Re: [PSUBS-MAILIST] More Batteries....power configuration?

["steve" <steve@kobol.worldonline.co.uk>]

Hi All
i have a question, how do you decide how the power systems are configured on
a sub?
I was wondering if anyone can tell me why there are different voltages used
and what benefits / disadvantages there are.
for instance, say my sub has 10 x 12v 110AHr batteries as its main power
source, if they were all connected in parallel, i potentially have over
1000AHrs to play with.
Why would i want to connect the batteries to give a higher voltage at a
lower current capacity?  does a motor running at 48v work more efficiently
than a motor running at 12v or is it something more technical than that?

to put it simply, if most (or all) of the on-board systems will run on 12v
is there any benefit in running thrusters at a higher voltage?

Steve Bosworth
UK

----- Original Message -----
From: "Garry Muir" <garry.muir4@virgin.net>
To: <personal_submersibles@psubs.org>
Sent: Monday, April 28, 2003 9:23 PM
Subject: [PSUBS-MAILIST] More Batteries


> Hi Folks
>
> Try this URL for battery specs and US prices has most makes including
> Optima
>
> www.batteryweb.com/manufac.cfm
>
>
> Reagrds, Garry
>