Electrics Problem
CALISO
Mark
Sun 2 Dec 2007 10:35
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We have an electrics problem that we could do with
some help to resolve/ understand.
The boat has 24v house batteries and a mastervolt
Mass 24/50 battery management system. Yesterday evening the Voltage in the
batteries registered 14V and the autopilot and other equipment started to pack
up. We ran the engine to charge the batteries back up to 100% and over 25V.
Since 3am to 9am the voltage has dropped down to 22.27v. Our consumption of
power ranges from 2.7amps to 7amps which we believe is normal for the equipment
we have on.
We can charge the batteries with the engine and
will probably have to run it 3 times a day. What we do not know is how low a
voltage we can allow to the batteries to fall to without increasing our
problems. Should we charge when the Voltage has fallen to 22v or can we go down
to 20V? Do we need to maintain the batteries at 24v+ or can we get away with
less.
Yesterday pm we changed a temperature sensor on the
batteries as the previous one was not stuck to the batteries but just sitting on
them. However we do not see how this would affect the voltage.
The other possible cause of the problem is we had a
wind generator installed just before we left Las Palmas. If this has not been
installed properly could this be the issue.
We do have a multimeter on board but need some
advice on where to look for the problem.
Any thoughts on what is causing our problem would
be appreciated.
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