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Car Audio Help
Wiring, Electrical & Installation
Do I need a HO alt and/or a second battery?
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<blockquote data-quote="n2audio" data-source="post: 8379121" data-attributes="member: 540940"><p>Unless you play it at grandma volume all the time - Your alt isn't going to last long. It's that simple -- one battery or 5. A few months maybe, possibly weeks.</p><p></p><p>The extra batteries are only involved AFTER the alternator is already maxed out.</p><p></p><p>I've been running ~1500w for over 10 yrs now in 4 different cars.</p><p></p><p>The 110A alt in the 1st car held up the longest. I never had to replace it over 3 yrs or so. 110A alt in the 2nd car had to be replaced once over 3-4 yrs. 130A alt in the 3rd car got replaced twice in 3 yrs. Current car I've had for 8 mo has 160A alt which hasn't been replaced yet and shows no sign of weakness -- BARELY any dimming at full volume, all stock wiring.</p></blockquote><p></p>
[QUOTE="n2audio, post: 8379121, member: 540940"] Unless you play it at grandma volume all the time - Your alt isn't going to last long. It's that simple -- one battery or 5. A few months maybe, possibly weeks. The extra batteries are only involved AFTER the alternator is already maxed out. I've been running ~1500w for over 10 yrs now in 4 different cars. The 110A alt in the 1st car held up the longest. I never had to replace it over 3 yrs or so. 110A alt in the 2nd car had to be replaced once over 3-4 yrs. 130A alt in the 3rd car got replaced twice in 3 yrs. Current car I've had for 8 mo has 160A alt which hasn't been replaced yet and shows no sign of weakness -- BARELY any dimming at full volume, all stock wiring. [/QUOTE]
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Do I need a HO alt and/or a second battery?
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