[RedEye]

Hey Guys, Having some trouble with my voltage and my battery getting drawn down, especially on night drives with headlights. Did all the usual tests, alternator and battery are both new (less than 4K miles), and both tested fine.

I have a GM single wire (yes on a SB Ford) alternator and the wire which runs from the alternator to the to a Red Top Optima battery is a #8 stranded copper.

My starting cables that run directly from the battery were custom made from welding cable, so I know these have tremendous capacity. I'm wondering if the charging wire is too small.

What size charging wire do you guys have on your builds? Any recommendations?