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i need a cap


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jthomsonmain 
Member - Posts: 9
Member spacespace
Joined: June 05, 2012
Location: New York, United States
Posted: June 06, 2012 at 6:34 PM / IP Logged  
Personally, I would recommend putting a sealed lead acid battery near your amp. Wire it just like you would a cap. A battery will push more current than a Cap will all day. No matter what you do without upgrading your alternator is going to put strain on your charging system.
still_walkin 
Silver - Posts: 644
Silver spacespace
Joined: April 18, 2007
Location: California, United States
Posted: June 06, 2012 at 7:25 PM / IP Logged  
True but forget to fuse next to the battery
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
jthomsonmain 
Member - Posts: 9
Member spacespace
Joined: June 05, 2012
Location: New York, United States
Posted: June 07, 2012 at 1:04 AM / IP Logged  
Nahh... Who needs fuses? They just keep your car from catching on fire :P
still_walkin 
Silver - Posts: 644
Silver spacespace
Joined: April 18, 2007
Location: California, United States
Posted: June 07, 2012 at 1:10 AM / IP Logged  
That's kinda the point ..... fuse within 15" of the battery
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: June 07, 2012 at 3:04 AM / IP Logged  
And don't forget to isolate the battery when not being used....
And it's TWO fuses if it's a 2nd battery - ie, one from EACH battery.
But this is a dead thread.
The OP's lamp dipping problem was solved with a cap.
Granted, it is not known if it would have been solved with better wiring (the Big-3 etc) or by using smaller & cheaper battery in lieu of the cap, but in this instance, a cap solved the problem and it has advantages over a battery (ie - maintenance & isolation is not as important).
This was not a case of filtering for amps - it was merely for the filtering of headlight power.
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