What is normal voltage

kball05

Member
Original poster
Joined
Mar 6, 2017
Messages
55
Location
Easley, SC, United States
What is normal voltage supposed to be when driving or idle? Mine is always little less then 14v

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Yep that's normal because your alternator (charger) is kicking extra voltage into the battery whenever the engine is running. When the engine is not running, the battery voltage of a charged battery without the alternator running will be around 12.6 volts on the gauge.