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Old 26th June 2004, 08:56 PM   #21
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help the intermittent dimming yeh. id still not be happy if my lights were permanently a bit down. could well be working perfectly though, have you checked the voltage drop accross ur lights with and without all the audio stuff working?
Steve
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Old 26th June 2004, 09:02 PM   #22
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no, i havent checked the voltage. It all works, and I don't notice the dimming, so I'm not gonna worry about it.

Before I got the cap, I was getting noise from the stock head unit. After I put in the cap, the noise was gone.
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Old 26th June 2004, 09:03 PM   #23
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noise? ewwwwwww! must have been some random RF getting in on the power lines that the caps filtered out a bit
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Old 2nd July 2004, 05:52 AM   #24
djQUAN is offline djQUAN  Philippines
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what about my system. I'm having a little trouble with my setup (well, not a big one) just slight dimming of the headlinghts (and/or dome lights) when I turn the volume about 70% up. the output of the alternator never goes below 14V with the aircon off (even with the stereo turned up loud) otherwise it sticks to 13.6V constant with the A/C on.

I have two amps with a total of 440watts RMS and a 60A main fuse for both amps (each amp fused individually with a 35A and 25A)

I was thinking of adding a cap to that..... if it's worth it. running out of space at the cargo area. (SUV)
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Old 2nd July 2004, 06:51 AM   #25
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am still not any wiser! a cap is better for more short term volts i think but a second or bigger battery wil supply more current, i think the cost of caps are to much for there performance, i think i may just get another battery.
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Old 2nd July 2004, 08:38 AM   #26
sss is offline sss  Israel
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when using extra battery u should upgrade the alternator ,dont forget that
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Old 2nd July 2004, 12:31 PM   #27
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Quote:
Originally posted by sss
when using extra battery u should upgrade the alternator ,dont forget that
Why is that? I only want it for a second dedicated amplifier.
I though that i would have it on a relay for charging so when i though it was down a little i could flick a switch and start to charge it? very crude i know, but i think it would be ok,
Or should i get a charging circuit dedicated for it?
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Old 2nd July 2004, 03:58 PM   #28
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an additional battery means an additional load for the alternator.

because your original alternator is designed to charge one battery, adding another means you need an alternator that can charge two batteries.
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Old 2nd July 2004, 04:17 PM   #29
sss is offline sss  Israel
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Quote:
Originally posted by Paradise_Ice
when i though it was down a little i could flick a switch and start to charge it?
a bad idea !
can u get a switch rated for 60-80A or so, if u can it will be werry expensive

besides as far as i know anyone with an amp rated 600W+ got higher power alternator also
when higher power alternator is connected the lights will also stop dimming (or at least dimm less) with no help of extra battery or big cap
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Old 2nd July 2004, 05:23 PM   #30
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Quote:
Originally posted by djQUAN
an additional battery means an additional load for the alternator.

because your original alternator is designed to charge one battery, adding another means you need an alternator that can charge two batteries.
i was thinking i could use a split charger?
something like this, I jsut dont know what which is best?
A battery sensed or a machine sensed?
http://www.indexmarine.co.uk/pages/battman.htm


Quote:
Originally posted by sss

a bad idea !
can u get a switch rated for 60-80A or so, if u can it will be werry expensive

besides as far as i know anyone with an amp rated 600W+ got higher power alternator also
when higher power alternator is connected the lights will also stop dimming (or at least dimm less) with no help of extra battery or big cap
I though i could use 3 relays in parallel, so for 30 amps per relay i could pass 90 amps of current,
am told altenators have most of there power wasted in normal charging circuits? i dont know if that is true or false?
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