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Message: <blockquote data-quote="tcguy85" data-source="post: 2968361" data-attributes="member: 574289">i have an 07 scion tc....does anyone elses car seem to not ever put out anywhere near 14.4 volts normally? like the only time i've ever seen it at 14.4 is when i first start the car in the morning. and by the time i get to work which is about 15 minutes(10 miles) away it's down to about 13.6-13.9v.also when i'm parked or stopped at a stoplight the voltage is always between 13.2-13.5. i know it's not extremely low but why is it never at 14.4 steadily? i do have a subwoofer with an amp that does 800watts rms but my voltage never drops more than .3 volts when it's at full tilt. the voltage in general just doesn't seem very high.once again... this is on a brand new 07 scion tc that i bought in august.</blockquote>

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