T&T: Battery monitor

[Ken Tischler]

Steve,

We have a Link 1000 with the 500 amp shunt. It monitors a house bank
(also used for starting main engines) of twelve Trojan T-105's which
feeds a Xantrex Freedom 3000 inverter. The 500 amp shunt has been more
than sufficient in this application. I suppose if I tried to start
both engines simultaneously there might be an issue, but that will
never happen. The inverter has a 130 amp charger and I have 100 amp
alternators on each engine, so the shunt is also fine for the 300+
amps during the charging phase.

--
Ken Tischler
Microship
DeFever 49 RPH



On Sat, Mar 28, 2009 at 11:32 AM,  <StWillett at aol.com> wrote:
> I am getting ready to order a Xantrex Linklite battery monitor, I'll  be
> connecting it to the main bank which is 2 8D batteries serving house and
main
> engine start functions. since it can monitor 2 banks I'll hook it up to the
> generator start battery also.
> The unit comes with a 500 amp shunt, I see other shunt capacities are
> available. I am not sure how the 500 amp rating is determined or if the 500
 amp
> size supplied will be ok for my application.   I am not on the  boat now so
don't
> know the exact ratings of the 8D's.  The product   description mentions " a
> new shunt selection is available to measure currents up  to 1000 amps
> respectively"
> When the 8 D's die I 'll probably go to golfcart batteries and add a
> separate main engine start battery (group 31 size) which I will then monitor
 instead
> of the genset battery.
>  The boat is equipped with 12V windlass and bow thruster, no  inverter.
> So, my question is, will the standard 500 amp shunt suffice for  the above
> application?
> Thanks for your help and suggestions,
>  Steve Willett
> Monk 36, Gumbo
> Thibodaux, Louisiana
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