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Two batteries with stock alternator?


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I would like to run two batteries with either a bus bar or an isolator.. I'm not sure which yet.. But before i start on that, can a stock alternator handle charging two batteries? I'm not sure the stock amperage of my alternator, i'm sure it's not fantastic..

2009 Cobalt LT

Pioneer Headunit

2x Pioneer 6 1/2 (stock amp)

2x Pioneer 1" tweeters (stock amp)

2x Pioneer 6x9 (stock amp

4x Pioneer 6 1/2

Pioneer GM-6400F

Soundstream DTR 1700 R.I.P

2x Champion series PRO 12" subs

0 AWG Big 3, Stinger SP1700 battery

To come:

New or repaired DTR!!

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How big of an alt and what batts? You may need to charge them at night.

Edited by hdorre
On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

Mitsubishi 3000GT (Old Build)

Headunit: Pioneer 80PRS

Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids

Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies

Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s

Electrical :Singer 260A Alt & JY Power Lithium

 

2005 Chevy Colorado Ext Cab

Headunit: Pioneer 80PRS

Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms

Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s

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:popcorn: I just ordered the wiring for second battery setup in preparation for alt upgrade this tax season. From what I read and don't quote me but from what I have read once the amplifiers have leeched on the batteries the alt is still going to have to try to top off batteries and also keep amps going. So it all depends on how much power your running and the amperage of your alt. Let the guys on here know those two things and they will help you out for sure.

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How big of an alt and what batts?

It's probably in the 120-130 amp range lol. and the first battery is stock, the second is the direct replacement from autozone.

2009 Cobalt LT

Pioneer Headunit

2x Pioneer 6 1/2 (stock amp)

2x Pioneer 1" tweeters (stock amp)

2x Pioneer 6x9 (stock amp

4x Pioneer 6 1/2

Pioneer GM-6400F

Soundstream DTR 1700 R.I.P

2x Champion series PRO 12" subs

0 AWG Big 3, Stinger SP1700 battery

To come:

New or repaired DTR!!

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Share on other sites

bus bars OR an isolator? those are 2 very different things you know.

the stock alt will be fine with 2 batteries. i recommend keeping the system down for the last couple min of your drive so the alt has a chance to charge the batts a little before you shut the car off.

are you trying to put that autozone battery in the car/trunk? because if its not sealed it'll vent poisonous, corrosive gas into the car.

Edited by skittlesRgood

If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood.

Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s.

http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/

Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build

Yeah. im pretty sure they dont warranty retarded people.

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How big of an alt and what batts?

It's probably in the 120-130 amp range lol. and the first battery is stock, the second is the direct replacement from autozone. I'm running 1000-ish watts. (1700w amp with gains turned down) and headlights are dimming pretty bad.. I have a 0awg ground, 0awg engine block ground, but i haven't done the alternator charge wire because the battery is in the trunk, and it's a bitch.. the stock charge wire is 8 guage i believe

2009 Cobalt LT

Pioneer Headunit

2x Pioneer 6 1/2 (stock amp)

2x Pioneer 1" tweeters (stock amp)

2x Pioneer 6x9 (stock amp

4x Pioneer 6 1/2

Pioneer GM-6400F

Soundstream DTR 1700 R.I.P

2x Champion series PRO 12" subs

0 AWG Big 3, Stinger SP1700 battery

To come:

New or repaired DTR!!

Link to comment
Share on other sites

bus bars OR an isolator? those are 2 very different things you know.

the stock alt will be fine with 2 batteries. i recommend keeping the system down for the last couple min of your drive so the alt has a chance to charge the batts a little before you shut the car off.

are you trying to put that autozone battery in the car/trunk? because if its not sealed it'll vent poisonous, corrosive gas into the car.

I know they're very different, i'm trying to decide if i want to use this battery to run when the car is off, that is, an isolated battery, or if i might just go ahead and use it for more power. and the autozone battery is the recommended replacement, i will use a Y adapter to attach it to the vent hose along with the stock battery.

2009 Cobalt LT

Pioneer Headunit

2x Pioneer 6 1/2 (stock amp)

2x Pioneer 1" tweeters (stock amp)

2x Pioneer 6x9 (stock amp

4x Pioneer 6 1/2

Pioneer GM-6400F

Soundstream DTR 1700 R.I.P

2x Champion series PRO 12" subs

0 AWG Big 3, Stinger SP1700 battery

To come:

New or repaired DTR!!

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Share on other sites

bus bars OR an isolator? those are 2 very different things you know.

the stock alt will be fine with 2 batteries. i recommend keeping the system down for the last couple min of your drive so the alt has a chance to charge the batts a little before you shut the car off.

are you trying to put that autozone battery in the car/trunk? because if its not sealed it'll vent poisonous, corrosive gas into the car.

I know they're very different, i'm trying to decide if i want to use this battery to run when the car is off, that is, an isolated battery, or if i might just go ahead and use it for more power. and the autozone battery is the recommended replacement, i will use a Y adapter to attach it to the vent hose along with the stock battery.

Do not do this. Get a fully sealed battery so there is no chance of it spilling or leaking.

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bus bars OR an isolator? those are 2 very different things you know.

the stock alt will be fine with 2 batteries. i recommend keeping the system down for the last couple min of your drive so the alt has a chance to charge the batts a little before you shut the car off.

are you trying to put that autozone battery in the car/trunk? because if its not sealed it'll vent poisonous, corrosive gas into the car.

I know they're very different, i'm trying to decide if i want to use this battery to run when the car is off, that is, an isolated battery, or if i might just go ahead and use it for more power. and the autozone battery is the recommended replacement, i will use a Y adapter to attach it to the vent hose along with the stock battery.

Do not do this. Get a fully sealed battery so there is no chance of it spilling or leaking.

no, it should be fine with that hose. just make sure the extra battery cant fall over. itll be the same thing as you are doing now and that is perfectly safe. obviously an AGM battery will do a lot more good but that vent will work just fine.

Edited by skittlesRgood

If I answered you in a well mannered, informative way, you asked a good question or had a good attitude. If I was an asshole, you asked a stupid question or you had a fucktard attitude... or I was in a bad mood.

Team BassickHU: Pioneer AVIC Z110Front: Peerless SLS 6.5", Peerless HDS 4", Rainbow tweeter - running activeAmp: JL HD600/4 and DC 4 channel (bridged to midbass)Processor: JBL MS-8Subs: 2x 12" AA MayhemsAmp: DC 3kElectrical: DC power 270xp alt. 1/0 big 4. XSpower D3400 and six D680s.

http://www.stevemeadedesigns.com/board/topic/121795-29-update-the-buick-is-getting-a-rebuild/

Top career scores: DBdrag 151.7 MECA SQ 82.25My SOTM build

Yeah. im pretty sure they dont warranty retarded people.

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Share on other sites

bus bars OR an isolator? those are 2 very different things you know.

the stock alt will be fine with 2 batteries. i recommend keeping the system down for the last couple min of your drive so the alt has a chance to charge the batts a little before you shut the car off.

are you trying to put that autozone battery in the car/trunk? because if its not sealed it'll vent poisonous, corrosive gas into the car.

I know they're very different, i'm trying to decide if i want to use this battery to run when the car is off, that is, an isolated battery, or if i might just go ahead and use it for more power. and the autozone battery is the recommended replacement, i will use a Y adapter to attach it to the vent hose along with the stock battery.

Do not do this. Get a fully sealed battery so there is no chance of it spilling or leaking.

and unwanted fumes.

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