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How much should a batterys voltage drop once you turn off the engine?

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12-17-2018, 09:56 PM	#1
bob8619 Registered User Join Date: Jan 2014 Location: Ft Myers Florida Posts: 571	How much should a batterys voltage drop once you turn off the engine? How much, if any, of a drop in voltage should you see in a battery once you turn the engine off? My 3 month old battery keeps dying and I can't find a draw anywhere so I disconnected the battery and within an hour it went from 12.50 volts to 12.35 volts. I don't know if theres an acceptable range or if it should hold steady. __________________ 1968 C10

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