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Old 11-22-2016, 06:54 AM   #20
danderer
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City: Newark, DE
Vessel Name: Infinity
Vessel Model: Kadey Krogen 48
Join Date: Jan 2015
Posts: 709
Quote:
Originally Posted by Roger Long View Post
It was early so 12V cabin lights were on. The engine barely turned over, like a car with a nearly dead battery. The cabin lights dimmed nearly to invisible and the alarm light on the panel went out. I checked the battery voltage, both were 13 volts. The other engine started normally. I fired up the generator and switched on the battery charger. Engaging the starter produced the same result.
The above suggests the batteries were at 13V in the morning with no source of external charge. Unlikely, and that doesn't tell us anything about the batteries real state or their ability to support a somewhat heavy load.

I'd want to know the age of the batteries and their condition via SG and possibly a load test, not voltage.
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