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Voltage drop, when should i be concerned?


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At what voltage should I be worried? Was listening to some tech nine and today my Stinger volt meter dropped down to about 12.8 being the lowest. Typically it sits about 14.2-14.5V at Idle on start up. It is wired to the amp, so this is the voltage my amp is seeing BTW. Im just worried im getting to low. opinions? :unknw:

"Toyota Camry rebuild page 21 (link)http://www.stevemeadedesigns.com/board/topic/183768-94-crossfire-camry-18s-walled-singer-alt-has-arrived-rebuild-starts-pg-10/page-21

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2 CROSSFIRE C5 1700D

2 CROSSFIRE C7 18

HOOD. NSB GROUP48 TRUNK SMS AGM400

DUAL RUNS X SCORP 1/0 OFC

275A SINGER ALT.

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SOUNDSTREAM TA4.280

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12.8 ain't nothing to worry about.

I typically don't even worry until low 11s.

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12.8 isn't to bad. As long as its above 12 you are good to go. ideally I would wanna stay above 12.6 so 12.8 is ok.

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If you have any question about voltage drop, consult the manual for the voltage range of your product. Don't stray outside of that range -- high or low and IMO you shouldn't need to worry about it

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Youll get alot of dif answers here..

First you should check to make sure the volt Meter is reading right with a dmm.

After that. Personally below 12v or so on music is sketchy for long periods ie. Longer than 15 20 sec. 12.8 is right around battery resting which means your maxxing out the alt and starting to dip into battery reserve.. which is fine.

Some ppl will say buy 10000 more bats and 5 alts below 14v is crazy.

Others will say as long as it doesnt go into protect idc..

Etc.

Setup:


2010 Hyundai Elantra


Factory Unit via 4 chan NVX LOC


Excessive Amperage "H/O" Alt


Xs D3400/ Xs XP3000


Big 3. 2 Runs of +, 2 Runs of -


DD M3b and 2 12" AQ HDC4s

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I had a stinger meter in my yukon. Was dead on with my DVOM. Played full tilt and was .3v off. When I wired to .35ohms and full tilt, 3.0v off.

2006 GMC Yukon
Pioneer HU

SHCA ran throughout

Crescendo BC3500

One 18 AA Mayhem in a 4th order

ZED Levithian 6 channel

Rainbow Dual 6.5 comps ran Active
matt142-1-1.jpg
http://www.stevemeadedesigns.com/board/topic/155628-matt14s-yukon-mayhem-in-a-4th-ordernew-amps-and-bats/page-3

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3.0v off is alot...

Mine is spit on tho.

But 3.0v is waaay off.

Setup:


2010 Hyundai Elantra


Factory Unit via 4 chan NVX LOC


Excessive Amperage "H/O" Alt


Xs D3400/ Xs XP3000


Big 3. 2 Runs of +, 2 Runs of -


DD M3b and 2 12" AQ HDC4s

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3.0v off is alot...

Mine is spit on tho.

But 3.0v is waaay off.

Read 14.1v at the meter.... multimeter read at teh amp was 10.2v.

2006 GMC Yukon
Pioneer HU

SHCA ran throughout

Crescendo BC3500

One 18 AA Mayhem in a 4th order

ZED Levithian 6 channel

Rainbow Dual 6.5 comps ran Active
matt142-1-1.jpg
http://www.stevemeadedesigns.com/board/topic/155628-matt14s-yukon-mayhem-in-a-4th-ordernew-amps-and-bats/page-3

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I don't like to go below 12.8 (batts rest at 12.78).. and refuse to for my alt and batts' sake.

Is it necessarily "bad" to? Depends on how you look at it.

Your drop isn't horrible, but Id personally want much less.

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

Electrical: Singer "390" and JY Power

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