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Lights Dim When Starting or When Bass Hits

Old 10-12-2014, 03:37 AM
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Make sure your amp cables are ran straight to the battery. Also the ground needs to be bigger than the feed.
If they are ran to a distribution block the feed probably isn't big enough to handle the load. Your amp should run cooler also.
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Old 10-12-2014, 08:47 AM
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Thanks, another good fix for my audio guy to look at.
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Old 10-12-2014, 09:03 AM
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All good suggestions.. A capacitor(or 2) cant hurt anything if you cant get any more batteries into the system(they also act/are large capacitors) Cabling is a huge loss of power, larger is ALWAYS better when it comes to audio power cables. Another thing you can do while trying to limit dimming is make sure your alternator is up for the task. Ive had alternators rebuilt larger than factory specs to help with that as well.
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Old 10-12-2014, 09:06 AM
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IMHO: house battery keep as deep cycle. The batteries that are used to start the engines should be normal Starting / Cranking Batteries.

Also, the house battery should be isolated from the Cranking batteries.

Other experiences may vary.
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Old 10-12-2014, 09:18 AM
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The house battery is totally separate. Was told by mechanic to use deep cycle for engines, won't be first time he was wrong. Would have thought that they would hold up longer with no adverse affects.
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Old 10-12-2014, 09:20 AM
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Deep cycle for trolling motors. LOL.
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Old 10-12-2014, 09:22 AM
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Deep cycle is not for big block engine starting.
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Old 10-12-2014, 09:27 AM
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What are effects of running bbs with a deep cycle battery?
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Old 10-12-2014, 09:32 AM
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Think of a battery as a 5 gallon bucket full of water. A deep cycle is design for low-moderate prolonged demand..you have a hole in the bottom the size of a dime that water (electricity) slowly poors out of. A starting battery has a hole the size of a big gulp so water can gush out for a short period (heavy load by starter)
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Old 10-12-2014, 09:32 AM
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I would make the amp ground 200% of the batt feed side
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