gckless 5,000+ posts
CarAudio.com Veteran
So I got my DC Power 270XP about a week ago, and installed it last Tuesday. The 1/0AWG wire I had in there as part of the big 3 wasn't long enough, so I left it off. At that time, I was getting 14.8~14.9V at idle. Just installed my 1/0AWG positive lead from alt to battery, and now I'm getting 15.4V at idle. Is voltage sitting that high bad news, or is this just what a good HO alternator should be doing, and I should be really glad?