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<blockquote data-quote="retrojordans" data-source="post: 7265572" data-attributes="member: 630134">Well even a &quot;300&quot; amp Iraggi may only only put out half of that while at idle, add screens, aftermarket dvd head units, HID head lights, etc...You may still be running thin on ampere output thus requiring batteries to draw from...The other explanation is that 90% of people are just flat out misinformed..Say your car&#039;s electronics use 200 amps. You run an Iraggi &quot;300amp&quot; alt that put out 180a @ idle..Sitting in the parking lot idling you are already drawing from your batteries....This is why people run 2, 3, 4, sometimes even 5 or more alternators because batteries should be a last resort. An alternator puts out a steady minimum and maximum power output due to a voltage regulator, a battery&#039;s voltage can drop drastically when put under strain ultimately leading to voltage drop, the #1 cause of blown stereo components, and blown, useless batteries for that matter..It&#039;s the alternator&#039;s job to run this ****...Remember lol in a stock car all the battery does is start the car....Headlights, wipers, radio, fuel pump, guages, AC, EVERYTHING electric gets it&#039;s power from the alternator..The only reason to have 20 batteries is because at a certain point you either can&#039;t fit 5+ alts under the hood, or you don&#039;t have the actual horsepower to turn all those alts lol...It takes a lot of engine to rev 6x 350a alts...Plus like I said most people with battery banks are competitors, and while competing in some classes your car must be turned off....No alternator running when the car is off obviously so your system is totally reliant on the battery bank.</blockquote>

[QUOTE="retrojordans, post: 7265572, member: 630134"] Well even a "300" amp Iraggi may only only put out half of that while at idle, add screens, aftermarket dvd head units, HID head lights, etc...You may still be running thin on ampere output thus requiring batteries to draw from...The other explanation is that 90% of people are just flat out misinformed.. Say your car's electronics use 200 amps. You run an Iraggi "300amp" alt that put out 180a @ idle..Sitting in the parking lot idling you are already drawing from your batteries....This is why people run 2, 3, 4, sometimes even 5 or more alternators because batteries should be a last resort. An alternator puts out a steady minimum and maximum power output due to a voltage regulator, a battery's voltage can drop drastically when put under strain ultimately leading to voltage drop, the #1 cause of blown stereo components, and blown, useless batteries for that matter.. It's the alternator's job to run this ****...Remember lol in a stock car all the battery does is start the car....Headlights, wipers, radio, fuel pump, guages, AC, EVERYTHING electric gets it's power from the alternator.. The only reason to have 20 batteries is because at a certain point you either can't fit 5+ alts under the hood, or you don't have the actual horsepower to turn all those alts lol...It takes a lot of engine to rev 6x 350a alts... Plus like I said most people with battery banks are competitors, and while competing in some classes your car must be turned off....No alternator running when the car is off obviously so your system is totally reliant on the battery bank. [/QUOTE]

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