seprate battery

[colonel6632]

so i've been thinking about installing a carputer in my car. i have a 120amp battery isolator. What i'm thinking is purchasing a battery and putting it in the rear. have the carputer connected to it. I'm also going to run all my stereo equipment off it. that way i can run the stereo without the car running and not worry about a dead battery. The deck will still be connected the same way to the front battery.

Is this a good idea or a bad one?

[widbyj]

Sounds like a pretty good idea although I'd run power to the Head Unit from the battery also, no point in having a HU that runs when the amps are gone. Still use the factory power to signal the HU to turn on/off.

Only thing to watch for is good grounding everywhere to prevent any power drops/backfeeding.

[Ian 2000GL LA1]

great idea i used to have 3 extra batteries im just running 2 now, i'de be sure to put a 150-200 amp fuse at both ends of your power runs within 18" of the battery just so if anything shorts through the wire your protecting all batteries, then just put a good chasis ground in. look at my build logs and i have pictures of where i grounded mine, great fuse blocks for the money are x-scorpions there exactly like the 50 dollar rockofrds but i think u can get them with fuse for less that $15.

[Ryan from Ohio]

Possibly a bad idea.

Depends on the battery.

Depends on the amplifier being used.

[colonel6632]

i would just be getting a regular car battery that has a large standby time. maybe a redtop or something in the future.

What should i look out for?

[Ian 2000GL LA1]

you should have an AMG or dry cell battery, standard batteries are vented, IE allowing toxic crap to leak at times, i had a nautilus that did that

[Ryan from Ohio]

If you use a standard battery you will have to vent it to the outside with tubing. So you must get a battery with this feature.

Red tops arent meant for secondary audio based batteries. yellow tops are. However I would look into a Kinetic battery first.

[Fi-Alero]

Sounds like a good idea if you are not wanting to run down the front battery.

Like Ryan said, look into a Kinetic battery. I have tried every other brand, and ended up being a dealer for kinetic. Best batteries for the price.

[Ryan from Ohio]

^Yup.

Jon @ Kinetic is a member on my message board. Ive met the man in person and Kinetic supplied some party favors for ASS.

Good people.

[colonel6632]

so if i got a kinetic battery it wouldn't need to be vented? then this would seem like a pretty good idea? I actually have alot of plans for electronic stuff in my car. and i want to leave the car battery for the car so i can always start it. I'm getting tired of pushing it and popping the clutch to start it when the battery is dead

[Atmosphere]

You can pick up a nice little portable starter if you really need to. I have one I keep in the garage, you can set it to either charge the battery or to give it enough to start and charge itself.

[colonel6632]

ya. but i dont want to strain the battery to much. also seems like yellowtops are a good idea too. i mostly dont want to have to worry about venting it. it would be secured in the trunk

[Cashdollar2009]

I'm getting tired of pushing it and popping the clutch to start it when the battery is dead

How often do you listen to the radio with your car off? :huh:

[Fi-Alero]

The kinetics are sealed batteries so they will not need to be vented. The yellow tops suck for the price.

Sounds like you need to replace your front battery also :blink:

[colonel6632]

i actually listen to my radio quite often with the battery off. at parties and such. alot of outdoor stuff. and i do need to replace the front one. i think it's the second battery my alero has seen.

[tomekbrek]

I think that second battery is a good idea, but only GEL, i have kinetik, the smallest one and is very good, even on my stuff i can listening about 3-4h without charging.

here are pictures:

http://carphotos.cardomain.com/ride_images/3/3365/4381/33412190030_large.jpg

and Power Station XXL

http://carphotos.cardomain.com/ride_images/3/3365/4381/33412190031_large.jpg

[Chipmunk-Alero]

I think that second battery is a good idea, but only GEL, i have kinetik, the smallest one and is very good, even on my stuff i can listening about 3-4h without charging.

here are pictures:

http://carphotos.cardomain.com/ride_images/3/3365/4381/33412190030_large.jpg

and Power Station XXL

http://carphotos.cardomain.com/ride_images/3/3365/4381/33412190031_large.jpg

WoW.......this guy knows what hes doing. LOL its Ryan from Poland. :lol:

[Fi-Alero]

I think that second battery is a good idea, but only GEL, i have kinetik, the smallest one and is very good, even on my stuff i can listening about 3-4h without charging.

here are pictures:

http://carphotos.cardomain.com/ride_images/3/3365/4381/33412190030_large.jpg

Please tell me that battery is being held in by something lol

What is with the caps?

[tomekbrek]

Yes, by sackcloth belt, is taken off right now.

With caps? nothing, one is for woofer amp, second for sub amp, amplifiers has additional connectors for caps.

[Fi-Alero]

I asked why you had them lol.

[tomekbrek]

More power, more fun, in SQL is one rule, power never too much- it is PL version, maybe USA is a different, i do not know.
By the way... I added sec. battery and XXL, woofer and sub - control is better, dynamics is better, etc. on sound stage you can see instruments and size up.
e.g. without battery and xxl i received notes for focusing about 16-17/20
right now even 19-20/20

My english is so weak to describe everything about it.

[Fi-Alero]

Just pointing this out:
Capacitors in theory do not give you more "power". They have their place in car audio, and that place is power supplies in amps, and also crossovers.

If you read on your kinetic 600 (the smallest battery kinetic makes,) it has the power of 100 1 farad caps. This shows exactly how weak caps are.

If you want a useful place to place small capacitors, try putting them inline with your headlights. They are a constant power draw, thus making this a perfect use for a cap.

[Afugy]

Your amp is full of caps why would you need one on the out side?

[tomekbrek]

you do not understeand me... i know for what is cap, and i know that kinetik is as a 100 caps 1F, but it is still battery, it could be as a cap or as a battery for engine, cap couldn't be... in this way, maybe you will try to start engine through 1000 caps... maybe i wrote wrong, kinetik give me more "current" ? in PL power is the same as current.
and maybe you should try to check good caps, not china market, and for HI-END SQL systems, not for DB-drag.
I am not one guy who use good caps for better sound, it is demand in HI-end systems, we normally use 1 good cap for one amp.

[tomekbrek]

Your amp is full of caps why would you need one on the out side?
do you know for what are caps inside an amp?

[Fi-Alero]

A cap is not a battery.

Also, a cap has nothing to do with a "high end SQL system" so why is it in demand lol?
I'll tell you what an external cap is, it is a marketing scam that looks fancy. I don't care where the cap is made at.

I come from a scene that tries to keep voltage high for a long length of time. If it's for a SQ run.... or even an SPL run, you will not see a cap.

Where you will see a cap is from the local wal-mart shopper that has about 5 in line with his amp, and says his "boi" makes it be slappin.

[Afugy]

do you know for what are caps inside an amp?

Okay I can play your game too.

I will answer your question to a question with 2 questions.

Do you always answer a question with a question?

And are you going to answer my first question?

I once fell for the cap gimmick too, I was very sad when it did nothing.:(

[Ryan from Ohio]

The great Capacitor debate...

I will just say this.

Whats the Electrical Series Resistance of the Kinetic?

Of the Cap?

Cap wins, hands down. Thus it will provide the current faster to the amp than the battery. Thus during transient note it will better stiffen the voltage rail.

Is it a measurable difference? Probably not.

Is it an accurate statement? You bet.

Are the caps necessary? No they are not.

Do the caps hurt? No they do not.

Are they worth the money? Probably not, but obviously the Polish guy has butt tons of money... :lol:

[colonel6632]

lol. thanks for the great cap debate.

but would the smallest kinetic battery be good enough. is a kinetic battery what i need to connect my computer and stereo to?

[Ryan from Ohio]

See the huge problem here is...

Computer.

In car audio unless you got a mega alternator its not uncommon to see fluctuations.

Computers do NOT like power flux's.

So if you dont have the proper alternator, adding a second battery is just another nail in the coffin.

[colonel6632]

ah. well bigger alternators are really expensive. but i guess i'll have to start saving

[Ryan from Ohio]

Well it depends on what you have exactly...

[tomekbrek]

Ryan, i see that caps here (USA) and wire in PL - the same problem, we have a lot of posts on our forums about wires, a lot of them has the same title: wires and influences on sound and tones.


Afugy, i will tell you one thing about my caps, normally are switch off, even 1h-2h, but only one hard beat, and they are on... why? if caps doesn't work and are not needed.

I see and hear the difference with caps and without, the same is with XXL, but... it is not a subject of this post, for me, EOT here.

[Fi-Alero]

Wires effecting "sound" in a car environment? Please explain.

I have a feeling this is going to sound like the THD debate.

[colonel6632]

Well it depends on what you have exactly...

well the computer is just a little one. the intel atom processor. and i have that alpine v-power amp at 1000w. and a clarion amp at 150w rms. and that crossover.

[Ryan from Ohio]

Put a voltage meter on your setup and run it at idle then crank the system up.

If the voltage caries or changes your alternator is not sufficient.