On Thu, 29 Nov 2007 17:07:51 GMT, "Delburt D"
wrote:


wrote in message
...
On Nov 29, 2:24 am, "Eisboch" wrote:
"Delburt D" wrote in message

news:ILn3j.15376$B21.15016@trndny07...



Just for the record, we are using a 15000 watt battery pack that weighs
828 lbs. Add to that the battery cable, 2/0 welding cable, the charger,
this is a plug in, Controllers etc.

With battery technology what it is today we are lucky to push a nice
little light weight hull like ours as much as we can. The future
however
is looking brighter for much better batteries with higher capacity and
much less weight.

Where is the high capacity battery technology heading? The last major
advancement I am aware of was the development of lithium ion technology
but
you don't see many of those in really big battery applications. Lithium
can
also be a bit dicy in terms of handling (or getting wet) if I recall
correctly.

Seems like we are still stuck in the lead/acid age, either in wet cell or
AGM configurations despite many years of forecasts predicting major
technological breakthroughs in battery construction.

Eisboch

My little mahogany skiffs with an 8 horse will make a smaller carbon
footprint than the electric plants used to charge these things,
hopefully when I come here selling them in spring, I get such a warm
reception...

While we are looking at 15000 watt hours of power it still only takes $1.50
, ( ref $.10 / KW ) to fully charge the packs as is. Compare to $150 to
fill a 50 gal gas tank. I know we are talking a difference in performance
levels but you can still be out on the lake all day and not only make a much
smaller carbon foot print but also NO Carbon Monxide or burned oil residue
or any of the many other compounds created by burning gasoline in an
internal combustion engine.

Tom


And, most importantly, spill fewer cocktails!
--
John H