LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Charging System Question

Thread Tools
 
Search this Thread
 
Old Jan 12, 2013 | 05:13 PM
  #1  
steveman0018's Avatar
Thread Starter
On The Tree
 
Joined: Jan 2008
Posts: 193
Likes: 0
Default Charging System Question

Hey Guys,

A year ago, i was in a rush and my delco battery died. Pepboys only had a pro start battery in stock and bought it. Well it died this morning. Now car was sitting for 6 days in 30-40 degree weather and I know that can play a role on the car but I also have a Van with a Bosch battery sitting that same amount of time and it started right up.

So i was reading pep boy pro start are crap so i went ahead and bought a red top. I decided though to check the charging system with a volt meter. Tell me if this is normal. When I start the car, it reads 14.4-14.4 volts. I will let it run for a few minutes and then start putting a load (ac full blast, defroster, stereo, and heated seats). The voltage will drop to 13.3 and sometimes get as low as 12.8. Turning these off, the car will stay at 13.5-13.6. When driving on the highway with the stereo on i will see the voltage change anywhere from 12.6 to 13.7.

Is this normal or do i have a regulator on the way out
Reply
Old Jan 12, 2013 | 05:22 PM
  #2  
smokin06impala ss's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: May 2009
Posts: 733
Likes: 0
From: Mission,Tx
Default

Great choice of battery . I have the yellow top going on two years and has been working great.
Reply
Old Jan 12, 2013 | 09:27 PM
  #3  
lVloses's Avatar
TECH Regular
iTrader: (1)
 
Joined: Mar 2012
Posts: 462
Likes: 3
From: Lincoln, NE
Default

I have a 1500W sound system and I will drop down into low 12s at a stop light. If you want you can do the Big 3 and you should see better charging. Otherwise I don't think your car is any worse off than mine.
Reply




All times are GMT -5. The time now is 10:51 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE