Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Need help installing a 2nd amp and trunk battery
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="forbidden" data-source="post: 5359767" data-attributes="member: 552189"><p>If you want to provide a charge to the second battery, it HAS to be grounded to either the frame OR the front battery. Car batteries are indeed DC. The amp does not draw current when it is off. Proper fusing protects the vehicle and equipment from damage. 3 fuses in total. One one power line from front battery (ideally within 18" of battery), 2nd on same power line at rear battery (this isolates the power line between the two batteries should there be a problem and should be within 18" of the second battery), the 3rd between the amp and the second back battery.</p><p></p><p>So, why are you installing a second battery? It does not produce current, it stores it only. If the stock electrical system is having trouble running the car and the audio system, adding a second battery is only going to make matters worse. The alternator runs the whole show in the car. If you are bound and determined to use a second battery, it had better be a gel cel type of battery and not a standard battery that produces gas....... that would not be a good thing on the inside of a car at all.</p></blockquote><p></p>
[QUOTE="forbidden, post: 5359767, member: 552189"] If you want to provide a charge to the second battery, it HAS to be grounded to either the frame OR the front battery. Car batteries are indeed DC. The amp does not draw current when it is off. Proper fusing protects the vehicle and equipment from damage. 3 fuses in total. One one power line from front battery (ideally within 18" of battery), 2nd on same power line at rear battery (this isolates the power line between the two batteries should there be a problem and should be within 18" of the second battery), the 3rd between the amp and the second back battery. So, why are you installing a second battery? It does not produce current, it stores it only. If the stock electrical system is having trouble running the car and the audio system, adding a second battery is only going to make matters worse. The alternator runs the whole show in the car. If you are bound and determined to use a second battery, it had better be a gel cel type of battery and not a standard battery that produces gas....... that would not be a good thing on the inside of a car at all. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Need help installing a 2nd amp and trunk battery
Top
Menu
Home
Refresh