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<blockquote data-quote="Steveopevo" data-source="post: 8464342" data-attributes="member: 604695"><p>Second Batteries still help stiffen things up.&nbsp; Alternators don&#039;t put out a constant peak output. Thats why high performance main and second batteries are also important. There will be a noticeable difference in performance and headlight dimming between the two.&nbsp; But since he already has a great main battery and a great second battery on a small system there ought not be any difference by changing it out.&nbsp; high output alternator companies and high performance battery companies will tell that both are important.&nbsp; Anybody who disagrees doesn&#039;t push there system hard enough to notice a difference. You can test this by using a meter on your system while its turned up loud enough you will see a bigger voltage drop with just a high output alternator versus a high performance main battery and or a second battery.&nbsp; Alternators don&#039;t react quick enough to offset the short voltage spike, thus decreasing system performance and increasing headlight dimming.&nbsp; It depends on how loud you play but you will see a difference.</p></blockquote><p></p>

[QUOTE="Steveopevo, post: 8464342, member: 604695"] Second Batteries still help stiffen things up. Alternators don't put out a constant peak output. Thats why high performance main and second batteries are also important. There will be a noticeable difference in performance and headlight dimming between the two. But since he already has a great main battery and a great second battery on a small system there ought not be any difference by changing it out. high output alternator companies and high performance battery companies will tell that both are important. Anybody who disagrees doesn't push there system hard enough to notice a difference. You can test this by using a meter on your system while its turned up loud enough you will see a bigger voltage drop with just a high output alternator versus a high performance main battery and or a second battery. Alternators don't react quick enough to offset the short voltage spike, thus decreasing system performance and increasing headlight dimming. It depends on how loud you play but you will see a difference. [/QUOTE]

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