Matching amps with battery fuse...

[thatguy12 10+ year member]

Go to Google and start searching, or check BCAE1.com and read up. You can get even more expert info in hard copy format if you order the MECP Basic study guide on Amazon.com.

i appreciate the links, and thanks for the info from everyone. some say this site has gone lame but ita helped me.

 

[clickclickw00t 10+ year member]

You're protecting the wire. If the wire melts or gets clipped somewhere, or your amp (for some reason) draws over 300A of current, the wire won't burn up because it is only rated for 300A (or whatever.