John,
I haven't been on the list much lately and I have not read this entire
thread. If I am following right you have a good quality battery pack of
Optima's but your commute is running too deep of DOC.
I would look into building a small secondary battery - 10Ah or so, out
of a high power battery. There was some talk a while back on the list about
dual packs and the configurations. I would think you could build a small
10 - 15 Ah battery out of Lion, Hawkers or some other battery. Whether you
used a direct connection through a relay or some sort of load controller
would be a matter of discussion. You could build it into the Sparrow or make
it portable in something like a tool box with a quick connect. This way you
could build multiple, have various configurations, swap them out, or connect
several at a time.
An example would be a laptop battery I have sitting here on my desk
that's 2.7 AH at 14.4V. 4 batteries in parallel is 10.8 AH, 10 of these in
series is 144V. I don't know what voltage the Sparrow is so I am guessing at
144V. Size would be about 5" x 7" x 30" and would weigh about 35lbs. I
know this would be expensive but its just an example.
This way it would extend the range of your Sparrow and lengthen the life
of your Optima's.
Todd Hunter
----- Original Message -----
From: "John G. Lussmyer" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, October 06, 2002 8:01 PM
Subject: Re: Sparrow YT lifespan
> At 08:35 PM 10/6/2002 -0400, Seth wrote:
> >If it takes you ~32Ah to get to Boeing, then get some 36Ah flooded
> >nicads. Or Saft 100Ah nicads. They will like the cool weather and the
> >deep discharge. If you can modify the battery box and have room to sit
> >higher and fit the batteries, then it seems to be the thing to do.
>
> Not Boeing. ScenicSoft inc. A small software company in Mill Creek.
> I'm considering other batteries, the problem with the Saft's are the
> height. Since they are 2 1/2" taller than the YT's, fitting them gets
very
> difficult, and raising the seat is a last resort move. My head is already
> nearly touching the roof.
>
> --
> John G. Lussmyer mailto:[EMAIL PROTECTED]
> Dragons soar and Tigers prowl while I dream.... http://www.CasaDelGato.com
>
>
>
