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

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12-17-2018, 11:30 PM	#5
Steeveedee Ram-A-Lam-A-Ding-Dong Join Date: Jan 2013 Location: Simi Valley, CA Posts: 11,903	Re: How much should a batterys voltage drop once you turn off the engine? A fully charged battery is 12.6 Volts. If your battery drops below this voltage even when disconnected, it is defective. It should not continue to drop voltage when disconnected. You may see minor drop because of the trickle draw for a radio to keep it alive, if it has a memory and a clock, if it is connected. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

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