This Web Site is
dedicated to educating the consumer in car audio and Dj equipment.
How To Use This Website
Let's say you want to buy a car CD
Player.
Click on Car CD Players on your left,
there you will find helpful information about Car CD Players. (Use same method
for other products)
If you have time I recommend read
every page , and at the end you will be well-informed about Car
Audio and DJ Equipment.
Ok.....
lets start from Basics.
Car Audio Electrical Basics
Car Electrical System
A vehicle's electrical consists of many parts but the ones we're interested
in are the battery, the alternator, and the power wiring. A vehicle electrical
system is a 12 volt DC system. The primary source of power when the vehicle is
not running is the battery. The primary source of power when the vehicle is
running is the alternator. This is a very important point so remember it. The
primary functions of the battery are to start the vehicle and provide power when
the vehicle is not running. Because the battery's stored power is so great it is
important to treat it with respect. It has the power to stop your heart and can burn your vehicle up if an
unfused power wire is shorted to ground. Always remember to disconnect the
negative battery cable before doing any work on a stereo system.
Adding a Second Battery
Many people are under the impression that adding a second battery will cure their electrical problems. If one battery is good then two must be better. Right? Wrong. Remember that the function of a battery is to start the vehicle and to provide power when the vehicle is not running. The only thing a second battery will help you with is "parking lot" listening time. Basically it will provide you the additional capacity to run your stereo longer without starting the vehicle. After the vehicle is started the second battery becomes another load on an already overworked alternator. If you do replace your battery I would recommend getting one from Optima or one of the other specialty battery manufacturers such as Stinger, Lightning Audio or Rockford
Fosgate.
Upgrading Your Alternator
Frequent dead batteries are a good indication that your electrical system isn't keeping up and you may need to upgrade your alternator. Doing so will give you more juice to run all of your electrical components, including your stereo system, without looking to the battery for help. The problem is your alternator is undersized for your new electrical requirements and has to look to the battery to provide the extra power, resulting in shortened battery life. Have a qualified technician verify this before investing in a larger alternator. Hopefully you can find a larger alternator from your vehicle's manufacturer that will interface with your existing system. Consult the manufacturer or the local dealer to find out about this. If not then you can look to the aftermarket manufacturers to see what is available.
Power Capacitors
Another solution is to add a power or "stiffening" capacitor. This device acts as an electrical storage "buffer". It stores power until needed for high electrical demands such as heavy bass notes. If your headlights dim when you have your stereo cranked then you may benefit from one of these. This is most noticeable when music with a heavy beat is played. Your headlights will dim to the beat.
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