Hi Dave
I did thought of that but
1 - my Aux Batt is also an Odissey PC625 which doesn=92t fit under
the tail
fairing, and if I decided to put it somewhere between the baggage area
and
the tail tip, I would not be able to service/replace it
2 ' I need the Aux battery to be an exclusive back-up to my
electron-dependant engine, in case of alternator death and Main Battery
is
out of electrons
I know that 3 batteries look really overkill, mainly to Total Weight
=85.
Thanks anyway
Carlos
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Dave
Wilenius
Sent: ter=E7a-feira, 2 de Setembro de 2008 14:09
To: aeroelectric-list@matronics.com
Subject: RE: Avionics Back-Up Power
Carlos,
You've probably thought of this but ... could you not move the 2nd
battery
backwards into the tail? Too much W&B shift?
regards,
Dave
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of Carlos
Trigo
Sent: August 29, 2008 12:17 PM
To: aeroelectric-list@matronics.com
Subject: RE: Avionics Back-Up Power
> >
> >Since I had to put some weight in the tail of my RV-9A, I decided to
> >install a battery as back-up power to some avionics, the EFIS, the
COMM
> >Radio and the Transponder.
> >
> >
> >My GRT EFIS has 2 power inputs, which are internally controlled (EFIS
uses
> >the electrons from the highest source), so this is easy to wire.
> >
> >However, the Radio (SL-30) and the Transponder (GTX-330) only have 1
power
> >input, therefore the question:
> >
> >
> > - How should I wire power, both from Main Battery and Back-Up
Battery,
> > to the COMM Radio and the Transponder?
>
> How big a battery is it? How many batteries does the airplane
> carry already . . . in other words do you already have an
> AUX battery?
>
> Bob . . .
I don't know exactly, because I still don't know the exact weight I need
for
W & B, but I am planning for a battery around 10Ah
I do have 2 other batteries, Main and AUX, since my engine is an
electron-dependant Subaru.
Carlos
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