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Audio/Battery Question

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Romeo View Drop Down
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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Topic: Audio/Battery Question
    Posted: 21 September 2010 at 5:31pm

Although my audio system is on hold at the moment (Suspension is more of a pressing concern at the moment, and I just paid for schooling), that doesn't mean I can't prep a battery box in the mean time for a new battery (Pretty sure the current one is cooked, heavy, up high and out back). So for any of our electrical aces, or sound gurus, do you think this would be sufficient as a battery: http://www.kinetikaudio.com/2009/product.asp?P=KHC600&C= 1

Bare in mind that while I will have a fair bit of audio stuff in the car, I don't intend to be playing it overly loud, and I do have an upgraded alternator to try and keep her juiced. Just basically wondering if that should be sufficient to turn her over in the morning, as the next size up is 26 pounds, it would be nice to save those 8 pounds.

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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 6:41pm

Why...lol, depends on how much in amps your driving, Cap is good to have, again get a Optima Yellow and you'll be fine

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Post Options Post Options   Quote kharmata Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 6:46pm
And what about the alternator...?
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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 6:57pm

Again...what are you running, how much amp's, etc...I play my system LOUD and have a 6 channel JBL at 600 watts...have never even come close to draining.

I know any audiophile will suggest to upgrade the world...Right Zander, Tyler & Waylon...lol

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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 7:35pm
Get a good Optima a red is good enough, or a yellow is better.  I can and have ran my Stereo for over 4hrs straight with amp and sub and am still able to start the car.  I can also run a 110v 350w inverter for up to 8hrs powering a Laptop with an external set of speaks with sub.  Anything under 750w you won't need more than a good battery and possibly a cap. If you go over 1000w then I would say upgrade to dual batteries and a good cap.
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Post Options Post Options   Quote Fire451 Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 8:05pm
i would recommend just getting a yellow top, it will do exactly what you want from it, I have had a red top for years and just reciently upgraded to a yellow top myself.... if you need a cap I have one here that is still brand new in the package and will sell it cheap (unless brian still has/wants dibbs)
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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 8:10pm
It's not so much the capacitor aspect of the Kinetic that interests me (The subs I have are tiny, and I don't intend to work the sound system at all) so much as the weight. That one I linked to is 600CCA, and weighs just 14 pounds. 14! If you guys don't think it's possible to use it for true battery duty, I suppose I will invest in an Optima instead, but they're a bit heavier, and significantly larger...
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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 8:13pm

I see a trend..."Optima Yellow Top"

YellowTop Group 75/25 Dual Purpose (Deep Cycle & Starting):

Weight 37.8lbs.
Length 9.38inches
Height 7.75inches
Width 6.81inches

http://shop.optimabatteries.com/products/productdetail/Yello wTop+Group+75/25+Dual+Purpose+%28Deep+Cycle+%26+Starting%29/ part_number=D75/25/1737.0.1.1.62466.0.0.0.0?pp=8

Or

INTERSTATE BATTERY MEGA-TRON PLUS - 85 MONTHS - 700 CCA

Weight: 32.8
Width: 7.25
Length: 9
Height: 7.63

 

Had me thinking Colby...Yellow Top worth the Weight...haha, get it

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Post Options Post Options   Quote Capt Fiero Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 9:45pm
Wow nice to see Mr Fire451 posting up, haven't seen you in a while.  You and the ladies should come out on the 25th with everyone. 6 Fiero's will be on the track racing.
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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 9:53pm

Originally posted by Fire451 Fire451 wrote:

if you need a cap I have one here that is still brand new in the package and will sell it cheap (unless brian still has/wants dibbs)

Cheers man:)...no need

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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 9:54pm

Originally posted by Capt Fiero Capt Fiero wrote:

Wow nice to see Mr Fire451 posting up, haven't seen you in a while.  You and the ladies should come out on the 25th with everyone. 6 Fiero's will be on the track racing.

Performance driving

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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 10:19pm
Bah, 32 pounds is still waaay more than the next size up in the Kinetic range, which moves up to 26 pounds. And at 800CCA, I'm sure that model will be more than enough to start my car in the morning.
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Post Options Post Options   Quote Colby Quote  Post ReplyReply Direct Link To This Post Posted: 21 September 2010 at 11:25pm
Originally posted by Bassman Bassman wrote:

Had me thinking Colby...Yellow Top worth the Weight...haha, get it

No? Do you mean Tristan?

Originally posted by Bassman Bassman wrote:

Originally posted by Capt Fiero Capt Fiero wrote:

6 Fiero's will be on the track racing.

Performance driving


lol, was about to write the same thing.
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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2010 at 6:06am

Originally posted by Cheese Cheese wrote:

Originally posted by Bassman Bassman wrote:

Had me thinking Colby...Yellow Top worth the Weight...haha, get it

No? Do you mean Tristan?

Nono... Colby is my nick name from way back in the day...

Kidding, of course.

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Post Options Post Options   Quote Bassman Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2010 at 7:13am

Both of ya..Tristan's the one looking and Colby advised on spec

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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2010 at 7:40am

lol

Aw, and here I thought you were just ignoring lovely little Tristan.

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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2010 at 5:02pm
Well, I might have to go to the larger 800 model, it's tough to say... The 600 only has a 20A/H rating, which means the alternator will kill itself trying to charge it up in the mornings, and more than a day or two and I wont start up... On the other hand, it's almost 150% the weight of the 600... Decisions, decisions...
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Post Options Post Options   Quote CFoss Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2010 at 9:53am

Keep in mind with your calcs that music is about 30% duty cycle. Meaning, if you run your 600W flat out, it will only suck about 200W for real (15A).

 

So it's like leaving your lights on basically.

 

As far as batteries go, my limited understanding is this:

 

The tradeoff is between deep cycle and starting amps. A deep cycle has less plate surface area, but thicker plates. The oposite is true for a starting battery...mores surface area but thinner plates (For any given battery package size). The combo batteries are just that, some thin, some thick, or all medium thickness.

Caps help reduce the transient requirements on the power system (Battery and altenator). They are best when mounted really close to the main power device, in this case the pwer amp. This is because of the impedance of longer leads lessens the transient help the cap can give.

It should 'clean up' and base distortion due to lack of supply which can occur in setups with long, small supply wiring to the amp. Another way to look at it is if you buy the big cap, you can tell the guy trying to sell you the 4/0 cable for you amp the big finger, 'cause really you only need #10 (Which will easily pass 30A). This will more than pay for the cap in a longer supply run.

 

It won't help in your amp-hour energy requirement.

 

If it was me, I'd stick with the smaller deep cycle battery, and a larger altenator, plus a nice juicy big cap stuck next to the power amp.

 

1 more thing...if you run this setup, have a really good low impedance ground from the power amp to the head unit. This will prevent ground rise oscillations from occuring.

 

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Post Options Post Options   Quote Romeo Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2010 at 12:15pm
Deep cycle = mega heavy though. And they splash. The reason I was looking at batcaps isn't actually the sound system, but rather the weight of them. They're feathery, even when compared to pricey gel cells.
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Post Options Post Options   Quote CFoss Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2010 at 1:24pm

Yup they're heavy alright. Cake...eat it....you get the idea.

 

batcaps? Is this a composite word, or are you looking a super(ultra)capacitors?

 

Chay

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