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'[EE]: NiMH Battery Source?'
2002\08\27@155327 by Gary Neal

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       I'm looking for a source for NiMH batteries somewhere around the 10-30Ahr
capacity range.  Haven't had much luck finding any in this capacity
range.  These are for a Hybrid Electric Vehicle that I am working on.  Just
thought someone out in this vast knowledge base might have a good
source.  Please let me know.

Thanks,

Gary

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2002\08\27@164557 by eronica Merryfield

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In the radio control world, 3Ah is the highest currently.
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"The best things in life aren't things"




{Original Message removed}

2002\08\27@193322 by M. Adam Davis

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NiMH are generally manufactured in smaller sizes, then combined to make
larger voltages/currents.  Even if you did find a single cell that can
provide over 5Ah of energy it would be significantly cheaper (while
heavier and using more volume) to use several smaller cells to make up
that storage.

Also keep in mind that as they charge and as they discharge they
generate heat.  A larger cell is going to have a harder time dissipating
that heat than several smaller cells.

Look into lithium ion rechargable batteries for larger capacity in a
smaller/lighter cell.

-Adam

Gary Neal wrote:

{Quote hidden}

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2002\08\28@030408 by Morgan Olsson

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>In the radio control world, 3Ah is the highest currently.

Compared to the Hybrid fuel busses accumulators, 3Ah is ant size... ;)

Another thing is to get to buy them of course.

/Morgan

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2002\08\28@102535 by Alan Gorham

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>In the radio control world, 3Ah is the highest currently.


There are reasons for this:

1) Electric flight applications require a balance between capacity, size and
weight,

2) The 'actual' consumer application for NiMh cells of this size is in
portable power tools.


I think the OP might be out of luck with his requirements......

Alan

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2002\08\28@105713 by Gary Neal

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        I guess I didn't specify this, but I'm looking for 12v batteries,
not individual cells.  I've found them commercially in the 50-100Ahr range,
but that is just too big and heavy for my application.  So, again I'm
looking for 12V, ~10-30 Ahr NiMH batteries (preferably with build in
cooling channels).  Any clues?

Thanks,

Gary


At 03:36 PM 8/28/2002 +0100, you wrote:
{Quote hidden}

Gary Neal
Research Assistant - Drivetrain Technology Center
Applied Research Laboratory - Penn State University
PO Box 30
Research Building West
North Atherton Street
State College, PA 16801
814-863-5468 (phone)
814-863-6185 (fax)

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2002\08\29@150923 by Michael Noel

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Try: http://www.lexelbattery.com

Bye
Miki

----- Original Message -----
From: Gary Neal <EraseMEgln103spam_OUTspamTakeThisOuTPSU.EDU>
To: <PICLISTspamspam_OUTMITVMA.MIT.EDU>
Sent: Tuesday, August 27, 2002 10:52 PM
Subject: [EE]: NiMH Battery Source?


>         I'm looking for a source for NiMH batteries somewhere around the
10-30Ahr
> capacity range.  Haven't had much luck finding any in this capacity
> range.  These are for a Hybrid Electric Vehicle that I am working on.
Just
{Quote hidden}

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