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<blockquote data-quote="audioholic" data-source="post: 3124475" data-attributes="member: 549629">My newly made post on the board:&quot;It seems to be a popular idea here that too large of an alternator will fry a battery. This is simply not true.  An alternator will only output the amount of current necessary to supply the demand on it. A 200amp alt, for example, when met with a 50amp current demand, will only output 50amps. Therefore, running too big of an alt will not result in damage to your battery, your wiring, your stereo or your vehicle. If you are skeptical, consider this.... even when running a stock sized alternator, you are many times not utilizing its entire output capability (especially people not bitten with the car audio bug), and yet you do not burn up your stock battery. This is due to the voltage sensing cpability of an alternator that allows it to adjust its output to meet demands, and scale back when it should. This is basic theory on how alternators work. A quick glance at any decent reference material on the subject will confirm what I say here is true. Comments?&quot;I wonder how long it lasts.</blockquote>

[QUOTE="audioholic, post: 3124475, member: 549629"] My newly made post on the board: [I]"It seems to be a popular idea here that too large of an alternator will fry a battery. This is simply not true. [/I] [I] [/I] [I]An alternator will only output the amount of current necessary to supply the demand on it. A 200amp alt, for example, when met with a 50amp current demand, will only output 50amps. Therefore, running too big of an alt will not result in damage to your battery, your wiring, your stereo or your vehicle.[/I] [I] [/I] [I]If you are skeptical, consider this.... even when running a stock sized alternator, you are many times not utilizing its entire output capability (especially people not bitten with the car audio bug), and yet you do not burn up your stock battery. This is due to the voltage sensing cpability of an alternator that allows it to adjust its output to meet demands, and scale back when it should.[/I] [I] [/I] [I]This is basic theory on how alternators work. A quick glance at any decent reference material on the subject will confirm what I say here is true.[/I] [I] [/I] [I]Comments?"[/I] I wonder how long it lasts. [/QUOTE]

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