Today i had Pioneer DEH-P9300, Diamond Audio HEX S600s, Diamond Audio M361i, Rockford Fosgate Punch 500a2 installed in my car. I used 0ga going from the battery to the fused digital distro block and 8ga going to the amp which has a 60amp fuse in the distroblock. Everything i used is ALL KnuKonceptz. Now, when my engine was off and the contact was on the digital volt meter on the distro block read 12.6. When the engine was running it read 13.9.
Sorry for the blurry pics.


Random pic of the current setup and install.

Now am i getting proper power? Is that normal voltage considering i am only running an amp for my comps which puts 125x2@4ohm. I just got the battery new, its a Die Hard Gold and it puts out 640amps. My one friend said that the 12.6 and the 13.9 is pretty low and that it might be my alternator. I seek another opinion. Any help would be greatly appreciated. Thanks!
-Jalal

 

It's always been my understanding that the car's electrical system carries about 12v when off and about 14v when running.

I don't think anything's wrong..

 

 

Typical car battery is about 12.5. The voltage regulator in the alternator usually runs 1-2 volts higher than the battery voltage in order to charge the battery and power the rest of the electrical devices in the vehicle. I wouldn't worry or complain about 13.9 volts with the engine running.

 

Both are very normal and pretty accurate.

--Don