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Headlight dimming like crazy HELP!!
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<blockquote data-quote="Lasherž" data-source="post: 8705788" data-attributes="member: 679555"><p>From what I'm seeing online your car has a pretty weak alternator, 110A unless you get more detailed with the year and everything. Usually you don't need to upgrade a car's electrical until you pass 1500W, but I guess you're there if you're pushing your other speakers hard. I think upgrading the alternator will make the largest difference.</p><p></p><p>Your headlights are dimming, but modern headlights depending on what type they are require almost no voltage drop to visually see it. The reason why the caps aren't helping is because you're lacking power production, not power storage. An AGM battery will help get more power at once, so will the caps, but you said 12.1v. Is that with the car on or off? If the car was on that's an extremely low voltage and you're probably going to damage the battery/alternator eventually if you haven't already. What you need is an alternator capable of keeping up, your voltage while it's running should not be lower than 12.4v ever, not even during heavy beats, and resting should be above 13v. A bad battery can pull it down.</p><p></p><p>As popwarhomie already touched on, to do a HO alternator you'll need to upgrade your wires, but you can probably get away with just a better alternator that still fits the car, not necessarily HO. This all depends on what you've got for an alternator right now. You didn't offer much details about your car.</p></blockquote><p></p>
[QUOTE="Lasherž, post: 8705788, member: 679555"] From what I'm seeing online your car has a pretty weak alternator, 110A unless you get more detailed with the year and everything. Usually you don't need to upgrade a car's electrical until you pass 1500W, but I guess you're there if you're pushing your other speakers hard. I think upgrading the alternator will make the largest difference. Your headlights are dimming, but modern headlights depending on what type they are require almost no voltage drop to visually see it. The reason why the caps aren't helping is because you're lacking power production, not power storage. An AGM battery will help get more power at once, so will the caps, but you said 12.1v. Is that with the car on or off? If the car was on that's an extremely low voltage and you're probably going to damage the battery/alternator eventually if you haven't already. What you need is an alternator capable of keeping up, your voltage while it's running should not be lower than 12.4v ever, not even during heavy beats, and resting should be above 13v. A bad battery can pull it down. As popwarhomie already touched on, to do a HO alternator you'll need to upgrade your wires, but you can probably get away with just a better alternator that still fits the car, not necessarily HO. This all depends on what you've got for an alternator right now. You didn't offer much details about your car. [/QUOTE]
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Headlight dimming like crazy HELP!!
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