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Time for a beefier alt, or do I need another battery?
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<blockquote data-quote="ThxOne" data-source="post: 8703155" data-attributes="member: 675210"><p>I am sorry that this is what you are basing your argument on. However, it is not 100% factual. I will agree with you that the alternator is a necessary part of the automotive charging system.</p><p></p><p>How many amps of current does your stock cars electronics demand to work properly from the factory?</p><p>Engine Computer, Injectors, Body Control Module, A/C System, Factory Stereo, Head Lights, Wipers, All Sensors on the Engine, All Sensors on the Body, TPMS, Fuel Pump, Oxygen Sensors...</p><p></p><p>Lets say your stock alternator is 135amps </p><p>Lets say your stock max electrical load pulls 200amps</p><p>The car still runs even though the max amp output of the alternator has been exceeded</p><p>The battery is capable of supplying the current needed to fill that deficit because that is what it is designed for... not just starting the car.</p><p>Hell, let's match the alternator, let's say the car will pull a max of 135amps. Better hope there isn't a hidden load somewhere right.</p><p>But we know it is fine even then because there are several hundred more amps of available current sitting there waiting to be used. </p><p>Now you add your aftermarket stereo with its (just for an example) 100amp load. Now you are WAY over the max output of that alternator... but the stereo still plays. Thank the lord for the stored energy in that battery.</p><p>The energy in that battery will still diminish even with the alternator charging it so to compensate, the output of the alternator is boosted higher via voltage a few volts above the resting voltage of the battery. So now you are charging your battery with a 2v 135a power supply. - In this example.</p><p></p><p>Lastly, automotive batteries weren't designed for car audio use. They are designed to run a 12v electrical system. The majority of car audio amplifiers require 14+v for their "rated" power. This is one reason that 14v and 16v batteries were invented for the car audio industry.</p><p></p><p>It is always a good idea to upgrade to a higher output alternator to help recover/charge the system quicker.</p></blockquote><p></p>
[QUOTE="ThxOne, post: 8703155, member: 675210"] I am sorry that this is what you are basing your argument on. However, it is not 100% factual. I will agree with you that the alternator is a necessary part of the automotive charging system. How many amps of current does your stock cars electronics demand to work properly from the factory? Engine Computer, Injectors, Body Control Module, A/C System, Factory Stereo, Head Lights, Wipers, All Sensors on the Engine, All Sensors on the Body, TPMS, Fuel Pump, Oxygen Sensors... Lets say your stock alternator is 135amps Lets say your stock max electrical load pulls 200amps The car still runs even though the max amp output of the alternator has been exceeded The battery is capable of supplying the current needed to fill that deficit because that is what it is designed for... not just starting the car. Hell, let's match the alternator, let's say the car will pull a max of 135amps. Better hope there isn't a hidden load somewhere right. But we know it is fine even then because there are several hundred more amps of available current sitting there waiting to be used. Now you add your aftermarket stereo with its (just for an example) 100amp load. Now you are WAY over the max output of that alternator... but the stereo still plays. Thank the lord for the stored energy in that battery. The energy in that battery will still diminish even with the alternator charging it so to compensate, the output of the alternator is boosted higher via voltage a few volts above the resting voltage of the battery. So now you are charging your battery with a 2v 135a power supply. - In this example. Lastly, automotive batteries weren't designed for car audio use. They are designed to run a 12v electrical system. The majority of car audio amplifiers require 14+v for their "rated" power. This is one reason that 14v and 16v batteries were invented for the car audio industry. It is always a good idea to upgrade to a higher output alternator to help recover/charge the system quicker. [/QUOTE]
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Time for a beefier alt, or do I need another battery?
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