicest ones I've seen usually come from car audio manufacturers. Ones that work just fine can be found at any parts store.

 

^this. Seconded.

 

Sometimes you may be required to lengthen the cable, or replace it with a longer one in order to reach the battery posts with the new terminals.

 

I have one of these in my car



https://www.crutchfield.com/p_12048B...-Terminal.html







Works well.