Sounds reasonable David, the only caveat I can think of is a short on the m
ain buss=0Awhich would flatten the battery.=0AThis is the reason for Bob Nu
ckolds emergency buss which I think is a good idea=0AGraham=0A=0A=0A=0A=0A_
_______________________________=0A From: David Joyce <davidjoyce@doctors.or
g.uk>=0ATo: europa-list@matronics.com =0ASent: Wednesday, 2 October 2013, 1
0:13=0ASubject: Re: Europa-List: Re: Battery questions=0A =0A=0A--> Europa-
List message posted by: "David Joyce" <davidjoyce@doctors.org.uk>=0A=0A=0AF
red, I would go along with the notion hat a single Odyssey battery ( or any
modern equivalent - but not a conventional lead acid battery) is sufficien
t. It Has worked well for me for 12 years. Never needs charging. Starts fir
st time in mid winter after being ignored for 3 months. I do not see the ne
ed for doubling up. Once had a rectifier failure in the North Sea with perh
aps 50 nm to go to land, but it was not an issue. Got all the way back to G
loucester without any drama! The engine carries on (even my 914 which has i
ts electric fuel pump driven directly from the alternator and carries on in
spite of rectifier failure or indeed if you switch off both master and alt
ernator switches) and- you don't absolutely need any other form of electr
icity, although the battery has ample reserves to run a radio and a GPS (if
it doesn't have it's own internal battery) for several hours. It is possib
le to imagine some really complex form of failure that could bring
another battery into use,- but I have never heard of anyone having such
a failure, and the weight of an extra battery + wiring is a heavy penalty t
o pay. Build light & fly further!=0ARegards, David Joyce, G- XSDJ=0A=0AOn W
y@hotmail.com>=0A> =0A> Fred,=0A> =0A> I have an Odyssey 545 mounted on the
rightside footwell. The 545 is a little smaller than the 680, has- somew
hat less cranking power and saves about 1.3 kg over a 680. Although its sma
ller capacity it cranks and cranks and cranks my 912s for years, even in fr
eezing cold wheather. =0A> For what it is worth.=0A> =0A> Kees de Bussy=0A>
=0A> =0A> =0A> =0A> Read this topic online here:=0A> =0A> http://forums.ma
tronics.com/viewtopic.php?p=409646#409646=0A> =0A> =0A> =0A> =0A> =0A>
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