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Is 15.6v normal on stock?


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i have a video for yall to watch and please tell me if this is ok. i know its high but is it too high? at full tilt on the btl 18 and two Audiopipe AP1500D's strapped @1.4ohm and wangin it never droppes below 15.4V. stock GM 140 Amp Alt. the video tells u everything. thanks.

Edited by kleinteich2
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i was working on an 07 silverado tuesday that idled at 15.2 volts. maybe they're running new cars at higher voltage for better efficiency.

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Damn your lucky but i dont think thats normal

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i was working on an 07 silverado tuesday that idled at 15.2 volts. maybe they're running new cars at higher voltage for better efficiency.

it just started like 3 weeks ago. it used to idle at 14.5 and now its that. idk y.

Damn your lucky but i dont think thats normal

lol. it dont help to much as for giving me more power on the amps. the amps have a regulated power supply set at 12V. so no matter how many more volts i put through them the wont put out more power.I WANT MY MTX 1501D's BACK!!! lol

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it just started like 3 weeks ago. it used to idle at 14.5 and now its that. idk y.

lol. it dont help to much as for giving me more power on the amps. the amps have a regulated power supply set at 12V. so no matter how many more volts i put through them the wont put out more power.I WANT MY MTX 1501D's BACK!!! lol

i see no vid :peepwall:

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i see no vid :peepwall:

it up there. 1st post.

Your voltage regulator may be going bad. On really old cars they are an external device but on newer cars it's part of the internal workings of the alternator. You may want to have it looked at.

i thought that too. but if it was wouldnt the alt not be able to keep the voltage up at full tilt. i mean it dont drop below 15.4v. thats with headlights on high beams and ac on full blast. if it was going bad dont u think it would drop instantaneously from 15.6v to Bat resting voltage? it barely even budges. with what i thought would be a hell of a load.

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i thought that too. but if it was wouldnt the alt not be able to keep the voltage up at full tilt. i mean it dont drop below 15.4v. thats with headlights on high beams and ac on full blast. if it was going bad dont u think it would drop instantaneously from 15.6v to Bat resting voltage? it barely even budges. with what i thought would be a hell of a load.

Not necessarily. As far as I know it can go either way. The problem is if you continue to push higher voltage like that it could damage your battery.

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