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02-08-2006, 01:23 PM
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#1
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Newbie
Join Date: Jan 2006
Posts: 32
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power sags
i have a 1000wat amp and 500watt amp running from my standard battery Wreg peugeot 206 1.1, After 10-15 mins of music on loud the lights start dipping and the car's power sags, what could i do to sort this would it be best to uprate the alternator or buy a bigger battery? also could i fit another battery under bonnet as a back up that the sound system can run from cheers
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02-08-2006, 01:37 PM
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#2
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Neither darque nor pervert
Join Date: Apr 2004
Location: Elsewhere
Posts: 12,910
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Those are both options that I think will help.
A capacitor will also help.
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02-08-2006, 01:47 PM
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#3
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Newbie
Join Date: Jun 2005
Posts: 17
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Upgrade your battery to chasis ground. It makes no sense to have a 8ga and a 4 ga wire coming from the pos. and just one 8 ga going to the neg. IMO
Alternator upgrades can be very expensive but would more then likely do the trick.
I would recommend a optima, they're great batteries and do help some. A new battery won't be a cure all though.
hope that helps
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02-08-2006, 02:56 PM
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#4
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Newbie
Join Date: Nov 2005
Location: Riga, Latvia
Posts: 21
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I wouldn't hope on capacitor.
Grond wire was the first upgrade that I made to my Pug 206 as It had similar problems. And guess what, it made things alot better. Not that the problem disappeared at all, but still alot better than it was before. If possible, upgrade the wire that connects the alternator to the battery. And change the battery if it is still not as good as you would wish.
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02-08-2006, 03:07 PM
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#5
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Banned
Join Date: Apr 2004
Location: Adelaide, Australia
Posts: 109
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if it starts off fine, then after 10 minutes gets bad, then you need a bigger alternator, as its not supplying enough current, and the battery is getting discharged 
you may be able to get the stock alternator rewound for more current for a few hundred bux...
look into it
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02-08-2006, 06:58 PM
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#6
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Low Bitrate
Join Date: Dec 2005
Posts: 78
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a capacitor will not help...it makes it worse.
only solution is a high output alternator, for ur system i would reccomend 150 amps or more
try www.excessiveamperage.com
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02-08-2006, 07:00 PM
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#7
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Low Bitrate
Join Date: Dec 2005
Posts: 78
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Quote: Originally Posted by xtraxmechx
Upgrade your battery to chasis ground. It makes no sense to have a 8ga and a 4 ga wire coming from the pos. and just one 8 ga going to the neg. IMO
Alternator upgrades can be very expensive but would more then likely do the trick.
I would recommend a optima, they're great batteries and do help some. A new battery won't be a cure all though.
hope that helps
make sure if its the optima...make sure its the yellow top cause the red and orange tops provide High Cranking Amps and no deep cycle
yellow tops provide good cranking amps and take a hella long time to discharge completly
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02-08-2006, 08:48 PM
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#8
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_
Join Date: Mar 2004
Location: Little Elm, Texas
Posts: 13,481
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you should first check all of your wiring. Make sure you have adequate wiring...same guage if not larger on the negative as what's on the positive. Make sure you are using the right size wire in the first place.
IF you are using inadequate wire size, you may be able to lessen the problem.
However, the symptoms indicate that your alternator isn't adequately sized. Sure, a battery couldn't hurt, but this issue seems to go beyond the battery.
What is the total amperage of your amplifiers? What gauge power and ground wires are you using? What is the amperage rating on your alternator?
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02-08-2006, 09:11 PM
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#9
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FLAC
Join Date: Sep 2004
Location: Falls Church, VA
Posts: 903
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Im betting on inproper install. What are the make and model number of these amps?
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02-08-2006, 09:30 PM
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#10
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_
Join Date: Mar 2004
Location: Little Elm, Texas
Posts: 13,481
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1.1 - is that the size of the motor in that car?
if that's the case...there's NO way you have stock alternator that can keep up with your demand...
also, 1000watts/500watts doesn't mean crap, tell us the specifics of the amplifiers...
there's also a damn good chance that you have a TINY battery in that car as well...
sounds like if you want to have any kind of serious stereo, you're going to need a new car....lol
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02-09-2006, 08:17 AM
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#12
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_
Join Date: Mar 2004
Location: Little Elm, Texas
Posts: 13,481
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Greeny - you're really new here to this site so I will go ahead and warn you
do a search on caps in this forum (Car Audio) and see what I'm talking about. It will save yourself a lot of headaches....
some people on here don't seem to want to believe that caps are bad, mkay?!
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02-09-2006, 05:00 PM
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#13
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Low Bitrate
Join Date: Dec 2005
Posts: 78
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go on ahead and try ur cap...c if ya system dont die...i swear it will...not to be mean but it will
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02-09-2006, 05:07 PM
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#14
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Maximum Bitrate
Join Date: Aug 2005
Location: Anaheim Hills, Ca
Posts: 847
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A capacitor will help your amps get constant power...but it won't help your car in your specific situation. Try a cap first...if your car dies, then you will need to upgrade your battery and/or alternator. If not, problem solved.
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02-09-2006, 05:30 PM
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#15
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Newbie
Join Date: Feb 2006
Location: Minnesota
Posts: 41
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and waste $100+ on a cap for it not 2 work? doesent sound like somthing id wanna do... why not just save a little more for a new alt. by the way.. have u ever wondered why they never have a before and after showing the cap actually improving the power sags/ dimming lights?? because it doesent!!!!
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