Battery monitor
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
**************Feeling the pinch at the grocery store? Make dinner for $10 or
less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001)
Seems to me it would depend on the current used by your devices, not on
the batteries. I would think engine starting and maybe bow thruster
would use the most, unless you run some really heavy duty stuff from an
inverter. My diesel's starter maxes out at about 350 amps, so for me
the Link 2000's 500 amp shunt is no problem.
Richard Cook
New Moon (Bounty 257, Volvo KAD44P)
StWillett@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?
IMHO, your battery setup is inadequate to the task. As it is, you will have
to run VERY large and expensive cabling forward to the bow
thruster/windlass. It is much wiser to place two batteries in the bow with
dedicated charging. Your engine could be started by two Group 31 batteries
or one 4D - easily. The shunt size is based upon the maximum draw
anticipated; which is likely to be the bow thruster for brief bursts and the
windlass for more extended chain retrieval time.
Ron Rogers
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@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
**************Feeling the pinch at the grocery store? Make dinner for $10
or
less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001)
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To unsubscribe or modify your subscription options (get password, change
email address, etc) go to:
http://lists.samurai.com/mailman/options/trawlers-and-trawlering
Trawlers & Trawlering and T&T are trademarks of Water World
Productions. Unauthorized use is prohibited.
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
Contrary to other comments, the rated capacity of the shunt should be not
less than one third more than the combined total amperage that it is to
carry. Also, mechanical wire holders should support the wire such that the
shunt studs are not supporting the wire weight, and heat expansion should be
figured into the mounting such that the studs are not strained.
Richard