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#1
08-28-2005, 08:11 PM
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battery voltage
Hey guys. What would be the normal battery voltage for our cars? I ask this because I looked on my Apexi turbo timer, and it was in the battery voltage mode, and it was like 12.6, then it started to flash when it hit 12.5 and lower.
Thanks
__________________
 2006 Wicked White Evo IX GSR 323 awhp / 311 tq. (Dynojet) http://www.projectevoix.com http://www.4WStuning.com 99 RS < 98 GSX < 06 EVO 
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#2
08-28-2005, 08:51 PM
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Re: battery voltage
normal voltage should be about 14.4 or so... with car running...
__________________
"A man's greatest work is to break his enemies, to drive them before him, to take from them all the things that have been theirs." -Ghengis Khan
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#3
08-28-2005, 08:56 PM
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So do you think that since I'm getting such a lower voltage, it would suggest that my battery is going out?
__________________
2006 Wicked White Evo IX GSR 323 awhp / 311 tq. (Dynojet) http://www.projectevoix.com http://www.4WStuning.com 99 RS < 98 GSX < 06 EVO
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#4
08-28-2005, 10:44 PM
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Re: Re: battery voltage
Quote:
Just a question. How would you get 14.4 volts off of a 12 volt battery?
__________________
1991 GSX 2.3 Stroker
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#5
08-28-2005, 11:48 PM
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Re: battery voltage
When the car is on, the alternator is charging the battery. The alternator pushes the battery readings up to about 14. If it's higher than 15, you have a problem. If you have a voltage gauge, you can see this is action. If the electrical is only on, it uses battery power, and the volttage is 12... then drains.
With an aftermarket pulley, the power being produced does drop. Because the alternator isnt being worked as hard, I personally only see about 13.5 volts. Sometimes, it does jump to 14+ depending on whats going on and how Im driving. In conclusion, when car is on, the alternator is charging the battery, which brings the voltage to about 14. This is normal, and the car and accessories for it are made to run at this higher voltage.
__________________
2013 Chevy Sonic 1LZ Daily Driver, 1.4L Turbo, 6spd 75 Monte Carlo SBC 400 6.6L, Aluminum heads, Hurricane Intake... 12 Chevy Sonic 1LZ 1.8L - Traded 01 Pontiac Grand Am SE - RIP 95 Eagle Talon ESi-T 5spd - RIP 88 Oldsmobile Cutlass Ciera- RIP
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