Menu
Forum
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Gallery
New media
New comments
Search media
Members
Registered members
Current visitors
Classifieds Member Feedback
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Register
Forum
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
Log in / Join
What’s new
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Leave car for week = dead :(
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="justafifteen" data-source="post: 7430042" data-attributes="member: 614800"><p>If it wasn't charging the battery properly, then the guy would never be able to start his car.</p><p></p><p>Check to make sure you don't have any lightbulbs on, etc -- like the light in the trunk may always be on. You most likely just have a parasitic drain like mentioned above</p><p></p><p>Also bust out a DMM and look at the voltage your battery has both with the car on and with the car off. With the car on, it should be above 13.9v and with it off, it should be above 12.5v. If it's below 13.9v with the car on, your alternator is bad. If it's below 12.5v with the car off, you need a new battery.</p><p></p><p>(Obviously, let the battery "charge" fully before checking the voltage...)</p></blockquote><p></p>
[QUOTE="justafifteen, post: 7430042, member: 614800"] If it wasn't charging the battery properly, then the guy would never be able to start his car. Check to make sure you don't have any lightbulbs on, etc -- like the light in the trunk may always be on. You most likely just have a parasitic drain like mentioned above Also bust out a DMM and look at the voltage your battery has both with the car on and with the car off. With the car on, it should be above 13.9v and with it off, it should be above 12.5v. If it's below 13.9v with the car on, your alternator is bad. If it's below 12.5v with the car off, you need a new battery. (Obviously, let the battery "charge" fully before checking the voltage...) [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Leave car for week = dead :(
Top
Menu
What's new
Forum list
