Battery Voltage Question - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Oct 17th, 08, 04:03 PM Thread Starter
Lifetime Gold Member
Drew
 
ddx77's Avatar
 
Join Date: Jun 2008
Location: Fort Lauderdale, FL
Posts: 1,107
Battery Voltage Question

I am installing a digital amp meter, if the battery is just sitting with nothing attached would a good reading be around 12.5?

I thought I read on another thread (which I cant find now) that it should read 14 while the car is running?

Hopefully this makes some sort of sense.

Thanks

________________________________
1st Genless again - Working on getting my 69Z28 back.
ddx77 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Oct 17th, 08, 04:15 PM
Gold Lifetime Member
Jim
 
Join Date: Oct 2007
Location: San Diego, CA
Posts: 2,717
Re: Battery Voltage Question

Battery sitting at 12.5V is OK; running at 14V is OK (it shouldn't exceed 14.5V running though) - BUT! You are installing an ammeter. That will read amps not volts. Although the 2 are related they are not the same.

67 Camaro: 454/TH400/4.10 12 bolt. Lots of options: PS/PDB/PW, tilt, tach, gauges and more. K-K + 797-Z...

"Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly and applying the wrong remedy" - Sir Ernest Benn
PowerWindows is offline  
post #3 of 7 (permalink) Old Oct 17th, 08, 04:19 PM
Gold Lifetime Member
Jim
 
Join Date: Oct 2007
Location: San Diego, CA
Posts: 2,717
Re: Battery Voltage Question

Try these threads:

https://www.camaros.net/forums/showthread.php?t=70535

https://www.camaros.net/forums/showthread.php?t=70910

https://www.camaros.net/forums/showthread.php?t=71078

67 Camaro: 454/TH400/4.10 12 bolt. Lots of options: PS/PDB/PW, tilt, tach, gauges and more. K-K + 797-Z...

"Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly and applying the wrong remedy" - Sir Ernest Benn
PowerWindows is offline  
 
post #4 of 7 (permalink) Old Oct 17th, 08, 04:23 PM Thread Starter
Lifetime Gold Member
Drew
 
ddx77's Avatar
 
Join Date: Jun 2008
Location: Fort Lauderdale, FL
Posts: 1,107
Re: Battery Voltage Question

Thanks Jim!

________________________________
1st Genless again - Working on getting my 69Z28 back.
ddx77 is offline  
post #5 of 7 (permalink) Old Oct 18th, 08, 07:58 AM
Senior Tech
Charlie
 
Join Date: May 2007
Location: Baltimore Maryland
Posts: 3,759
Re: Battery Voltage Question

The voltage meter is a much bettery way to monitor your system. An ammeter will only show you a charge or discharge of the system. The voltage meter will show you a physical condition of your system.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
67CamaroRS/SS is offline  
post #6 of 7 (permalink) Old Oct 18th, 08, 08:56 AM Thread Starter
Lifetime Gold Member
Drew
 
ddx77's Avatar
 
Join Date: Jun 2008
Location: Fort Lauderdale, FL
Posts: 1,107
Re: Battery Voltage Question

It is a voltmeter that I am installing so that is good news.

I only tested it without the car running and it was at 12.48.

Thanks

________________________________
1st Genless again - Working on getting my 69Z28 back.
ddx77 is offline  
post #7 of 7 (permalink) Old Oct 18th, 08, 09:46 PM
Senior Tech
 
Join Date: Mar 2002
Location: Austin, TX, USA
Posts: 5,277
Re: Battery Voltage Question

Running should be about 14 to 14.5. A fully charged battery will start at about 13 volts and settle to about 12 volts with no load. During cranking, the voltage should remain above 9 to 10 volts.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
dnult is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome