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What did I do wrong

The boat had not been used in 2 weeks or the Battery's charged in 2 weeks

Starboard Battery Port Battery # 3 battery combined with Starboard bat
Cold 12.8 v 13.6v 13.0 v

eng 12.8 v 13.7v 12.8 v
running

Both running
same time 12.8 v 13.7 V 12.8 v

Reading at 5. V
Volt meter
connections ( back)
Starboard eng
running

Volt meter both
engines running 5.v 5.v

any ideas where to go from here.

Joel
 
joel8080 said:
............ any ideas where to go from here.
Joel
Click to expand...
Yes, to your local NEW boat dealer for a sea trial. :D Nah..... just kidding!

Joel, I'm not quite understanding your readings.
A fully charged battery, at rest for 6-8 hours, after having been charged, should read approx 12.4v or so.
A battery when undergoing engine alternator charge, may read in the neigborhood of 13.6v or 13 .8v .... sometimes a bit higher, depending on the battery's state of charge.
You may want to check your VOM against another known-to-be-good VOM.
 
Rick

I took the readings 2X there almost new Optimas 34's and the Volt Meter is a UEI which are pretty good.

I screwed up the cold reading on the Port Battery s/b 12.6 V sorry.

Joel
 
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