How about doubling the yellow tops and running them in parallel buddy
pairs?
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Steve Kobb
Sent: Tuesday, August 14, 2007 9:56
To: [email protected]
Subject: [EVDL] YellowTops and the one-third weight rule
I'm converting a 2002 Chevy S-10 Shortbed. Key components are an ADC
9-inch motor and a DCP Raptor 1200 controller.
Weight of the truck after removal of engine, exhaust, fuel system, etc.:
2600 lbs.
Have considered using 13 Optima D31A YellowTops, but I'm mindful of the
battery weight rule-of-thumb; namely, that batteries should account for
one-third of the vehicle's finished weight.
I haven't added anything back to the truck yet, but let's say that
cables, battery boxes, and all the other stuff add back 500 lbs, which
would put the truck back up to 3100 lbs.
That would suggest a battery load of roughly 1530 lbs., if I were to
observe the one-third rule.
So you can understand why I'm concerned about the YellowTops. I'll need
13 of them to get 156 volts, but -- at 60 lbs. each -- they only add up
to 780 lbs. That is only 1/4 the finished weight; not 1/3.
Here are my questions:
-- Will I sacrifice handling and drivability with an "underweight"
battery load?
-- Would I still need to put at least one or two of these YTs under the
hood, or could I safely put all of them in the bed?
Before you answer, I'll just give these additional details:
-- The truck will be a daily driver. Total distance from home to work
and back: 32 miles.
-- Fortunately, I WILL be able to charge at work.
-- Need to keep up with freeway traffic. Occasional peppy accelerations,
with a top sustained speed of 60 mph.
-- Planning to protect the YTs with BattEQ balancers.
I've also considered flooded lead, but I'm concerned about the adverse
effects of heavy current draw.
Thanks in advance for any guidance you might have.
Cheers,
Steve Kobb
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pairs?
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Steve Kobb
Sent: Tuesday, August 14, 2007 9:56
To: [email protected]
Subject: [EVDL] YellowTops and the one-third weight rule
I'm converting a 2002 Chevy S-10 Shortbed. Key components are an ADC
9-inch motor and a DCP Raptor 1200 controller.
Weight of the truck after removal of engine, exhaust, fuel system, etc.:
2600 lbs.
Have considered using 13 Optima D31A YellowTops, but I'm mindful of the
battery weight rule-of-thumb; namely, that batteries should account for
one-third of the vehicle's finished weight.
I haven't added anything back to the truck yet, but let's say that
cables, battery boxes, and all the other stuff add back 500 lbs, which
would put the truck back up to 3100 lbs.
That would suggest a battery load of roughly 1530 lbs., if I were to
observe the one-third rule.
So you can understand why I'm concerned about the YellowTops. I'll need
13 of them to get 156 volts, but -- at 60 lbs. each -- they only add up
to 780 lbs. That is only 1/4 the finished weight; not 1/3.
Here are my questions:
-- Will I sacrifice handling and drivability with an "underweight"
battery load?
-- Would I still need to put at least one or two of these YTs under the
hood, or could I safely put all of them in the bed?
Before you answer, I'll just give these additional details:
-- The truck will be a daily driver. Total distance from home to work
and back: 32 miles.
-- Fortunately, I WILL be able to charge at work.
-- Need to keep up with freeway traffic. Occasional peppy accelerations,
with a top sustained speed of 60 mph.
-- Planning to protect the YTs with BattEQ balancers.
I've also considered flooded lead, but I'm concerned about the adverse
effects of heavy current draw.
Thanks in advance for any guidance you might have.
Cheers,
Steve Kobb
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev