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Old 08-12-2019, 04:37 PM
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arizonian arizonian is online now
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Join Date: Jul 2007
Location: Tucson, Arizona
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My standard is no lower than 10.5 volt while cranking, and it should read 12.5-12.8 unloaded, engine not running. A battery that reads 11.8 unloaded is bad or needs a charge in my book.

I recently repaired my 6.Slow pos. battery cables and checked the amp draw on each battery at the ground lead with a clamp-on meter. Each read ~275 amps, within 2 amps of each other.

After re-reading your post, appears you only have one battery. Check the voltage drop at each cable. If VD is nill, change the battery.
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