T&T: Battery Connections

[Peter Bennett]

Thursday, October 18, 2007, 10:07:22 AM, tbehan6468 wrote:

tac> Hi Everybody, I have another battery question.

tac> I currently have twin 8D batteries which I am replacing. I
tac> am replacing one with 2 Group 27 batteries wired in partallel
tac> which?I will use for my starting bank. I intend to replace the
tac> other 8D with golf carts to use as a house bank.

tac> My question concerns the best way to wire up the 2 group
tac> 27s to the boat. I know how to wire them in parallel. But I don't
tac> know the best way to?connect them to the boat cables coming from
tac> my 3-way switch. Should I connect both?the?positive and negative
tac> cables to one battery or is it better to connect the positive to
tac> one battery and the negative to the other battery ? Surfing the
tac> web, I've seen diagrams showing both ways.

tac> Thank You,

tac> Tim Behan

Another solution to the "diagonal/same battery" connection dilemma is
to connect the terminals of each battery independently to a Blue Seas
Power Post or Power Bar. This is particularly useful if you have
several wires that you want to connect to the positive (or negative)
terminal of your combined battery bank, as all the additional wires
can connect to the power bar, rather than having to connect multiple
wires to a battery terminal.


-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Ennos 31 "Honeycomb"
GPS and NMEA info: http://vancouver-webpages.com/peter 
Vancouver Power Squadron: http://vancouver.powersquadron.ca