Thread: Advice Needed: Volt difference
View Single Post
Old 04-13-2016, 12:42 AM   Thread Starter #6
CammusThread Starter
Newbie Profile Info.
Cammus's Avatar
Join Date: Oct 2014
Official Member #: 15887
Last Online: 07-12-2018 01:32 AM
Location: Reynosa, Mx
Posts: 70

Reputation Level: 7
Cammus is an unknown quantity at this point

Participation Level: 0%
Activity: 0% Activity: 0% Activity: 0%
Default Re: Volt difference

Originally Posted by Avguytx View Post
It's Ohms law. If you are working with the stock alternator and a huge amp, you're going to get a voltage drop pulling a lot of current. You say you have 0 gauge power...same for ground? Are you grounded straight to the frame for the amplifier? Are you running two batteries or one? Did you upgrade the charging cable that goes from the alternator to the battery? Did you upgrade the ground wire from the battery to the frame or at least check connections? Just because you have a "Yellow Top Optima" doesn't mean it's going to sit at 13.2v at any given point. Voltage will drop and lights will dim when you add a large amp onto a stock alternator. There's about enough there to drive the accessories on the car and not much more.
0 gauge cable for ground and battery.
Yes, grounded to the frame in the trunk (under the carpet)
One battery
Nope, I haven't done the Big 3 upgrade yet (because I wanted to know if its real that the car could get into flames if something goes wrong?) I have the wires, just need the fuse.
The lights doesn't dim neither inside the cabin.

Question: did you saw my video? The battery voltmeter does not go as low as the one in the amp. It stays between 13.4-13.8
The one to the amp goes from 13.4 to 10.9 even at low volume.
Maxima SL Elite package 04
2 12" Kicker CVR ported box
DB Drive Speed Series 900.1
Avital remote starter
Cammus is offline   Send a private message to Cammus Find more posts by Cammus Add Cammus to Your Friends list Reply With Quote top