Re: [Amel Yacht Owners] Darn Batteries-Link 10

Richard Piller <richard03801@...>

Be aware that when you use an alternator of that power
you may well need to use 2 belts to drive it. If you
stay with a single belt it is best to be sure it is an
"XL" belt. Also use a bracket that has a positive
method (some sort of jack screw/turn buckle) of
holding belt tension. OH, yes, carry lots of spare
single belts.
Richard SM 209

--- roger_h_banks <> wrote:

Mea culpa. In this thread, I referred to Trojan
T105s rated as 105 amp hours @ 6 volts.
They are in fact 225Ah @ 6v, giving a capacity over
4 batteries, series & parallel, of 450Ah
@ 12v, a far better setup for cruising. My batteries
were obviously half dead when I
installed the Xantrex Link 20, set to what I thought
was the capacity. These compensating
errors made all seem reasonable .... until the
batteries finally gave up the ghost. None of
this changes the import of the earlier discussion.

Having had a true expert on board to review my
future battery options and exhausting
many possibilities and types, we ended up with, yes,
Trojan T105's. The output of the,
presumably original, house alternator does not seem
to be anywhere near adequate, so I'm
about to embark on installing an Amp Tech 140A @ 12
volts, with an Ample Power SARv3

Roger, Mango 28, Zorba

--- In, Roger Banks
<roger.banks@...> wrote:


In the best spirit of friendship, here is a
hyperlink to the "Xantrex
Link 10 Battery Monitor" Owner's Manual. Nothing
in the manual refers
to control or regulation and, having personally
installed a Xantrex,
I can confirm there is no such function in mine.

Here is a link to a sample Mastervolt, the Alpha
Pro, which is a 3-
step charge regulator. Different beast altogether.

Hope this all helps Tony with his issue.

Regards, Roger, Mango 28, Zorba

On 13/03/2007, at 7:18 PM, Krassopoulos Dimitris

I do not agree that the Link 10 does not control
anything. It
controls the
voltage cut off for sure so if it is not
adjusted correctly the
will never be charged the same applies also as
you mention for the
capacity. So in any case the Link 10 or
Mastervolt have to be
adjusted to
the voltage and capacity.



S/Y Alma Libre



[] On
Behalf Of Roger Banks
Sent: Tuesday, March 13, 2007 8:44 AM
Subject: Re: [Amel Yacht Owners] Darn
Batteries-Link 10

With respect, I don't think the Xantrex Link
controls anything. What
it does do very well is to monitor the
batteries' charging and
discharging. What Dimitris is probably referring
to is that the Link
needs to know the Amp Hour capacity of your
battery bank in order to
do its calculations. Trojans, for instance are
105 Ah at 6 volts;
thus four batteries would equate to 210 Ah at 12
volts or 105Ah at 24
volts. I have a Link for my 12 volt system and
it comes preset to
assume the battery bank has 200 Ah at 12 volts;
it needs to be set.
This information should allow you to check and
set accordingly.

However, Tony doesn't mention a Link, but a
Mastervolt, model not
specified. It probably has the same need for
batterybank data.
Whether it's a Link or a Mastervolt, there is no
substitute for
checking all the readings with a multimeter. In
case you've never
used one, they're really dead easy and provide
more accurate data
then other approaches. The Link for instance is
just a computer and
so works on the garbage in garbage out
principle. (I did find a fault
in my Link and had to return it to the USA for
replacement under
warranty.) Maybe the Mastervolt does actually
control the charge
voltage, i.e. a master regulator as it's name
suggests, in which case
you'd be looking for something like a grubscrew,
which may be on the
front, the back, or inside of the unit. The
manual or a google search
would tell you.

27.3 volts is a maintenance charge only; however
the amperage at 3-5
indicates that the batteries are full (2% of
capacity). You do need
to explore the issue until you can establish
28.4 volts. You mention
that you have to run the generator 2-3 times per
day to keep up with
demand but do not provide any data on demand.
It's not hard to
establish the amp draw for each consumer; the
Link can show that
information with a bit of attention to isolating
other draws, and
shows the total draw, currently and accumulated,
as standard
displays; a multimeter would be better. It's not
wise to use more
than half the Ah capacity of your bank and some
would say 30%. All
the more reason to ensure your capacity is
correctly recorded in the

Finally, have you considered adding solar and
wind generation, to set
you free of hydrocarbon generators and
shorepower? My solar alone
powers the fridge and ventilators when I'm away,
which is the
majority of the time. It's a good feeling to
know the boat is carbon
neutral most of the time. More practically, it
means that I can leave
her disconnected from shorepower and avoid the
dreaded marina
galvanic corrosion.

Regards, Roger, Mango 28, Zorba

On 12/03/2007, at 8:56 PM, Krassopoulos Dimitris

You have to check the Link 10 equipment. This
controls the charging
of the
batteries you have to reset and adjust the
unit accordingly to the
you want. There is no manual in the net for
the link 10 but there
is some
information in the
<> com/> where
the is a
faq section. I have the manual in paper and I
could not find the
pdf file if I find it I will inform you.


S/Y Alma Libre


=== message truncated ===

____________________________________________________________________________________Ready for the edge of your seat?
Check out tonight's top picks on Yahoo! TV.

Join to automatically receive all group messages.