RE: Optima alternatives

[ethorpe@gric.com]

Bruce,

Exide is a GEL/AGM, basically a YT clone.

Evercel monoblock is the wrong form-size: 13.0"x7.0"x8.6" 40lbs
It's too long to fit in the existing space, only room for 8 batteries
(=96v).

For physical size, you could use a PowerSonic PS-12750, same relative
battery size but these have less capacity than YTs and weigh 54.7lb each! So
a 156v battery pack would weigh 711 lbs.

Some possibilities might be with Evercel MOD15-12, ganged together in 4 or 5
buddy units. But then you have a battery temperature issue (NiZn likes cool
temperatures). The 40ah cells might work, but takes 7 to equal 12v, which
makes a pack too long. Maybe a nice buddy pair.

But Evercel's quickly ballon in price. 
	YT pack                               ~ $1690  ~30 ahr
	Evercel monoblock (if they could fit) ~ $3575  ~66 ahr
	Evercel MOD15-12 x 4                  ~ $3289  ~38 ahr
	Evercel MOD15-12 x 5                  ~ $4111  ~48 ahr
	Evercel MOD40-12v x 2                 ~ $5720  ~52 ahr
	Panasonica EV-1260                    ~ $4370  ~48 ahr
based on 80% DOD for usable ahr rating at C/1



-----Original Message-----
From: Bruce EVangel Parmenter [mailto:brucedp@yahoo.com]
Sent: Tuesday, April 30, 2002 10:50 AM
To: ev@listproc.sjsu.edu
Subject: RE: Optima alternatives


Thanks Ed,

That is what I needed to know: 
 The size, weight and voltage are critical.

Here is what I found on an internet search

Yellow Top Optima Model D34/78-950 12V Deep Cycle Battery D750U 65ah
L 10"/254mm x W 6.8"/172.2mm x H 7.8"/198.1mm (to terminal tops)
Weight 43.8lb/17.6kg  

*Best prices I found (but you need to check their added shipping)
$159.95 http://www.alternatorparts.com/Optima%20Batteries.htm
$130    http://shop.store.yahoo.com/corvetteforum/opyeltopdual.html

-What is a good Optima YT source with the best price in the SF bay
area?

-US batteries does not have an Exide orbital comparable model?

-Has anyone checked if the Evercell would fit?

There has to be an alternative we can find if we persist.
Sparrows may be tough to get new right now, but there
are used ones for sale. The new and current drivers are 
going to want help to resolve battery, controller and 
other EV component issues.

Like every other EV driver, they like their EV. They
are a positive PR force for the EV cause. It does not
matter what show/EVent I attend. Their is always 
people zooming to go look at and sit in the Sparrow.
-




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