Subject:
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Re: Battery types
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 29 May 1998 22:00:35 GMT
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Original-From:
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Pandit Panburana <pdp@ix.netcom.%spamcake%com>
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Viewed:
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3514 times
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I believe the 9.6 volt also makes a good match for
most LEGO motors.
-Pandit
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> From: Brett Anthony <anthonyb@ecs.csus.edu>
> To: handyboard@media.mit.edu
> Subject: Re: Battery types
> Date: Friday, May 29, 1998 3:49 PM
>
> At 11:44 PM 5/28/98 -0400, you wrote:
> > ...was just wondering if the Handy-Board can run on other types of • batteries...
> <SNIP>
>
> My understanding is that 7.2V will work fine. I suspect 9.6V is
> used simply because 8 AA NiCd's fit so well in the specified box.
> The chief concerns here are: (1) do you have enough voltage • overhead
> for the 7805; and (2) can you draw enough (instantaneous) current for • your
> motors? This is not a question of capacity (mah), just amps.
> Unless your motors are small and VERY efficient, I believe • Lithium
> cells won't work. I don't know about NiMH; you'll have to check the • specs.
> Remember, motors can pull big currents when stalled or under load.
>
> Brett Anthony
> Research Technician
> School of Engineering and Computer Science
> California State University, Sacramento
>
> e-mail: anthonyb@ecs.csus.edu
> phone: (916)278-6253
> fax: (916)278-5949
> address: Brett Anthony
> E&CS, CSUS
> 6000 J St
> Sacramento CA 95819-6023
>
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