Let's talk voltage drops

[Drumbc]

12.4 with the car off battery is 6 months old the alt is 1 month old so everything's fairly new...... I see 14v when vehicle is cold then it drops to 13.5 when it warms up, I have done big 3..... Vehicle has no issue starting ever..... Where should I start when looking for the issue

 

[adulbrich 5,000+ posts]

12.4v isn't super low, but 12.6 is what I've seen as the standard for a fully-charged battery resting. AGM or regular vented lead acid?

Probably just need a HO alt, honestly. You could have your battery and alternator each load tested at a place like Auto Zone for free

 

[michaellane 5,000+ posts]

I like to run a higher voltage for efficiency. I like 15.0 flat. Under 14, and I start getting nervous. I know, I know, it takes a lot more drop than that to damage things.
If it's supposed to be less than 14v stock, there isn't an "issue" really. It's just not ideal for maximum audio efficiency

No its not but I dont worry about it

 

[cocoleveo7686 10+ year member]

**** my jeep charges stock at 14.8